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Cell enclosure structure, e.g., housing, casing, container, cover, etc.

Subclass of:

429 - Chemistry: electrical current producing apparatus, product, and process

429122000 - CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
429178000 Having terminal 326
429185000 Having seal feature 135
429164000 Cylindrical unit cell type, e.g., cup container electrode, tubular electrode, casing, etc. 124
429176000 Container only 58
429175000 Cover only 40
429186000 Having cell assembly support feature 27
429177000 Housing or casing with plural covers 5
20090263713BATTERY COVER ASSEMBLY - A battery cover assembly includes a back cover, a battery cover and at least one elastic device. The back cover includes a battery chamber recessed there-into and an separation-preventing portion protruding therefrom. The battery cover is slidably mounted on the battery chamber of the back cover and includes an anti-detaching portion protruding therefrom. The anti-detaching portion is configured for being blocked by the separation-preventing portion to avoid the battery cover being released from the back cover when the battery cover is slid relative to the back cover. The elastic device has two opposite ends secured to the back cover and the battery cover respectively. The elastic device is configured for providing an elastic force to open the battery cover relative to the back cover.10-22-2009
20090263712FILM-PACKAGED ELECTRIC DEVICE - To provide a film-packaged battery 10-22-2009
20090239142ELECTROCHEMICAL DEVICE - This electrochemical device includes a first frame, a second frame, and a laminated electrochemical element having a housing encasing an element. Outer edges of the housing are sandwiched between the first frame and the second frame. Hook members are provided on one of the first frame and the second frame, and indentations engaging the hook members are provided on the other one of the frames, thereby fixing the relative positional relationship between the first frame and the second frame.09-24-2009
20110151319SECONDARY BATTERY WITH ENHANCED STRUCTURE - A package structure of secondary battery includes a flexible battery cell which is arranged within an accommodation space enclosed by a rigid shell; and a sealing agent which is injected into the gap between the flexible battery cell and the rigid shell. By sealing the rigid body, the secondary battery has a waterproof capability and the structural strength of the flexible battery cell is further enhanced.06-23-2011
20110117425SECONDARY BATTERY - A secondary battery for reinforcing rigidity and having an easy venting structure. The secondary battery includes an electrode assembly for charging or discharging a power source; and a case for accommodating the electrode assembly and being sealed, wherein the case comprises: a first cover and a second cover, wherein the electrode assembly is accommodated in a space formed between the first cover and the second cover, wherein the first cover and the second cover are formed of different materials, and wherein the second cover05-19-2011
429187000 Having handle or lifting device 4
20090098455BATTERY STRUCTURE - A battery structure includes a main body and a pulling member. The main body has a first outer surface and a second outer surface which are parallel to each other. The pulling member is connected to the first outer surface and the second outer surface and forms a holding portion extending from the main body. When taking the battery structure out of an electronic device, a user only needs to pull the holding portion, and then the main body can be separated from the electronic device. Whatever the pulling direction is, the pulling member cannot be destroyed, so the convenience in usage and durability can be increased.04-16-2009
20080213660Battery - The invention relates to a battery comprising a casing having at least one handle, which is formed integrally with the casing and is at least partially recessed into the upper surface of the casing.09-04-2008
20100136425RAPID EXCHANGE BATTERY CONSTRUCTION - A rapid exchange battery construction is applied in a battery module of an electric device to supply power. The battery module is pivoted with a rotatable handle, a catching member is disposed on the handle, and a fixing structure is erected on a base of a battery assembly structure. A pressing portion and a releasing opening are disposed at a top edge of the fixing structure. The handle is rotated to a gripping position for lifting the battery module to install the battery module on the base along the fixing structure, and then, the handle is rotated to a withdrawal position to move the catching member to the pressing portion. The battery structure is designed in such a manner that the battery module is secured and fixed on the base, and an electrical connection relationship between the battery module and the electric device is ensured.06-03-2010
20090017373Battery Loading and Unloading Mechanism - Erroneous insertion of a battery into an imaging device resulting from downsizing of the battery is prevented. In a battery loading and unloading mechanism for loading and unloading a battery 01-15-2009
Entries
DocumentTitleDate
20130045413CURRENT COLLECTOR AND LITHIUM ION BATTERY - A current collector includes a support and at least one carbon nanotube layer. The support includes two surfaces. The at least one carbon nanotube layer is located on one of the two surfaces of the support. The at least one carbon nanotube layer includes a number of uniformly distributed carbon nanotubes. A lithium ion battery includes a cathode electrode and an anode electrode. At least one of the cathode electrode and the anode electrode includes the current collector.02-21-2013
20110206980ENERGY STORAGE DEVICE AND SYSTEM - An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anodic chambers are thus provided, at least one of which is evacuated below atmospheric pressure. A majority of anodic chambers can be spaced from one another in a manner that provides a substantially uniform reaction rate throughout the cathodic chamber. The housing and the plurality of solid electrolyte elements together may be configured to define a second volume devoid of solid electrolyte elements and that is sufficient in size to accommodate a desired number of solid electrolyte elements and to provide an accessible cathodic chamber filling point and that is further sufficient in size to alter the volume of the cathodic chamber with respect to the volume of the plurality of anodic chambers to achieve a desired volumetric ratio between the cathodic and anodic chambers.08-25-2011
20100151318THREE-DIMENSIONAL BATTERY WITH HYBRID NANO-CARBON LAYER - A Li-ion battery cell is formed from deposited thin-film layers and comprises a high-surface-area 3-D battery structure. The high-surface-area 3-D battery structure includes a fullerene-hybrid material deposited onto a surface of a conductive substrate and a conformal metallic layer deposited onto the fullerene-hybrid material. The fullerene-hybrid material is made up of chains of fullerene “onions” linked by carbon nanotubes to form a high-surface-area layer on the conductive substrate and has a “three-dimensional” surface. The conformal metallic layer acts as the active anode material in the Li-ion battery and also has a high surface area, thereby forming a high-surface-area anode. The Li-ion battery cell also includes an ionic electrolyte-separator layer, an active cathodic material layer, and a metal current collector for the cathode, each of which is deposited as a conformal thin film.06-17-2010
20100151317RECHARGEABLE BATTERY - A rechargeable battery including: an electrode assembly that includes a positive electrode, a negative electrode, and a separator interposed therebetween; a case to house the electrode assembly; a cap assembly that is coupled to an opening of the case and electrically connected with the electrode assembly; and an insulating member that is installed between the case and the electrode assembly. The insulating member includes a body disposed on the electrode assembly and a rib that extends from the body and contacts the case.06-17-2010
20090148765LITHIUM IRON(II) PHOSPHATE CATHODE ACTIVE MATERIAL - Lithium iron(II) phosphate containing cathode active material having lithium iron(II) phosphate particles and nano-carbons and methods of preparation thereof. In addition, the cathode active material includes iron phosphide and can be prepared under an inert atmosphere and sintered at high temperatures. The material mixture includes lithium compound, iron compound, organic carbon, phosphorous and nano-iron particles resulting in an electrode with higher unit capacity and maintenance rate.06-11-2009
20120183843SECONDARY BATTERY - An exemplary embodiment provides a lithium ion secondary battery using a high energy type anode, which enables long-life operation thereof. A secondary battery according to an exemplary embodiment comprises an electrode element in which a cathode and an anode are oppositely disposed, an electrolytic solution, and an outer packaging body which encloses the electrode element and the electrolytic solution inside; wherein the anode is formed by binding an anode active material, which comprises carbon material (a) that can absorb and desorb a lithium ion, metal (b) that can be alloyed with lithium, and metal oxide (c) that can absorb and desorb a lithium ion, to an anode collector with an anode binder; and wherein the electrolytic solution comprises a liquid medium which is hard to generate carbon dioxide at a concentration of 10 to 80 vol %.07-19-2012
20120183842SECONDARY BATTERY - An exemplary embodiment provides a lithium ion secondary battery using a high energy type anode, which enables long-life operation thereof. A secondary battery according to an exemplary embodiment comprises an electrode element in which a cathode and an anode are oppositely disposed, an electrolytic solution, and an outer packaging body which encloses the electrode element and the electrolytic solution inside; wherein the anode is formed by binding an anode active material, which comprises carbon material (a) that can absorb and desorb a lithium ion, metal (b) that can be alloyed with lithium, and metal oxide (c) that can absorb and desorb a lithium ion, to an anode collector with an anode binder; and wherein the electrolytic solution comprises a liquid medium which is hard to generate carbon dioxide at a concentration of 10 to 75 vol %.07-19-2012
20120183841SECONDARY BATTERY - A secondary battery includes an electrode assembly including a first electrode plate including a first electrode non-coating portion on which an active material of the first electrode plate is not coated, a second electrode plate including a second electrode non-coating portion on which an active material of the second electrode plate is not coated, and a separator between the first and second electrode plates; a collector electrically connected to an electrode non-coating portion of the first and second electrode non-coating portions, the collector including an insulation part at an insulation region of the collector adjacent the first and second electrode plates; and a case accommodating the electrode assembly and the collector.07-19-2012
20120177982SECONDARY BATTERY - An electrode assembly for a secondary battery having a positive and negative electrode plates with a separator interposed therebetween. The positive and negative electrode plates have coated and uncoated portions. The length of the interconnection between the coated and uncoated portion of the positive electrode plate is greater than the length of the interconnection between the coated and uncoated portions of the negative electrode plate to reduce heat concentration occurring at the positive electrode plate. In one implementation, that relative lengths between the boundary intervals between the coated and uncoated portions of the positive and negative electrodes are determined using a ratio comprised of the product of the relative resistances and thicknesses.07-12-2012
20100119934Container for Electric Energy Storage Device, and Battery and Electric Double Layer Capacitor Using the Same - The invention relates to a container for electric energy storage device excellent in the manufacturing efficiency and easy for surface mounting to an external electric circuit board, and a battery and electric double layer capacitor at high performance using the same. A container for electric energy storage device includes a frame (05-13-2010
20100119933GALVANIC CELL FOR AN ACCUMULATOR - The galvanic cell according to the invention comprises at least one current conductor and a casing. Said casing at least partially surrounds said galvanic cell. A contact area is assigned to said casing. The casing is at least partially materially engaged with the current conductor via the contact area. The casing comprises at least one first layer and one second layer. The materials of said first layer and said second layer of the casing are different in respect to at least one chemical material.05-13-2010
20100119932NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the present invention is to provide a high-energy density nonaqueous electrolyte secondary battery that controls the rise in temperature during short circuiting. Used is a nonaqueous electrolyte secondary battery 05-13-2010
20130078502INJECTION MOLDING COMPOSITION AND ARTICLE - An injection molding composition includes specific amounts of a poly(arylene ether), a rubber-modified polystyrene, a bisphenol bis(diaryl phosphate), and a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene. The composition exhibits improved hydrolysis resistance and is useful for injection molding lead acid battery cases that exhibit improved hydrolysis resistance when employed use in hot, humid environments.03-28-2013
20130078504ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, there is provided an active material. The active material includes a titanate oxide compound. The active material has a peak appearing in a range of 1580 cm03-28-2013
20130078503RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly including electrodes on both sides of a separator, a case including the electrode assembly and electrically connected to an electrode on one side of the electrode assembly, and a cap assembly coupled with the case and electrically connected to another electrode of the electrode assembly, wherein an external side of the electrode assembly and an internal side of the case are attached to face each other, and at least one of the external side of the electrode assembly and the internal side of the case is in the form of a screw unit.03-28-2013
20100075220Battery pack and method of manufacturing the same - A battery pack and method of manufacturing the same, the battery pack including a battery, and a plurality of metal cases surrounding the battery, wherein the plurality of metal cases includes a first metal case and a second metal case and the first and second metal cases are welded to each other.03-25-2010
20120244417LITHIUM ION SECONDARY BATTERY - The present invention provides a lithium ion secondary battery in which an electrode assembly, in which a positive electrode sheet having a positive electrode mixture layer and a negative electrode sheet having a negative electrode mixture layer are overlain each other, is housed in a container together with a nonaqueous electrolyte solution. The negative electrode mixture layer includes a carbon material having at least in part a graphite structure as a negative active material. When S (m09-27-2012
20130040189APPARATUS FOR PROTECTING BATTERY PACK - Provided is an technique for protecting a battery pack, in which an insulating film member and a support member are installed in a housing surrounding the battery pack, and the insulating film member is wound around and unwound from the support member fixedly installed in the housing. The technique prevents a short circuit from being caused by a conductive object penetrating into a high-capacity battery used in an HEV, PHEV or EV, so that it can prevent ignition and smoke from being generated by the battery as a result. The technique is configured to mount a battery of an HEV, PHEV or EV within a spatial margin and increase safety in the event of a collision. The technique can be applied to all vehicles using electricity in addition to the HEV, PHEV or EV.02-14-2013
20130040188RECHARGEABLE ELECTROCHEMICAL BATTERY CELL - Rechargeable lithium battery cell having a housing, a positive electrode, a negative electrode and an electrolyte containing a conductive salt, wherein the electrolyte comprises SO2 and the positive electrode contains an active material in the composition LixM′yM″z(XO4)aFb, wherein 02-14-2013
20130084486ELECTROCHEMICAL CELLS INCLUDING A CONDUCTIVE MATRIX - An electrochemical cell includes an outer housing, a separator for separating an anode material from a cathode material, wherein the separator is disposed in the outer housing. The electrochemical cell also includes a conductive thin sheet disposed around an outer circumference of the separator, wherein the conductive thin sheet is disposed such that it allows passage of the anode material between the separator and the conductive thin sheet. The electrochemical cell further includes a conductive matrix disposed between, and in contact with, the conductive thin sheet and the outer housing.04-04-2013
20130084487BATTERY PACKAGE FILLED WITH PHASE CHANGE MATERIAL AND BATTERY USING THE SAME - A battery and battery package is disclosed which improves a battery's heat dissipation capability by using an aluminum material and a phase change material capable of maintaining a suitable temperature through phase change according to a temperature in order to prevent a battery from being deteriorated in terms of performance. More specifically, battery package has a top case and a bottom case as a battery cell case for housing a battery cell. The top and bottom cases are adhered to each other, and either or both the top and bottom cases includes: a top sheet plate repeatedly undulated at predetermined intervals to form a plurality of unidirectionally extended convex parts to be filled with a phase change material; a bottom sheet plate formed in a flat shape and adhered to the top sheet plate; and a phase change material filled in between the convex parts and the bottom sheet plate.04-04-2013
20130101893HIGH-VOLTAGE LITHIUM-POLYMER BATTERIES FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a lithium-polymer battery cell. The lithium-polymer battery cell includes an anode and a cathode containing lithium cobalt oxide particles doped with a doping agent. The lithium-polymer battery cell also includes a pouch enclosing the anode and the cathode, wherein the pouch is flexible. The cathode may allow a charge voltage of the lithium-polymer battery cell to be greater than 4.25V.04-25-2013
20090155683INSULATING CASE FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - An insulating case for a secondary battery includes a main body and a support projecting upward from an edge of the main body such that an internal angle between the support and the main body is an obtuse angle. Further, a secondary battery including an electrode assembly, a can housing the electrode assembly, the can having an opening, a cap assembly covering the opening of the can, and an insulating case on the electrode assembly, the insulating case including a main body and a support projecting upward from an edge of the main body, wherein an internal angle between the support and the main body is an obtuse angle.06-18-2009
20090155682STRUCTURE OF A BATTERY SET - This invention is to disclose a structure of a battery set comprising a case, a battery body, a holder and a filling body. The case is formed like a clamp shape having an open space inside. The battery body disposed in the open space has a PCB adjacent to an open end of the holder. The holder is disposed on the open end thereof for holding the PCB. The filling body consists of one portion thereof filled in the open space to secure the battery body, and the remaining portions thereof respectively extending outwards to cover the outer side of the case. Therefore, the filling body both secures the holder and the protecting case and seals the open space.06-18-2009
20090155681Structure of a battery set - The present invention provides a structure of a battery set including a battery body and a holder. The battery body has a circuit board disposed on a side of the battery body. The circuit board has a plurality of conductive pads. The holder with “U” shaped profile is provided on the side of the battery body with the circuit board and keeps a vacancy against the battery body. The filling body is formed in the vacancy between the battery body and the holder to envelop the circuit board and secure the connection of the holder and the battery body.06-18-2009
20100104940BATTERY PACK FOR LITHIUM ION BATTERY CELLS - A battery pack configured for lithium ion battery cells includes an inner bonding layer, an intermediate stainless steel layer and an outer protective layer. Due to the arrangement of the intermediate stainless steel layer, the lithium ion battery cell having the battery pack in accordance with the present invention has desirable strength and energy density.04-29-2010
20100129704Silicon Negative Electrode, Lithium Ion Battery, Method of Preparing the Same - A silicon negative electrode comprises a current collector coated with a negative electrode material. The negative electrode material comprises a silicon negative active material and a binder. The binder comprises a first polymer, a second polymer, and a third polymer. The first polymer comprises a fluorine-containing monomer. The second polymer comprises a monomer selected from the group consisting of acrylonitrile, methacrylonitrile, acrylates, methacrylates, and combinations thereof. The third polymer is selected from the group consisting of polyvinylpyrrolidone, polyalkylidene glycol, polyacrylamide, polyethylene glycol, and combinations thereof.05-27-2010
20130029210LEAD ACID STORAGE BATTERY - In a liquid-type lead acid storage battery in which charging is performed for a short time intermittently and high-rate discharging to load is performed in a partially charged state, there are used a positive electrode plate in which the utilization rate of a positive electrode activation substance is set to a range of 50% to 65%, and a negative electrode plate in which a carbonaceous electroconductive material and a bisphenol/aminobenzenesulfonic acid/formaldehyde condensate are added to the negative electrode activation substance, thereby improving the charge acceptance and the lifespan performance; and a separator whose surface disposed opposite the negative electrode plate is formed from a nonwoven fabric made of a material selected from glass, pulp, and polyolefin, is used as a separator; whereby the charge acceptance and the lifespan performance under PSOC are improved.01-31-2013
20130029207BATTERY WITH AUXILIARY ELECTRODE - A lithium-ion battery includes a case, an electrolyte, a positive electrode, a negative electrode, and an auxiliary electrode. The positive electrode includes a current collector and an active material. The negative electrode includes a current collector and an active material. The auxiliary electrode includes an active material. The electrolyte, positive electrode, and negative electrode are disposed within the case. The auxiliary electrode is configured to selectively couple to the negative electrode to irreversibly absorb lithium from the negative electrode.01-31-2013
20130029209Nickel Hydrogen Rechargeable Battery - A nickel hydrogen rechargeable battery has a positive electrode and a negative electrode. The positive electrode includes positive-electrode active material made of nickel hydroxide particles in which magnesium is dissolved, and the negative electrode includes rare earth-Mg—Ni-based hydrogen storage alloy powder. At least either one of the negative and positive electrodes includes as additive at least one selected from a group including zinc and zinc compounds. The content of the additive ranges from 0.2 to 1.5 part by weight per 100 parts by weight of hydrogen storage alloy in the negative electrode, and ranges from 0.3 to 1.5 part by weight per 100 parts by weight of positive-electrode active material in the positive electrode.01-31-2013
20130029208RECHARGEABLE BATTERY - A rechargeable battery case that prevents a short circuit of a cell by inducing bending of a case under a lateral/longitudinal compression condition in a specific manner. The rechargeable battery case includes an opening in the case through which an electrode assembly is inserted. A bottom portion is provided at an end of the case opposite to that of the opening. A front portion is connected to the bottom portion. A back portion is connected to the bottom portion and the front portion. A joint portion is arranged between the front, back and bottom portion. Further, a first area and a second area are disposed longitudinally in the front and back portions. The second area is on either side of the first area. The joint portion in the second area is thicker than the joint portion in the first area.01-31-2013
20120164518ELECTRONIC DEVICE WITH SLIDING BATTERY COVER - An electronic device with sliding battery cover includes a housing, a battery holder formed in the housing, a fixing element rotatably connected to the battery holder, and a battery cover slidably connected to the fixing element to cover or uncover the battery holder. The battery holder is for placing at least one battery. The fixing element includes at least one conductive elastic element. When the battery cover covers the battery holder, each conductive elastic element contacts an electrode of one of the at least one battery placed in the battery holder, and the battery cover is locked to the battery holder; when the battery cover is to uncover the battery holder, a force applied to the battery cover makes the battery cover slide along the fixing element to unlock the battery cover from the battery holder.06-28-2012
20100068615RESIN COMPOSITION FOR METAL PLATING, MOLDED ARTICLE THEREOF, AND METAL-PLATED MOLDED ARTICLE - A resin composition for metal plating provides a molded article exhibiting excellent metal plating adhesion strength and chemical resistance, while having excellent productivity. A metal-plated molded article can also be made from such a resin composition. The resin composition for metal plating includes 50-90% by mass of Component (A) and 10-50% by mass of Component (B), the total of Component (A) and Component (B) being 100% by mass, wherein Component (A) is a polypropylene resin, and Component (B) is a rubber-reinforced vinyl resin obtained by polymerizing a vinyl monomer in the presence of a rubber-like polymer, or a mixture of the rubber-reinforced vinyl resin and a (co)polymer of the vinyl monomer. The composition may further include 0.5-30 parts by mass of a compatibilizer (C) per 100 parts by mass of the total of Component (A) and Component (B). Component (B) is preferably a non-diene rubber-reinforced resin.03-18-2010
20100068617Lithium microbattery comprising an encapsulating layer and fabrication method - A lithium microbattery formed by a stack of thin layers on a substrate which comprises two current collectors, a positive electrode, a solid electrolyte layer, a negative electrode and an encapsulating layer. The encapsulating layer is formed by a protective layer made from polymer material on which a barrier layer is arranged. The protective layer comprises a copolymer formed from a homogeneous mixture of at least two photopolymerizable precursor materials, respectively acrylate-based and epoxide-based.03-18-2010
20090123833LITHIUM ION BATTERY - A lithium ion battery characterized in that a porous elastomer made of non-metal material is provided among the positive and negative electrodes groups, or between the electrodes groups and the inner wall of the shell and the elastomer is in the shape of sheet or stick. The thickness of the elastomer is 0.5 mm-5.0 mm, and the porosity is 10%-80%. The said battery can avoid effectively the expansion of the shell during the cycle of charge and discharge, and can be processed conveniently, and the cyclic life and safety property of the battery can be improved effectively.05-14-2009
20090123832NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery is disclosed. The non-aqueous electrolyte battery include a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The negative electrode includes an anode mixture layer having a volume density of 1.70 to 1.90 g/cm05-14-2009
20090123831CAP ASSEMBLY AND SECONDARY BATTERY USING THE SAME - A cap assembly and a secondary battery using the cap assembly, the cap assembly including: a cap-up having a groove; a PTC thermistor disposed in the groove; and inner components disposed below the cap-up. The inner components can include a vent disposed under the cap-up; a cap-down disposed under the vent; a sub-plate disposed under the cap-down; and an insulating vent disposed between the vent and the cap-down The secondary battery includes: an electrode assembly; a can containing the electrode assembly, having an opening at one side; and the cap assembly to seal the opening of the can.05-14-2009
20100003595Lithium Cell - A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS01-07-2010
20100129707ELECTROCHEMICAL CELL - An electrochemical cell has a first metal case, a second metal case and a gasket. The first metal case has a first disk portion and a first wall. The second metal case has a second disk portion and a second wall. The gasket is interposed between the first metal case and the second metal case. A bottom surface of the gasket is formed such that one of the outer edge and the inner edge of the bottom surface is spaced from the second disk portion by a predetermined distance. The bottom surface of the gasket inclines with respect to the second disk portion. When an end portion of the second wall is bent toward the first wall, the bottom surface of the gasket contacts the second disk portion.05-27-2010
20090305127MICROPOROUS MATERIAL AND A METHOD OF MAKING SAME - A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler, providing a processing plasticizer, adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.12-10-2009
20130071724ELECTRODE FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - According to one embodiment, there is provided an electrode for battery. The electrode includes a current collector and an active material layer provided on the current collector. The active material layer includes a first powder of a monoclinic titanium dioxide compound and a second powder a monoclinic titanium dioxide compound. The first powder has a minor-axis average dimension of primary particles in the range from 0.5 μm to 5 μm and a major-axis average dimension of primary particles in the range from 0.5 μm to 20 μm. The second powder has a minor-axis average dimension of primary particles in the range from 0.01 μm to 0.3 μm and a major-axis average dimension of primary particles in the range from 0.5 μm to 1 μm.03-21-2013
20130071725METHOD OF ENCAPSULATING AN ELECTRICAL ENERGY ACCUMULATION COMPONENT AND BATTERY - A method for encapsulating a device, such as an battery, having two opposite and parallel main faces and a peripheral edge, wherein one main face includes an electrical contact zone, includes the steps of retaining the device within an injection chamber of a mold and injecting encapsulation material into the injection chamber to overmold an encapsulation block on the device. The injection chamber is configured to hold a portion of the device, adjacent its peripheral edge, so as to center the device within the injection chamber. The mold includes centering structures that at least partially cover the electrical contact zone. Opposite positioning studs protrude into the injection chamber and bear on the opposite main faces of the device. The resulting packaged device includes an overmolded encapsulation block enveloping the device except for portions covered by the centering structure.03-21-2013
20130071723BATTERY COMPONENTS WITH LEACHABLE METAL IONS AND USES THEREOF - The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte.03-21-2013
20090092896BATTERY PACK - A battery pack including: a bare cell having first and second electrode terminals; a holder positioned on a first side of the bare cell, comprising first fastening portions; a protective circuit assembly seated in the holder; and a cover to cover the protective circuit assembly and the bare cell, the cover including second fastening portions. In the battery pack, the first and second fastening portions are interlocked inside of the cover.04-09-2009
20130059195ELECTRODE FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE - To provide an electrode for a power storage device, which has high reliability and can be miniaturized. To provide a power storage device including the electrode. In the electrode, a stress-relieving layer which relieves internal stress of an active material layer including a whisker is provided over a current collector. By the stress-relieving layer, deformation of the current collector can be suppressed and the productivity of the power storage device can be increased. In addition, the size of the power storage device can be reduced and the reliability thereof can be increased. Graphene may be formed so as to cover the active material layer including a whisker.03-07-2013
20130059196GALVANIC CELL - A galvanic cell is described, comprising an anode layer (03-07-2013
20110039149ALKALINE PRIMARY CELLS - A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The cathode further includes manganese.02-17-2011
20120308876RECHARGEABLE ELECTROCHEMICAL CELL - The present invention relates to a rechargeable electrochemical battery cell having a housing, a positive electrode, a negative electrode, and an electrolyte, the electrolyte containing sulfur dioxide and a conductive salt of the active metal of the cell. The total quantity of oxygen-containing compounds contained in the cell that are able to react with the sulfur dioxide, reducing the sulfur dioxide, is not more than 10 mMol per Ah theoretical capacitance of the cell.12-06-2012
20090269659INJECTION MOLDED ARTICLE AND METHOD FOR THE MANUFACTURE THEREOF - Injection molded articles having large, thin sections are prepared by injection molding of a composition that includes specific amounts of poly(arylene ether) and a rubber-modified polystyrene. The specific component amounts provide the composition with a shear thinning index of 6 to 17 measured at a temperature of 260 to 300° C. and shear rates of 100 and 10,000 second10-29-2009
20130065111APPARATUS AND METHOD FOR ENHANCING IMPREGNATION WITH ELECTROLYTE IN SECONDARY BATTERY - An apparatus for enhancing impregnation of the electrolyte in a secondary battery includes a tray in which at least one battery cell is received, and an oscillation and rotation unit capable of oscillating and rotating the tray simultaneously.03-14-2013
20130065110Bipolar Battery and Plate - A bipolar battery plate is utilized for production of a bipolar battery. The bipolar battery plate includes a frame, a substrate, first and second lead layers, and positive and negative active materials. The substrate includes insulative plastic with conductive particles homogeneously dispersed throughout the insulative plastic and exposed along surface of the substrate, the substrate positioned within the frame. The first lead layer is positioned on one side of the substrate, while the second lead layer is positioned on another side of the substrate. The first and second lead layer are electrically connected to each through the conductive particles. The positive active material is positioned on a surface of the first lead layer, and the negative active material positioned on a surface of the second lead layer.03-14-2013
20090233166LITHIUM-ION BATTERY WITH MEDIUM AND SMALL CAPACITY AND HIGH OUTPUT - A lithium-ion battery with medium and small capacity and high output, comprises a shell, a cell core and electrolyte located in the shell; the said cell core obtained by winding anode sheets, cathode sheets and separators between the anode sheets and cathode sheets, the said anode sheets coated with anode active material, the said cathode sheets coated with cathode active material; the said anode active material includes LiMn09-17-2009
20130164602ENERGY STORAGE DEVICE - An energy storage device including an active electrolyte, a first electrode and a second electrode is provided. The active electrolyte contains protons and ion pairs with a redox ability. The first electrode and the second electrode coexist in the active electrolyte and are separated from each other. The first electrode and the second electrode respectively include an active material producing a redox-reaction with the active electrolyte or an active material producing ion adsorption/desorption with the active electrolyte. The active electrolyte receives electrons from the first electrode and/or the second electrode so as to perform a redox-reaction for charge storage.06-27-2013
20130164603SECONDARY BATTERY - The object is to provide a secondary battery with higher performance, and especially to provide a secondary battery having low impedance. An exemplary embodiment of the invention is a secondary battery, comprising an electrode assembly in which a positive electrode and a negative electrode are oppositely disposed, an electrolyte liquid, and a package which encloses the electrode assembly and the electrolyte liquid inside; wherein the negative electrode is formed by binding a negative electrode active substance to a negative electrode collector with a negative electrode binder; and wherein the electrolyte liquid comprises a fluorine-containing cyclic ether compound.06-27-2013
20130164604SECONDARY BATTERY - An objection is to provide a high performance secondary battery having good flame retardancy and cycle properties. The present exemplary embodiment provides a secondary battery comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode is formed by binding a negative electrode active substance comprising a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with a negative electrode binder, and the electrolyte liquid comprises a supporting salt and an electrolytic solvent, the electrolytic solvent comprising at least one phosphate ester compound selected from phosphite esters, phosphonate esters and bisphosphonate esters.06-27-2013
20130164605SECONDARY BATTERY - An object of the present invention is to provide a secondary battery in which the decomposition of an electrolyte liquid is suppressed and the generation of a gas is reduced, even in the case of using a laminate film as a package. The present exemplary embodiment is a secondary battery of a stacked laminate type comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode is made by binding a negative electrode active substance containing a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions, and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with at least one selected from polyimides and polyamideimides; and the electrolyte liquid comprises acrylonitrile or an acrylonitrile compound being an acrylonitrile derivative.06-27-2013
20120115019ENERGY STORAGE MODULE - Provided is an energy storage module including a cell structure having at least one energy storage cell and a package structure which covers the cell structure to package the cell structure, wherein the package structure includes a metal foil and a protective coating layer which covers the metal foil and is made of at least one of a silicon-based material and a fluorine-based material.05-10-2012
20100086842BATTERY CELL ASSEMBLY AND METHOD FOR ASSEMBLING THE BATTERY CELL ASSEMBLY - A battery cell assembly and a method for assembling the battery cell assembly are provided. The battery cell assembly includes first and second rectangular ring-shaped panel members and at least one battery cell. The first and second rectangular ring-shaped panel members are configured to easily couple together to hold the battery cell therebetween.04-08-2010
20090142659BATTERY ELECTRODE STRUCTURE - An electrode structure for a battery having an electrode tab coupled to a recess within an electrode lead. The tab can be coupled to the recess via hot-pressure treatment or mechanical compression. The coupling can be further reinforced by known welding techniques. The resulting electrode structure is capable of providing a battery with lowered internal resistance, enhanced safety and electrical properties.06-04-2009
20100040944BATTERY WITH CONTAINER FOR ALKALINE SOLUTION - A container for an alkaline solution comprising a polysulfone resin and an acrylate core-shell rubber impact modifier and optionally a polycarbonate. The container can be fabricated by injection molding or thermoforming from an extruded sheet. The container is well suited as a case for aqueous KOH electrolyte batteries.02-18-2010
20100285352ELECTROCHEMICAL CELLS WITH TABS - The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.11-11-2010
20110281153BATTERY - A battery includes at least one positive pole film, at least one negative pole film, at least one isolation membrane, a positive pole clamp, a negative pole clamp, a positive conducting pole, a negative conducting pole, a shell and an electrolyte. The positive pole film includes a positive pole material film and a bare aluminum zone, and the negative pole film includes a negative pole material film and a bare copper zone. The negative pole material film overlaps the positive pole material film, and the isolation membrane is disposed between the pole films to isolate the negative pole material film from the positive pole material film. The positive pole clamp clamps the bare aluminum zone, and the negative pole clamp clamps the bare copper zone. The positive conducting pole is welded to the positive pole clamp, and the negative conducting pole is welded to the negative pole clamp.11-17-2011
20110281154MATERIALS FOR ELECTROCHEMICAL DEVICE SAFETY - An electrochemical device includes a thermally-triggered intumescent material or a gas-triggered intumescent material. Such devices prevent or minimize short circuits in a device that could lead to thermal run-away. Such devices may include batteries or supercapacitors.11-17-2011
20110045339IN-SITU PORE GENERATION IN LEAD-ACID BATTERY SEPARATOR - A microporous polyethylene battery separator material (02-24-2011
20110135999RECHARGEABLE BATTERY - A rechargeable battery includes a case; an electrode assembly housed in the case, wherein the electrode assembly includes a first electrode, a second electrode and a separator between the first electrode and the second electrode; and a support plate between the electrode assembly and the case, the support plate having a first conductive plate electrically coupled to the electrode assembly; wherein an insulation layer is between the first conductive plate and the electrode assembly and wherein an adhesive section is between the insulation layer and the first conductive plate.06-09-2011
20110135998Secondary Battery - A secondary battery includes a case comprising a body having a cavity and a cover sealed to the body; and an electrode assembly in the cavity, the electrode assembly including a first electrode plate having a coated portion coated with a first active material and an uncoated portion not coated with the first active material; a second electrode plate having a coated portion coated with a second active material; and a separator between the first electrode plate and the second electrode plate, wherein the first electrode plate, the second electrode plate and the separator are stacked together, and wherein the first electrode plate and the second electrode plate have substantially the same surface area.06-09-2011
20110318633RECHARGEABLE BATTERY - A rechargeable battery, including a first electrode including a first metal plate, a first coated region where a first material is applied onto the first metal plate, and a first uncoated region, the first metal plate having a first thickness in the first uncoated region and a second thickness in the first coated region, the first thickness being greater than the second thickness, a second electrode including a second metal plate, a second coated region where a second material is applied onto the second metal plate, and a second uncoated region, a separator between the first electrode and the second electrode, a case housing the first electrode, the separator, and the second electrode, and a current collecting plate connected to the first uncoated region through a side thereof.12-29-2011
20110287302SECONDARY BATTERY - A secondary battery is disclosed. In one embodiment, the battery includes i) an electrode assembly, ii) an electrolyte, iii) a tape attached to at least part of an outer surface of the electrode assembly and iv) a case accommodating the electrode assembly, electrolyte and tape. The tape includes a base layer, and wherein at least a portion of the base layer is configured to exhibit an adhesive property when contacting the electrolyte so as to contact an inner surface of the case.11-24-2011
20110287307Alkaline Electrochemical Cell with a Blended Zinc Powder - An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in their particle size distribution. Particle characteristics such as roughness and elongation are used to selected groups of both powders that are combined to produce the blended zinc powder. The blended zinc powders enable battery manufacturers to maximize the cell's run time while minimizing the cost of the zinc.11-24-2011
20110287306BATTERY LOADING AND UNLOADING MECHANISM - In a battery loading and unloading mechanism, a battery formed in a flat rectangular parallelepiped and having an almost square main surface is loaded and unloaded to and from a device. The battery is formed with projecting portions at longitudinal both ends of a back surface thereof and along the back surface, whereby the battery can be prevented from being erroneously inserted into the device. The projecting portion has an inclined surface acutely inclined with respect to the back surface, and when the battery is unloaded from the device, unloading of the battery from the device is accelerated by the inclined surface undergoing contact pressure of the retaining means. The device is formed with a notched portion which is adapted to expose the other projecting portion of the battery when the battery is loaded, thereby facilitating unloading of the battery.11-24-2011
20110287305ELECTROCHEMICAL CELL, COMPONENTS THEREOF, AND METHODS OF MAKING AND USING SAME - An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.11-24-2011
20110287304RECHARGEABLE ELECTROCHEMICAL BATTERY CELL - Rechargeable lithium battery cell having a housing, a positive electrode, a negative electrode and an electrolyte containing a conductive salt, wherein the electrolyte is based on SO2 and the positive electrode contains an active material in the composition LixM′yM″z(XO4)aFb, wherein 11-24-2011
20110287303Electrode assembly, rechargeable battery including the same, and method of manufacturing an electrode thereof - An electrode assembly, a rechargeable battery including the same, and a method of manufacturing an electrode thereof, the electrode assembly including a first electrode, the first electrode including a mesh-type first electrode current collector having a plurality of pores, and a first electrode active material layer adhered to the first electrode current collector, wherein an edge active material layer protrudes from a side of the first current collector; a second electrode including a second electrode current collector, and a second electrode active material layer adhered to the second electrode current collector; and a separator interposed between the first and second electrodes.11-24-2011
20110143192NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY USING THE SAME - A negative electrode active material which is low-cost, and has a high energy density, and a lithium ion secondary battery using such a negative electrode active material are provided. The lithium ion secondary battery which is low-cost, and has both a high energy density and high reliability can be obtained by using a negative electrode active material made of metal composite oxide represented by the formula A06-16-2011
20090269658Grid for Lead-Acid Battery with Electroconductive Polymer Coating - The present invention provides a method for manufacture of a grid structure for use in lead acid batteries using a substrate having low density and low melting point, the method comprising coating the substrate material with a first metal layer and a subsequent metal layer of lead/lead alloy and electrodepositing an electroconductive polymer to form a protective layer thereon.10-29-2009
20080274401Oxygen gas sensor - A gas sensor includes an electrochemical cell. The electrochemical cell includes a body defining a cavity to contain a predetermined volume of electrolyte solution. The plurality of electrodes is disposed within the cavity and comprises an electrically conductive material that is substantially free of hazardous material. An energy module is coupled to the plurality of electrodes. The energy module provides a bias voltage suitable to reduce gas diffused in the electrolyte solution. An electrical interface is coupled to the energy module. The electrical interface has an electrical and mechanical form-factor to enable the gas sensor to replace a lead-based anode galvanic oxygen gas sensor as a drop-in replacement.11-06-2008
20110217588SECONDARY BATTERY AND METHOD OF FABRICATING OF THE SECONDARY BATTERY - Disclosed is a secondary battery which includes an electrode assembly comprising inner stacked electrodes and at least one outermost electrode positioned on at least one end of the inner stacked electrodes; and a case configured to house the electrode assembly. Herein, the at least one outermost electrode comprise an inactive material.09-08-2011
20090098453Anode of lithium battery, method for fabricating the same, and lithium battery using the same - An anode of a lithium battery includes a carbon nanotube film, the carbon nanotube film includes a plurality of tangled carbon nanotubes. A method for fabricating an anode of a lithium battery, the method includes the steps of:(a) providing a plurality of carbon nanotubes; (b) adding the plurality of carbon nanotubes to a solvent to get a carbon nanotube floccule structure in the solvent; and (c) separating the carbon nanotube floccule structure from the solvent, shaping the separated carbon nanotube floccule structure into a carbon nanotube film, and thereby, achieving the anode.04-16-2009
20090098452BATTERY CASE - The present invention provides a battery including a case and a battery cell accommodated in the case. The case is divided in a thicknesswise direction of the battery cell into a first case and a second case. The first and second cases have joint portions formed along peripheries thereof for jointing with each other. The joint portion of one of the first and second cases has a joining thin wall formed to extend along a periphery thereof and project in the thicknesswise direction. The joint portion of the other of the first and second cases has a joining recess formed to extend along a periphery thereof for receiving the joining thin wall inserted therein in a state that the joint portions of the first and second cases joint with each other. The joining thin wall and the joining recess in which the joining thin wall is inserted while the joint portions of the first and second cases joint with each other are joined together by welding. The other case has a projecting wall formed at a location of an outer face thereof positioned on the outer side of the joining recess in such a manner as to extend along the joining recess.04-16-2009
20100136418SECONDARY BATTERY - Disclosed is a pack type secondary battery that can be assembled by a simple process. The secondary battery comprises: a bare cell; a protection circuit module including a circuit board and a supporting member to combine the circuit board with the bare cell; and a top case covering the circuit board of the protection circuit module, where the supporting member of the protection circuit module is provided with a first coupling part and the top case is provided with a second coupling part combined with the first coupling part and the first coupling part of the supporting member is combined with the second coupling part of the top case by an interference fit method.06-03-2010
20100167118HIGH-DISCHARGE-RATE LITHIUM ION BATTERY - The present invention provides for a lithium ion battery and process for creating such, comprising higher binder to carbon conductor ratios than presently used in the industry. The battery is characterized by much lower interfacial resistances at the anode and cathode as a result of initially mixing a carbon conductor with a binder, then with the active material. Further improvements in cycleability can also be realized by first mixing the carbon conductor with the active material first and then adding the binder.07-01-2010
20100055560SECONDARY BATTERY - Disclosed is a secondary battery that can improve coupling strength between a bare cell and a protection circuit module by combining a projected portion of a bare cell with a hole of a lead plate, and to simplify manufacturing process by removing welding process.03-04-2010
20110171517TEARABLE BATTERY TUBING AND BATTERY WRAPPED WITH THE SAME - A battery tubing according to the present invention is provided. The battery tubing is hollow and shrinkable. The battery tubing has at least one perforation line and a user can easily tear the battery tubing along the perforation line. The present invention further provides a battery wrapped with the above battery tubing.07-14-2011
20100086844Cell Thermal Runaway Propagation Resistance Using Dual Intumescent Material Layers - A means for inhibiting the propagation of thermal runaway within a plurality of batteries is provided, wherein the means is comprised of a pair of intumescent material layers coating the battery casing, or at least a portion thereof.04-08-2010
20100086843LITHIUM ION BATTERY BEFORE PRE-DOPING AND LITHIUM ION BATTERY MANUFACTURING METHOD - A lithium ion battery before pre-doping includes: a negative electrode member before initial charge having a negative active material before initial charge; a positive electrode member; an electrolyte body; a battery case; and a lithium ion supply body formed by a lithium compound capable of emitting lithium ions when positive voltage is applied to it. The lithium ion supply body is arranged so that it is at least partially in contact with the inner exposed surface of the battery case. The negative electrode member before pre-doping is electrically insulated from the metal case member. The lithium ion supply body and the negative active material before initial charge are respectively in contact with the electrolyte body.04-08-2010
20100129706DEVICE WITH AT LEAST ONE ACCUMULATOR CELL - In the case of a device with at least one accumulator cell having at least one electrode assembly which is disposed in an elastic sheath, the accumulator cell is equipped with an apparatus having at least two retaining elements, which are connected to each other. The accumulator cell is then held at associated hold points by the retaining elements.05-27-2010
20120107674SECONDARY BATTERY HAVING ANTI-SCATTERING MECHANISM - A housing for containing electrode assemblies and an electrolyte includes a cover 05-03-2012
20120107673SECONDARY BATTERY - To obtain a secondary battery that surely positions and fixes a laminated type of electrode group by effectively curbing lateral deviation and vertical deviation, in secondary batteries RB05-03-2012
20120107672Electrode With Interconnection Design for Miniature Electrochemical Cells and Methods of Making - Miniature electrodes and electrochemical cells are disclosed. Such electrodes are made from forming an electrode mixture onto a current collector and distal end of a feedthrough pin such that the current collector and distal end of the feedthrough pin is encapsulated. The methods and electrode assemblies disclosed herein allow such electrode assemblies to be made free from the step of directly attaching a formed electrode to a feedthrough pin and thus simplifying assembly and decreasing size.05-03-2012
20090263710AA ALKALINE BATTERY - In an AA alkaline battery, an opening of a battery case is sealed by a gasket. The battery case houses a positive electrode, a negative electrode, a separator, and an alkaline electrolyte. The positive electrode contains manganese dioxide having a potential of higher than or equal to 270 mV measured by using mercurous oxide (Hg/HgO) as a reference electrode in 40 wt % of a potassium hydroxide aqueous solution. The negative electrode contains 4.0 g or more of zinc. The gasket has a hydrogen gas permeability coefficient, per one gasket, in the range from 6×1010-22-2009
20130216896POUCH TYPE BATTERY - A pouch type battery that can protect a metal layer exposed to ends of a pouch using a photocurable adhesive and can fix adhesion parts to the pouch, thereby achieving a simplified, automated process, instead of a manually taping process. The pouch type battery includes an electrode assembly including a first electrode plate, a second electrode plate and a separator, a pouch accommodating the electrode assembly and having adhesion parts formed by adhering opposing edges, and a photocurable adhesive applied to the adhesion parts of the pouch and sides of the pouch.08-22-2013
20110200869LITHIUM SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - An electrode group 08-18-2011
20090136840SECONDARY BATTERY - A secondary battery comprising an electrode assembly including: a first electrode plate connected to a first electrode tab, a second electrode plate connected to a second electrode tab, and a separator disposed therebetween; a can having an opening, to house the electrode assembly; and a cap assembly to seal the opening. The first electrode tab has a reinforcement portion. The first electrode tab has a welding portion connected to the cap assembly and a bent portion formed in the reinforcement portion, which is thicker than the welding portion.05-28-2009
20110171519METHOD FOR PRODUCING DIFLUOROPHOSPHATE, NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a simple method for producing a difluorophosphate from a source material, the difluorophosphate being useful as additives for nonaqueous electrolyte solutions for secondary batteries. In the method, a source material containing a carbonate and/or a borate is allowed to react with a source gas which contains P and F and which may further contain O as required. The source material may contain lithium carbonate. The source gas may be produced by decomposing LiPF07-14-2011
20110171518Three dimensional Battery Architectures and Methods of Making Same - A three-dimensional electrode structure for use in a battery comprising a porous three-dimensional substrate formed from a first electrically conductive material, an ion-conducting dielectric material disposed on the porous three dimensional substrate, and a second electrically conductive material disposed on the ion-conducting dielectric material, wherein the ion-conducting dielectric material separates the first electrically conductive material from the second electrically conductive material.07-14-2011
20080206632BATTERY SEPARATOR - An alkaline battery includes a housing, a cathode disposed within the housing, an anode disposed within the housing, a separator disposed between the anode and the cathode, and an alkaline electrolyte contacting the anode and the cathode. The separator can include a tube having at an inner tube layer and an outer tube layer. The inner tube layer is disposed radially inward from the outer tube layer and no portion of the inner tube layer is disposed radially outward from any portion of the outer tube layer. The separator can also include a disc positioned at one end of the tube to create a closed end of the separator.08-28-2008
20090104519NEGATIVE ELECTRODE FOR LITHIUM RECHARGEABLE BATTERY AND LITHIUM RECHARGEABLE BATTERY ADOPTING THE SAME - A negative electrode for a lithium rechargeable battery comprising: active material layers including metal-carbon combination active material particles including at least one active material selected from metal or metal oxide and carbonaceous active material, soft graphite particles, and a binder for binding the metal-carbon combination active material particles and the soft graphite particles; and a current collector on which surface the active material layers are stacked, wherein the soft graphite particles have a pellet density of 1.6˜1.9 g/cc when a pellet is formed at a press pressure of 1 ton/cm2, and the lithium rechargeable battery adopting the negative electrode.04-23-2009
20090291363BATTERY COVER MECHANISM - A battery cover mechanism used in a portable electronic device includes a housing defining a receiving groove therein for receiving a battery, a cover mounted an elastic member, the elastic member defines a locking space, the housing has a protrusion formed thereon, the protrusion is latched with the locking space to latch the cover with the housing.11-26-2009
20130216897CATHODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode for a lithium secondary battery and a lithium secondary battery comprising the same. The cathode for a lithium secondary battery may include a current collector, a first composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the current collector, and a second composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the first composite layer. A specific surface area of the olivine-type lithium iron phosphate cathode active material powder in the second composite layer may be 0.8 times or less that of the olivine-type lithium iron phosphate cathode active material powder in the first composite layer. The cathode for a lithium secondary battery has excellent stability, high energy density, and improved cycle life characteristics.08-22-2013
20100136417BATTERY COVER LATCH ASSEMBLY - A battery cover latch assembly comprised a battery housing member and a battery cover. The battery housing member includes a first sidewall and a second sidewall opposite to the second sidewall. The battery housing member has two first guiding grooves and two first guiding poles. The first guiding grooves are respectively defined in the first sidewall and the second sidewall. The first guiding poles are respectively protruding from the first sidewall and the second sidewall. The battery cover includes two opposite sliding plates, each sliding plate hays a second guiding groove defined therein and a second guiding pole protruding therefrom. The first guiding poles are slidably accommodated in the second guiding grooves, the second guiding poles are slidably accommodated in the first guiding grooves, such that the battery cover is slidably mounted to the battery housing member.06-03-2010
20100285350ELECTROLYTIC CELL - An electrolytic cell has an insulating body, at least one metal plate, at least one carbon plate, an anode terminal connected electrically to one of at least one carbon plate and a cathode terminal connected electrically to one of at least one metal plate. The insulating body has a base and a cover. The base has two sidewalls, an opening, at least one chamber and at least one through hole. The at least one chamber is formed in the base. The at least one through hole is formed through one or all of the sidewalls. The at least one metal plate is mounted in the cover. The at least one carbon plate respectively covers the at least one through hole. Due to the carbon plate allows the air go through the carbon plate, the air can be as a depolarizer.11-11-2010
20080241671POWER DISCONNECTION APPARATUS FOR SOFT-SHELL LI ION BATTERY - A power disconnection apparatus includes a soft-shell Li ion battery and a power disconnection device. The soft-shell Li ion battery includes anode pin and a cathode pin and a soft shell enclosing the soft-shell Li ion battery. The power disconnection device includes a panel attaching to the surface of the shell of the soft-shell Li ion battery and a separation unit arranged at topside of the panel and corresponding to one of the anode pin and the cathode pin. The shell has expansion when the soft-shell Li ion battery is over-charged and the panel is move away from the soft-shell Li ion battery. Therefore, the separation unit disconnects power to the anode pin or the cathode pin.10-02-2008
20110200868THIN-FILM BATTERIES WITH POLYMER AND LiPON ELECTROLYTE LAYERS AND METHOD - A method and apparatus for making thin-film batteries having composite multi-layered electrolytes with soft electrolyte between hard electrolyte covering the negative and/or positive electrode, and the resulting batteries. In some embodiments, foil-core cathode sheets each having a cathode material (e.g., LiCoO08-18-2011
20080292953SECONDARY BATTERY WITH NON-AQUEOUS SOLUTION - Disclosed herein is a non-aqueous solvent secondary battery, which has excellent long-term reliability and high thermal-resistance through the improved thermal resistance of the collectors. The non-aqueous solvent secondary battery comprises a cathode electrically coupled to a collector, an anode electrically coupled to a collector and an electrolyte layer interposed between the cathode and anode. The cathode, anode and electrolyte layer are stacked upon one another. The collector of the cathode side comprises an alloy-based metal foil with at least a portion of the collector of the cathode side having a Pitting Resistance Equivalent (PRE) of 45 or more.11-27-2008
20080292954LITHIUM POLYMER BATTERY - A lithium polymer battery where the corrosion or the electrical short resulting from contact of the metal film of the cut region of external material with the connecting lead or the terminal of the adjacent protective circuit cover can be prevented. The lithium polymer battery comprises: a chargeable and dischargeable bare cell; a protective circuit cover installed on one side surface of the bare cell so as to be electrically coupled to the bare cell; and a holder cap installed between the protective circuit cover and the bare cell so as to block contact between the bare cell and a terminal of the protective circuit cover.11-27-2008
20080213654ELECTROCHEMICAL CELL - An alkaline electrochemical cell having a gelled anode including zinc powder and a rheological modifier is disclosed. The rheological modifier reduces at least one of the gelled anode's key rheological parameters thereby enabling transportation and distribution of the gelled anode within a battery manufacturing facility.09-04-2008
20110206982LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery is provided. The lithium ion secondary battery generally comprises an electrode assembly, a container for accommodating the electrode assembly; and an electrolyte. The electrode assembly comprises two electrodes having opposite polarities and a separator. The separator comprises a porous membrane comprising clusters of ceramic particles. The porous membrane is formed by bonding the particle clusters with a binder. Each particle cluster is formed either by sintering or by dissolving and re-crystallizing all or a portion of the ceramic particles. The ceramic particles comprise a ceramic material having a band gap. Each particle cluster may have the shape of a grape bunch or a lamina, and may be formed by laminating scale or flake shaped ceramic particles.08-25-2011
20100143789Secondary battery - Disclosed is a secondary battery that enhances the safety and reliability thereof by preventing the danger of ignition and explosion when it is compressed or damaged due to an external impact. The secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a can accommodating the electrode assembly; and a cap assembly covering a top opening of the can. The cap assembly includes a cap plate having a first hole at a central portion thereof and electrically connected to a first electrode tab protruding from the first electrode plate, an insulation plate located under the cap plate, a terminal plate located under the insulation plate, an electrode terminal penetrating the cap plate, the insulation plate, and the terminal plate and electrically connected to a second electrode tab protruding from the second electrode plate, and a short-circuit plate located under the cap plate. The short-circuit plate is disposed in a manner that the short-circuit plate contacts the terminal plate or the second electrode tab whenever a distorting pressure is applied to the secondary battery.06-10-2010
20100143788Secondary battery - A secondary battery including a bare cell, a protection circuit module electrically coupled to the bare cell, and a holder between the bare cell and the protection circuit module, wherein the protection circuit module includes a flexible printed circuit board having an upper and a lower surface, a charging/discharging terminal on the upper surface of the flexible printed circuit board and a protection circuit unit on the lower surface of the flexible printed circuit board opposite to the charging/discharging terminal, and the holder is disposed on the protection circuit unit on the lower surface of the flexible printed circuit board.06-10-2010
20120034510BATTERY AND METHOD FOR PRODUCING THE SAME - A method for producing a battery includes forming a space by expanding a liquid housing portion, the liquid housing portion being present at one end of an outer package that houses a battery element, through supply of gas from an opening portion formed at the other end of the outer package; injecting an electrolytic solution from the opening portion to store the electrolytic solution in the space of the liquid housing portion; degassing the outer package through the opening portion in a vacuum state; sealing the opening portion; and impregnating the electrolytic solution into the battery element.02-09-2012
20120196176ELECTRODE COMPOSITE MATERIAL OF LITHIUM ION BATTERY AND LITHIUM ION BATTERY USING THE SAME - An electrode composite material includes an individual electrode active material particle and a protective film coated on a surface of the particle. A composition of the protective film is Al08-02-2012
20120196177ELECTRODE OF LITHIUM ION BATTERY AND LITHIUM ION BATTERY USING THE SAME - An electrode of a lithium ion battery includes a current collector, an electrode material layer disposed on a top surface of the current collector, and a protective film located on a top surface of the electrode material layer. A composition of the protective film is at least one of Al08-02-2012
20090297941Type of secondary battery - This invention describes a type of secondary batteries. The bottom of the secondary battery is installed with a safety device that includes a conductive current interrupting device (CID) and a support component. In installing the safety device on the bottoms of the batteries, the batteries' manufacturing processes are simplified, their production costs are lowered, and the space utilization inside of the battery is increased. In addition, the battery manufacturing process can use sealed or unsealed methods.12-03-2009
20090004559CAP ASSEMBLY FOR A HIGH CURRENT CAPACITY ENERGY DELIVERY DEVICE - A cap assembly for use in an electrochemical cell. The cap assembly includes a tab collection post, a core insert, and at least one current collecting tab connected at one end to an electrode foil in the electrochemical cell, and horizontally connected at the other end to the tab collection post and the core insert. The at least one current collecting tab is disposed between and welded with the tab collection post and the core insert. The cap assembly also includes a shock absorber disposed around the core insert.01-01-2009
20090325061SECONDARY BATTERY - A secondary battery including: an anode including a positive electrode active material; a cathode including a negative electrode active material; a separator interposed between the anode and the cathode; and a non-aqueous electrolyte. The positive electrode active material includes a lithium nickel oxide, and the negative electrode active material includes at least one silicon compound selected from the group consisting of silicon, a silicon oxide, and a silicon alloy.12-31-2009
20110223470Composite Current Collector for Electrochemical Cell - Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-free and lead-free alkaline zinc electrodes.09-15-2011
20090047575CELL AND BATTERY INCORPORATING THE CELL - Disclosed is a cell with a power-generating element and an outer package. The power-generating element includes a unit cell layer including a first electrode, a second electrode and an electrolyte layer disposed between the first and second electrodes. In the first electrode, a first collector is provided with one of a positive electrode active material layer and a negative electrode active material layer. In the second electrode, a second collector is provided with the other one of the positive and negative electrode active material layers. The first and second collectors have thicknesses such that when a conductor from outside penetrates at least two cells and a short circuit is formed between two cells via the conductor, shorted portions of the first and second collectors are fused by the heat generated by the current before the temperature of the cells reaches a predetermined value so that the short circuit is blocked.02-19-2009
20080241672NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY AND METHOD FOR PREPARING THE SAME - To provide a secondary battery that is capable of shortening injecting time for injecting an electrolytic solution, and infiltrating the electrolytic solution uniformly, during a process for preparing the secondary battery. Also, to provide the secondary battery in which discordance of layers of positive-electrode plates, negative-electrode plates, and separators does not easily occur during a process for laminating them and the following process.10-02-2008
20110143191Secondary battery - A secondary battery including a can for accommodating an electrode assembly, the can having an opening at one side thereof; a cap assembly for sealing the opening of the can; an insulation case between the electrode assembly and the cap assembly, the insulation case being disposed in an upper portion of the can; and an insertion guide protruding from an outer surface of the insulation case, and having a lower portion facing the can, the lower portion being inclined at a predetermined angle relative to the outer surface the insulation case.06-16-2011
20120244418LIQUID-METAL NEGATIVE ELECTRODE FOR LITHIUM-ION BATTERIES - One embodiment includes a liquid-metal alloy negative electrode for a lithium-ion battery.09-27-2012
20110229755HYDROGEN STORAGE ALLOY FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY AND ALKALINE STORAGE BATTERY SYSTEM EACH INCLUDING NEGATIVE ELECTRODE HAVING THE ALLOY - To provide a hydrogen storage alloy for an alkaline storage battery that improves output power by pulverization of the alloy in the initial stage of partial charge and discharge cycles and that maintains its surface condition to improve the amount of lifetime work (Wh), and an alkaline storage battery and battery system. A hydrogen storage alloy for an alkaline storage battery includes a composition expressed by La09-22-2011
20100028770Electrode Assembly Having Electrode Tabs of the Same Size in Joint Portion Thereof and Electrochemical Cell Containing the Same - Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, electrode leads are located at one-side ends of the stacked electrode tabs such that the electrode leads are electrically connected to the electrode tabs, and protruding lengths of the electrode tabs are gradually increased according to the distances between the electrode leads and the electrode tabs, whereby the lengths of the electrode tabs at joint portions between the electrode tabs and the electrode leads are the same. Also disclosed is an electrochemical cell including the electrode assembly.02-04-2010
20100003594POUCH-TYPE LITHIUM SECONDARY BATTERY - A pouch-type lithium secondary battery including: an electrode assembly; and a case to house the electrode assembly, including first and second case portions. The first case portion includes a receiving part to receive the electrode assembly, and a wing part extending from the receiving part. The second case portion includes an outer part that is sealed to the wing part, and an extension part that extends from the outer part and is folded toward the wing part.01-07-2010
20090053595ALKALINE DRY BATTERY - An alkaline dry battery of this invention includes: a positive electrode including at least one of a manganese dioxide powder and a nickel oxyhydroxide powder; a negative electrode including a zinc alloy powder; a separator interposed between the positive electrode and the negative electrode; an alkaline electrolyte; and a battery case for housing the positive electrode, negative electrode, the separator, and the alkaline electrolyte. The negative electrode further includes a surfactant that adsorbs to a surface of the zinc alloy powder during a non-discharge period and promptly desorbs from the surface of the zinc alloy powder upon start of discharge without impeding ion transfer in the alkaline electrolyte.02-26-2009
20090053593BATTERY - A battery capable of suppressing the swollenness and improving the capacity and the like is provided. The battery includes a spirally wound electrode body (02-26-2009
20080292955BATTERY PACK - A battery pack including: a bare cell; a holder disposed at an end of the bare cell, having a connection groove on a side surface thereof; a protection circuit board seated in the holder; and an outer case disposed upon a side of the bare cell, having a connection protrusion mated with the connection groove, to secure the holder. Another battery pack includes: a bare cell including an electrode assembly and an cell case to accommodate the electrode assembly, including an outer casing and a inner casing, the cell case having a connection protrusion disposed at an edge of at least one of the outer and inner casings; a holder disposed at an end of the bare cell, having a connection groove to mate with the connection protrusion and thereby secure the holder; and a protection circuit board seated in the holder.11-27-2008
20090197163High rate primary lithium battery with solid cathode - A safe high rate primary lithium battery with solid cathode and a lithium anode is provided, having a high rate of discharge and higher energy density due to the lithiated cathode materials contained therein.08-06-2009
20110223469NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A positive electrode active material with least part of a surface coated with a surface treatment layer composed of a phosphate compound. The phosphate compound contains at least one element selected from the group consisting of neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.09-15-2011
20090214945ELECTROCHEMICAL DEVICE AND METHOD OF MANUFACTURING ELECTROCHEMICAL DEVICE - An electrochemical device 08-27-2009
20090220856Composite compound with mixed crystalline structure - A composite lithium compound having a mixed crystalline structure is provided. Such compound can be formed by heating a lithium, iron, phosphorous and carbon mixed compound with another metal compound together. The resulting mixed metal crystal can exhibit superior electrical property and is a better cathode material for lithium secondary batteries.09-03-2009
20090220855Battery - An alkaline battery can include a housing, a cathode within the housing, an anode, a separator between the anode and the cathode, and an alkaline electrolyte contacting the anode and the cathode. The cathode defines an anode cavity and the anode is deposited within the anode cavity. The cathode has a top surface adjacent to the anode cavity. The battery can include a protective layer deposited on the top surface of the cathode and/or a gel plug deposited over the anode. The protective layer can include a PVA layer coated over the top surface of the cathode.09-03-2009
20090117457Electrochemical Cells And Method Of Manufacturing Same - An electrochemical cell comprising a casing, an anode comprising anode active material, a cathode, and an electrolyte solution activating the cathode and the anode is described. In one embodiment, the cathode is comprised of a first current collector, first and second sheets of a first cathode active material in contact with the first current collector, a second current collector, third and forth sheets of the first cathode active material in contact with the second current collector, and a first sheet of a second cathode active material in non-adherent and congruent contact with the second and third sheets of the first cathode active material.05-07-2009
20090239140BATTERY COVER LATCH MECHANISM AND PORTABLE ELECTRONIC DEVICE USING SAME - A battery cover latch mechanism (09-24-2009
20090246618Insert molded electrode grid - The present disclosure is directed to an electrode grid for a battery. The electrode grid may include at least one active material retaining segment, the active material retaining segment including one or more channels. The at least one active material retaining segment may be formed of at least one of carbon foam and graphite foam. In addition, the electrode grid may include a conductive material deposited within the one or more channels.10-01-2009
20090280402BATTERY COVER LATCH MECHANISM AND PORTABLE ELECTRONIC DEVICE USING SAME - A battery cover latch mechanism (11-12-2009
20130122354NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - It is an object to provide a nonaqueous electrolyte secondary battery whose battery characteristics can be considerably improved by considerably improving the dispersibility of a carbon conductive agent and forming a good conductive network, and a method for producing the nonaqueous electrolyte secondary battery. A polyvinylpyrrolidone polymer serving as a dispersant and a polyglycerin-condensed ricinoleic acid ester are mixed with N-methyl-2-pyrrolidone serving as a dispersion medium, and then acetylene black is added thereto to prepare a carbon slurry. Subsequently, a positive electrode active material and a binder are mixed with the carbon slurry to prepare a positive electrode active material slurry. A positive electrode 05-16-2013
20100015521Rechargeable battery and associated methods - A rechargeable battery and associated methods, the rechargeable battery including an anode, a cathode, wherein the cathode includes a ternary cathode-active material, a separator interposed between the cathode and the anode, an electrolyte, and a housing enclosing the electrolyte, the anode, and the cathode, wherein the electrolyte includes a lithium salt, a non-aqueous organic solvent, about 0.5 weight % to about 5 weight % of succinonitrile, and at least one of about 1 weight % to about 10 weight % of halogenated ethylene carbonate and about 1 weight % to about 5 weight % of vinyl ethylene carbonate.01-21-2010
20120141864ELECTROCHEMICAL CELLS WITH TABS - The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.06-07-2012
20120034512LITHIUM ALLOY-CARBON COMPOSITE NANOFIBERS AND METHODS OF FABRICATION - A carbon/nanoparticle nanofiber includes a carbon base structure and a plurality of nanoparticles that include a lithium alloy or a lithium alloy precursor. One or more nanofibers may be formed into a nonwoven fabric. The fabric may be utilized as an electrode, such as for example in a battery. The carbon/nanoparticle composite nanofiber may be fabricated by forming a polymer/nanoparticle nanofiber, such as for example by a spinning technique, and carbonizing the polymer/nanoparticle nanofiber.02-09-2012
20120244420SECONDARY BATTERY - A secondary battery according to the present exemplary embodiment is a secondary battery including a laminated electrode body provided with at least one pair of positive and negative electrodes and an outer enclosure that accommodates the laminated electrode body, wherein the outer enclosure includes one or more concave portions, inside a border corresponding to an outer edge of an electrode surface of an outermost layer of the laminated electrode body, on a surface facing the electrode surface, and wherein, when a band-shaped outer circumferential region having an area that is a half of an area inside the border is set inside the border, at least one of the concave portions is located inside the outer circumferential region.09-27-2012
20130183575ELECTROCHEMICAL DEVICE - An electrochemical device which can keep a conductive lid properly joined to a rigid case is provided. A conductive lid 07-18-2013
20100183910BATTERY PACK AND BATTERY-MOUNTED DEVICE - A battery pack is provided in which battery characteristics are not degraded in normal use and, even if a cell reaches a high temperature and a high-temperature gas is released from the inside of the cell, the spread of combustion to the entire pack can be suppressed to reduce damage. The battery pack is provided with cells, a housing for accommodating the cells and a thermal expansion section capable of reducing internal clearances between the cells and the housing upon the application of heat.07-22-2010
20100304208Metal-Resin Composite and Method - A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, and a second coating layer on the first coating layer. The first coating layer fills the concavities and covers the surface of the substrate.12-02-2010
20120244419ELECTROLYTE FOR A LITHIUM RECHARGEABLE BATTERY, LITHIUM RECHARGEABLE BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING A LITHIUM RECHARGEABLE BATTERY - An electrolyte for a lithium rechargeable battery, a lithium rechargeable battery including the same, and a method of manufacturing lithium rechargeable battery, the electrolyte including a first additive, a second additive, a lithium salt; and a non-aqueous organic solvent.09-27-2012
20110059351LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery comprising a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material, a separator, an electrolyte, and a battery can for enclosing these, wherein the positive electrode active material comprises manganese spinel and a layer-type lithium manganese oxide, and the electrolyte comprises vinylene carbonate and unsaturated sultone.03-10-2011
20100151316Accumulator And Method for the Production of an Accumulator - The invention relates to an accumulator (06-17-2010
20100255364RECHARGEABLE BATTERY - A rechargeable battery configured to prevent or substantially prevent explosion resulting from overheating. In one embodiment, a rechargeable battery includes: a first metallic plate; a second metallic plate coupled to the first metallic plate to together include five sides of a hexahedron and define a cavity and an opening to the cavity being a sixth side of the hexahedron, at least one of the first metallic plate or the second metallic plate including a base and walls extending from at least two opposing peripheral sides of the base; a generation member in the cavity and including at least one connection member at a side of the generation member proximate the opening; and a cap assembly including an insulator and at least one electrode lead coupled to the at least one connection member, the cap assembly closing the opening.10-07-2010
20100227213PACKING MATERIAL FOR BATTERY CASE AND BATTERY CASE - A battery case material includes a biaxially stretched polyamide film layer as an outer layer, a thermoplastic resin unstretched film layer as an inner layer, and an aluminum foil layer interposed between the two film layers. As the biaxially stretched polyamide film, a biaxially stretched polyamide film having a density of 1,130 to 1,160 kg/m09-09-2010
20100255365PACKING MATERIAL FOR LITHIUM CELL AND PRODUCTION METHOD THEREOF - A packing material for a lithium cell of the present invention includes a first adhesive layer, an aluminum foil layer, a coating layer, an adhesive resin layer or a second adhesive layer, and a sealant layer laminated sequentially on one surface of a base material layer, wherein the coating layer is a multilayer structure comprising a layer (A), in which 1 to 100 parts by mass of a phosphoric acid or a phosphate has been blended into 100 parts by mass of a rare earth element-based oxide, and a layer (X) which contains an anionic polymer and a cross-linking agent that causes cross-linking of the anionic polymers.10-07-2010
20100143790NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes a case, a nonaqueous electrolyte provided in the case, a positive electrode provided in the case, and a negative electrode provided in the case, including a negative electrode active material and an electronic conductor containing a carbonaceous material, wherein a negative electrode working potential is nobler at least 1 V than a lithium electrode potential, and the carbonaceous material has a spacing (d06-10-2010
20090208838ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - An electrode assembly and a secondary battery having the same that can prevent an electrode coating portion from being separated from an electrode collector and generation of cracks on a surface of the ceramic layer coated on the electrode, the secondary battery comprising: an electrode assembly; a can having an upper opening to receive the electrode assembly; and a cap assembly covering the opening of the can, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate, and ceramic layers that are coated on at the surfaces of the positive electrode plate and the negative electrode plate that face each other, and the ceramic layers include a ceramic powder, a binder, and an additive, and the additive comprises at least one of vinyl acetate, maleic acid, and maleate.08-20-2009
20120141863ELECTROCHEMICAL DEVICE - Various embodiments of the present disclosure provide an electrochemical device that enables each of a plurality battery elements to be appropriately charged and, thereby, meet the demand for higher voltage even when said plurality of battery elements are connected in electrically series between a pair of electrodes. Electrochemical device 06-07-2012
20090191456BATTERY PACK AND MANUFACTURING METHOD THEREFOR - A battery pack has a battery obtained by packing a battery element with a packing member. The battery element is formed by winding or laminating an anode and a cathode through separators. The battery pack includes frame member surrounding the packing member packing the battery element and a coating layer constituted of a curable resin formed on surfaces of the packing member which are surrounded and demarcated by the frame member.07-30-2009
20090186268Impact resistant battery pack - A battery pack including a cell having a surface including a coupling groove, a circuit board electrically connected to the cell, a coupling member coupled to the cell, having one end coupled to the circuit board and another end having a coupling hole corresponding to the one coupling groove, a cover surrounding the circuit board, mounted on one surface of the cell, and having a through-hole, a screw coupled to the coupling groove through the through-hole, and an elastic supporting member disposed between a head part of the screw and the coupling member.07-23-2009
20090111013Secondary battery with protection circuit module - A secondary battery with a protection circuit module having one of a hole and a groove containing a current interrupting device for compensating for the thickness of the PTC, so that an overall length of the secondary battery can be reduced. The current interrupting device may be a PTC, the PTC comprises an upper electrode, a main body and a lower electrode, and the upper electrode, the main body and the lower electrode may be sequentially disposed in a vertical position. Moreover, the PTC comprises a first electrode, a main body and a second electrode, and the first electrode, main body and second electrode may be sequentially disposed along a horizontal line.04-30-2009
20090111012SECONDARY BATTERY - A secondary battery incoludes a positive electrode, a negative electrode including an anode active material layer formed on at least one side of a negative electrode current collector, an electrolyte, and a laminate-film casing member containing therein the positive electrode, the negative electrode, and the electrolyte. The electrolyte contains a non-aqueous solvent which includes a cyclic carbonic ester in an amount of 80 to 100%, based on a total weight of the non-aqueous solvent. The also contains an electrolyte salt in a concentration of 0.8 to 1.8 mol/kg. The anode active material layer contains a polymer which includes repeating units derived from vinylidene fluoride. A peel strength between the anode active material layer and negative electrode current collector is 4 mN/mm or more as measured after immersing the anode active material layer into a solvent.04-30-2009
20090111014Liquid State Lithium Ion Battery with Aluminum-Plastic Complex Film - A liquid state lithium ion battery with aluminum-plastic complex film includes an electrode assembly made up of anodes (04-30-2009
20110117422ELECTROLYTE COMPRISING EUTECTIC MIXTURE AND ELECTROCHEMICAL DEVICE EQUIPPED WITH SAME - An electrolyte includes (a) a eutectic mixture of an alkoxy alkyl group-containing amide compound and an ionizable lithium salt; and (b) a carbonate-based compound. The electrolyte has excellent thermal and chemical stability and exhibits a low lowest limit of electrochemical window. Also, the electrolyte shows low viscosity and high ion conductivity, so it may be usefully applied as an electrolyte of electrochemical devices using various anode materials.05-19-2011
20110117421Secondary battery - A secondary battery including an electrode assembly, the electrode assembly including a separator between a positive electrode and a negative electrode; current collectors, the current collectors being electrically connected to the positive electrode and the negative electrode, respectively; a case, the case accommodating the electrode assembly and the current collectors; a cap plate, the cap plate coupled to an opening in the case; and an insulating film, the insulating film insulating the electrode assembly and the electrode collectors from the case, wherein the insulating film includes a protuberance pattern on at least one surface thereof to compensate for vibration of the electrode assembly current collectors with respect to the case.05-19-2011
20100316904Self flame-retardant lithium ion battery and case thereof made of plastic with helogens - A self flame-retardant lithium ion battery and case thereof formed of plastic with halogens are provided. In one embodiment, the plastic with halogens is selected from the group consisting of PVC (polyvinyl chloride), PVDF (polyvinylidene fluoride), PTFE (polytetrafluoethylene), CPVC (chlorinated polyvinyl chloride), CPE (chlorinated polyethylene), and any combinations thereof. In another embodiment, the plastic with halogens is a mixture of a first material selected from the group consisting of PVC, PVDF, PTFE, CPVC, CPE, and any combinations thereof, and a second material selected from the group consisting of PP (polypropylene), PE (polyethylene), PB (polybutylene), and any combinations thereof. Electrolyte in the battery has hexamethyldisilazane (HMDS).12-16-2010
20110111283THREE-DIMENSIONAL BATTERIES AND METHODS OF MANUFACTURING THE SAME - Various methods and apparatus relating to three-dimensional battery structures and methods of manufacturing them are disclosed and claimed. In certain embodiments, a three-dimensional battery comprises a battery enclosure, and a first structural layer within the battery enclosure, where the first structural layer has a first surface, and a first plurality of conductive protrusions extend from the first surface. A first plurality of electrodes is located within the battery enclosure, where the first plurality of electrodes includes a plurality of cathodes and a plurality of anodes, and wherein the first plurality of electrodes includes a second plurality of electrodes selected from the first plurality of electrodes, each of the second plurality of electrodes being in contact with the outer surface of one of said first plurality of conductive protrusions. Some embodiments relate to processes of manufacturing energy storage devices with or without the use of a backbone structure or layer.05-12-2011
20110008670BATTERY MODULE - A battery module for a rechargeable battery. The battery module has low contact resistance and includes: a plurality of electrode assemblies incorporating a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode; a housing installed with the electrode assembly; and at least one conductive barrier inserted in the housing thereby dividing the space inside the housing, and electrically connecting the plurality of electrode assemblies.01-13-2011
20110244312STACK TYPE BATTERY - In a stack type battery, stacked positive and negative electrode lead tabs (10-06-2011
20110244314SECONDARY BATTERY - A secondary battery includes: a case; an electrode assembly housed in the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode having a coating portion coated with a first active material and a non-coating portion absent the first active material; and a collector plate including first and second collector plates enmeshed together with the non-coating portion therebetween.10-06-2011
20110244313Fluorinated Cyclic Carbonates and Compositions Thereof - Novel fluorinated cyclic carbonate compounds are described. These compounds may be useful as non-aqueous electrolyte solvents, specialty solvents, and starting materials and intermediates for synthesis of dyes, agricultural chemicals, and pharmaceuticals.10-06-2011
20110244311BATTERY COVER LATCHING MECHANISM AND PORTABLE ELECTRONIC DEVICE USING SAME - A battery cover latching mechanism and a portable electronic device using the same are provided. The battery cover latching mechanism detachably locks a battery cover to the housing and includes an assembly portion, a locking assembly and a lock portion. The locking assembly is mounted to the assembly portion of the housing and includes an elastic piece and a latching member. The elastic piece is assembled within the receiving slot. The latching member is elastically and releasably assembled within the receiving slot by the elastic piece for locking or releasing the battery cover. The locking portion is formed on the battery cover and locked by the latching member.10-06-2011
20110129723ALL-SOLID-STATE LITHIUM SECONDARY BATTERY - A safe and highly-reliable all-solid-state lithium secondary battery using a sulfide-based solid electrolyte material which can restrain generation of hydrogen sulfide gas, in case a large amount of water is entered into a battery case by an accident such as submersion associated with a breakage of the container. An all-solid-state lithium secondary battery using a sulfide-based solid electrolyte material, wherein the battery has a metal salt M-X comprising a metal element “M” and an anionic part “X” in a battery case thereof, and further wherein a metal cation of the metal salt M-X generated by disassociation caused with water can react with a sulfide ion generated by a reaction between the sulfide-based solid electrolyte material and the water.06-02-2011
20110086260THIN HOUSING FILM FOR ELECTROCHEMICAL ELEMENTS - A housing film for electrochemical elements includes a barrier layer having a polymeric structure which has been deposited from the gas phase on to a support layer, an electrochemical element which has at least one positive electrode and at least one negative electrode and has at least one such film. A process for producing the electrochemical element includes steps wherein at least two electrodes are applied next to one another on a substrate and are covered with a film, where the substrate and/or the film is such a housing film.04-14-2011
20110250489BATTERY PACK - A battery pack that includes a case and a bare cell. The battery pack further includes a screw for combining the case and the bare cell to each other. The screw includes: a head portion having a screw groove formed in a first surface thereof; a body portion disposed on a second surface of the head portion and including a screw thread; and a connection portion disposed between the head portion and the body portion, wherein a thickness of the head portion is within 0.3 to 1 mm.10-13-2011
20090311593SECONDARY BATTERY - A secondary battery is disclosed. In one embodiment, the secondary battery includes i) an electrode assembly comprising upper and lower surfaces opposing each other, ii) a container configured to receive the electrode assembly via an opening defined at one end thereof, iii) a cap assembly configured to close the opening of the container, wherein an electrolyte injection hole is defined in the cap assembly, and wherein the electrolyte injection hole is configured to receive electrolyte and iv) an insulation case configured to be received by the container and being interposed between the cap assembly and the electrode assembly, wherein a first electrolyte permeation passage is formed between an outer surface of the insulation case and an inner surface of the container, and wherein the first electrolyte permeation passage is configured to expedite the permeation of the received electrolyte into the lower surface of the electrode assembly.12-17-2009
20100015520BATTERY COVER LATCHING STRUCTURE FOR PORTABLE ELECTRONIC DEVICE - A battery cover latching structure (01-21-2010
20100040943Secondary battery - A secondary battery, including an electrode assembly; a can housing the electrode assembly; and a cap assembly on the can, wherein the cap assembly includes: a cap plate having a terminal hole and a terminal groove, a gasket on the cap plate having a center hole, and an electrode terminal having a terminal post in the center hole and a plate portion disposed on the gasket; the gasket including a gasket post in the terminal hole and a gasket plate seated in the terminal groove; at least one side of the terminal plate and at least one side of the gasket plate being spaced apart from at least one side of the terminal groove.02-18-2010
20100040942LAMINATE PACKING MATERIAL FOR BATTERY AND LAMINATE BATTERY - In a laminated external packaging material for a battery according to the present invention, a metallic foil 02-18-2010
20100062330PORTABLE POWER AND CONTROL PACK - A portable power and control pack includes an enclosure having a top surface and a lateral surface formed respectively with openings. The enclosure has a frontal surface provided with at least one connecting element. An electric power device and a controller electrically connected thereto are disposed in the enclosure. The electric power device has a lateral surface provided with plural connecters corresponding in position to one of the openings of the enclosure. The portable power and control pack can be mounted conveniently at an appropriate location on a human-powered bicycle via the at least one connecting element on the enclosure, allowing the connectors of the electric power device to be connected via transmission lines to an axle motor installed on a wheel of the bicycle. Thus, the human-powered bicycle is easily transformed into an electrically driven bicycle.03-11-2010
20110250488SECONDARY BATTERY - Battery modules have a plurality of electrode assemblies in which the electrode tabs of electrode assemblies are easily attached to the battery cases by a common insulator including receptacles for receiving the electrode assemblies. These configurations enable easy manufacture of medium- and large-sized battery modules with a plurality of electrode assemblies. In some embodiments, a battery module includes an insulator capable of mounting a plurality of electrode assemblies and receptacles in the insulator for receiving a portion of each electrode assembly.10-13-2011
20110097622RECHARGEABLE BATTERY - A rechargeable battery that includes: an electrode assembly generating a current; a case accommodating the electrode assembly therein; and a cap assembly coupled to the case so as to be electrically connected with the electrode assembly. The electrode assembly includes a first electrode, a separator, and a second electrode that are sequentially stacked, and the separator includes a main body part disposed between the first and second electrodes and protrusions formed that protrude from the main body part to the side of at least one of an end portion of the first electrode and an end portion of the second electrode.04-28-2011
20110097624REDOX ELECTRODES FOR FLEXIBLE DEVICES - Flexible electrodes comprising: a fabric substrate; a conductive polymer, copolymer or mixture of conductive polymers comprising a first component which has high specific electrochemical capacitance, and a second component which has a lower electrochemical capacitance, lower molecular density, and greater electrical conductivity compared to the first component; and a counterion stable to lithium are described. The first component may be a polymer such as polyaniline or polypyrrole, and second component may be a polymer such as polythiophene or polyEDOT. Copolymers, and polymers formed from co-monomer of these monomer units are also described. The electrodes are used in flexible devices such as flexible energy storage devices.04-28-2011
20110097623SMALL-SCALE BATTERIES AND ELECTRODES FOR USE THEREOF - The present invention generally relates to batteries or other electrochemical devices. In some embodiments, the present invention relates to small-scale batteries or microbatteries. For example, in one aspect of the invention, a battery may have a volume of no more than about 5 mm3, while having an energy density of at least about 400 Wh/l. Other aspect of the invention is directed to techniques of packaging such batteries.04-28-2011
20110097621PROTECTIVE COVER ASSEMBLY FOR BATTERY CONTACTS - A protective cover assembly is used for a battery. The battery includes a plurality of contacts. The protective cover assembly includes a door frame and a slidable door. The door frame is formed on the battery adjacent to the contacts. The slidable door is slidably received in the door frame. The slidable door can be slid along the door frame. The contacts are covered or exposed by the slidable door depending upon the position of the slidable door.04-28-2011
20100297493ALKALINE BATTERY - A positive electrode 11-25-2010
20100279168Pouch-Type Lithium Secondary Battery - A pouch-type lithium secondary battery includes an electrode assembly having an anode made of carbon material capable of occluding or emitting lithium ions, a cathode made of lithium-containing oxide, and a separator interposed between the cathode and the anode for electrical insulation therebetween; a pouch-type case made of sheet to provide a space receiving the electrode assembly; and a non-aqueous electrolyte injected into the electrode assembly. The non-aqueous electrolyte is a non-linear carbonate-based non-aqueous electrolyte including a lithium salt, (a) a cyclic carbonate compound, and (b) a linear ester compound selected from propionate-based compound, methyl butyrate, and propyl acetate, or their mixtures. During LiPF11-04-2010
20090258290POUCH TYPE LITHIUM SECONDARY BATTERY - The present invention is related to a pouch type lithium secondary battery. The pouch type lithium secondary battery according to the present invention may comprise an electrode assembly including a positive electrode, a separator and a negative electrode, and a pouch having a groove for receiving the electrode assembly and upper and lower portions of which are fused to each other around the groove to form flange-shaped edges. In particular, the edges may be at least partially covered at ends thereof with insulating material. As a result, a short circuit between a metal foil of the pouch and the negative electrode of the battery can be prevented, and corrosion of the battery may be also prevented.10-15-2009
20110250490High Discharge Capacity Lithium Battery - A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The positive electrode mixture containing the iron disulfide contains highly packed solid materials, with little space around the solid particles, to provide a high concentration of iron disulfide within the mixture. The separator is thin, to allow more space within the cell for active materials, yet strong enough to prevent short circuits between the positive and negative electrodes under abusive conditions, even when swelling of the cathode during cell discharge places additional stressed on the separator. As a result, the ratio of the interfacial capacity of the positive electrode to the electrode interfacial volume is high, as is the actual capacity on low rate/low power and high rate/high power discharge.10-13-2011
20090023062POUCH TYPE LITHIUM SECONDARY BATTERY - A pouch type lithium secondary battery includes: an electrode assembly including electrode tabs respectively connected to two electrodes, the two electrodes having different polarities; and a case to house the electrode assembly such that the electrode tabs extend to the outside of the case, wherein one stepped part through which the two electrode tabs simultaneously extend is formed in a sealing portion of the case. In the electrode sealing portion of the pouch type lithium secondary battery having short width, sealing of the case is improved by the one stepped part, thereby improving efficiency of the manufacturing process of the battery.01-22-2009
20090317707LITHIUM SECONDARY BATTERY - Provided is a lithium secondary battery which is capable of preventing high-temperature short circuit by incorporation of a clad negative electrode tab having a nickel/copper bilayer structure.12-24-2009
20100266893Method and Design for Externally Applied Laser Welding of Internal Connections in a High Power Electrochemical Cell - An electrochemical cell includes components that are welded from an external source after the components are assembled in a cell canister. The cell canister houses electrode tabs and a core insert. An end cap insert is disposed opposite the core insert. An external weld source, such as a laser beam, is applied to the end cap insert, such that the end cap insert, the electrode tabs, and the core insert are electrically coupled by a weld which extends from the end cap insert to the core insert.10-21-2010
20120202107ELECTRIC STORAGE DEVICE - An electric storage device including a case, a positive electrode, a negative electrode, a current collector, a gasket, and a conductive member. The current collector has a first end connected to the positive electrode or the negative electrode and a second end electrically connected to an inner surface of the case. The conductive member includes a body and an inside large-diameter portion having a larger diameter than that of the body. The body is arranged in a mounting hole of the case. The inside large-diameter portion is disposed at one end of the body inside the case, and electrically connected to a second end of the current collector. The inside large-diameter portion is arranged so as to be in contact with an inner gasket such that the inner gasket and the second end of the current collector are sandwiched between the inside large-diameter portion and the case.08-09-2012
20110177385CURRENT COLLECTOR FOR AN ELECTROCHEMICAL CELL - A current collector (07-21-2011
20130196212High Energy Battery And The Manufacture Method Thereof - A 1.5V battery and manufacturing method thereof is disclosed. The battery includes a positive electrode composed of 80%-90 weight-% of pyrite, up to 3.5% of conductive carbon black, 3%-5% of graphite, 2%-4% of oxide or lithium oxide and 1%-4% of water-soluble adhesive; a negative electrode composed of lithium metal or a lithium-aluminum alloy; an electrolyte composed of an organic solvent selected from three or more of NMP, PC, DME, DOL, isoxazoles, THF, DMSO and SFL; and an inorganic salt solute selected from one or more of LiClO08-01-2013
20120064390LITHIUM ION BATTERY ELECTROLYTE AND LITHIUM BATTERY HAVING THE SAME - Electrolytes of lithium ion batteries of the present disclosure comprise: a lithium salt, a non-aqueous solvent, and an additive. The additive further comprises a first and second compound. The first compound is a 4 X1, 5 R1 [1,3]dioxolan-2-one, wherein X1 is selected from the group consisting of: F, Cl, and Br and R1 is selected from the group consisting of hydrogen and linear alkyl compounds having between 1 and 3 carbon atoms. The second compound has a molecular formula of: F(CF03-15-2012
20080241670Electrolyte for lithium ion rechargeable battery and lithium rechargeable battery including the same - An electrolyte for a lithium ion rechargeable battery, including a lithium salt, a non-aqueous organic solvent, a dihalogenated ethylene carbonate, and a halogenated ethylene carbonate. The electrolyte may include about 0.01 to about 2 weight % of the dihalogenated ethylene carbonate, and the electrolyte may include about 0.1 to about 10 weight % of the halogenated ethylene carbonate.10-02-2008
20110027643Button Type Cell Battery with Metallic Framework - A 1.5V Li-FeS02-03-2011
20100330413METAL-RESIN COMPOSITE AND METHOD - A metal-resin composite comprises a metal substrate with concavities in the surface, a first coating layer on the surface of the metal substrate, a second coating layer on the first coating layer, and a third coating layer on the second coating layer. The first coating layer fills the concavities and covers the surface of the substrate.12-30-2010
20100285351Li-ION BATTERY WITH ANODE EXPANSION AREA - An electrochemical cell in one embodiment includes a first electrode including a form of sulfur as an active material, a second electrode spaced apart from the first electrode, the second electrode including a plurality of nanowires, and a transfer member operably contacting the first electrode and the second electrode to transfer one or more of pressure and volume between the first electrode and the second electrode.11-11-2010
20120121967Non-Aqueous Electrolyte Battery - A non-aqueous electrolyte battery includes a battery device in which a positive electrode is faced to negative electrode through a separator; a non-aqueous electrolyte; a laminate film which is formed by laminating a metal layer, an outside resin layer formed in outer face of the metal layer, and an inside resin layer formed in the metal layer, and in which the battery device and the non-aqueous electrolyte is packaged by heat welding and housed; a positive electrode lead which is electrically connected to the positive electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; a negative electrode lead which is electrically connected to the negative electrode, and drawn from portion heat-welded of the laminate film to an exterior thereof; and a porous polymer layer containing, as a component, vinylidene fluoride formed between the laminate film and the battery device.05-17-2012
20110136000Rechargeable Battery - A rechargeable battery includes: a case; an electrode assembly housed in the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode having a coated portion coated with a first active material and an uncoated portion absent the first active material; a safety assembly including a first electric conductive plate and a first supporting protrusion extending from the first electric conductive plate and physically coupled to the uncoated portion; a current collecting tab electrically coupling the electrode assembly with the terminal and physically coupled to the uncoated portion; and a first auxiliary plate physically coupled to the uncoated portion at a surface of the uncoated portion opposite to where the first supporting protrusion is physically coupled to the uncoated portion.06-09-2011
20100323237BATTERY CONNECTOR COUPLING - An information handling system (IHS) includes an IHS chassis having a processor and defining a battery housing. An IHS connector is located adjacent the battery housing and is electrically coupled to the processor. A battery is located in the battery housing and includes a battery chassis that houses at least one battery cell. A battery connector is electrically coupled to the at least one battery cell and engages the IHS connector. The battery connector is moveably coupled to the battery chassis through a battery connector coupling that allows the battery connector to move relative to the battery chassis when the battery connector engages the IHS connector.12-23-2010
20100330412Secondary battery - A secondary battery including an electrode assembly, a can including a bottom plate and a sidewall extending from the bottom plate, the can being configured to accommodate the electrode assembly, and an insulating case including a plate-shaped main body facing the electrode assembly and a support part extending from the main body, the insulating case being accommodated in the can, wherein the support part of the insulating case includes at least one support wall bent from the main body.12-30-2010
20110256446BATTERY CELL ASSEMBLIES - A battery cell assembly in accordance with an exemplary embodiment is provided. The assembly includes a first frame member having a first plurality of tabs extending away from a first peripheral edge of the first frame member. Each tab of the first plurality of tabs has a first coupling feature at a distal end of the respective tab. The assembly further includes a second frame member having a plurality of slots extending into a second peripheral edge of the second frame member. The assembly further includes a battery cell disposed between the first and second frame members, and each first coupling feature of each tab of the first plurality of tabs is configured to engage a respective slot of the plurality of slots of the second frame member to fixedly hold the first and second frame members together.10-20-2011
20110070481PROTECTIVE MATERIAL AND ENERGY STORAGE MODULE USING THE SAME - The present invention provides a protective material, which includes an acidic material and an absorbent additive. An alkaline electrolyte will be neutralized by the acidic material, and water produced from the neutralization reaction of the acidic material and the alkaline electrolyte will be absorbed by the absorbent additive. In addition, the present invention also discloses an energy storage module using the same.03-24-2011
20110136001NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY USING THE SAME - A negative electrode active material which is low-cost and has a high energy density, and a lithium ion secondary battery using such a negative electrode active material are provided. The lithium ion secondary battery uses, as the negative electrode active material, an orthorhombic-system metal composite oxide represented by the formula A06-09-2011
20110076548SECONDARY BATTERY - A secondary battery is disclosed. In one embodiment, the battery includes an electrode assembly having a diameter of L03-31-2011
20100196755ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - An electrode assembly and a secondary battery having the same, which include a positive electrode having a positive electrode active material layer deposited on a positive electrode collector, a negative electrode having a negative electrode active material layer deposited on a negative electrode collector, and a separator separating the positive electrode from the negative electrode. The negative electrode active material layer includes a negative electrode active material of a metal-graphite complex, and the thickness of the negative electrode collector is in the range from 16.3 to 24.2% of that of the negative electrode active material layer. The thickness of the secondary battery can be reduced while maintaining battery capacity by controlling the ratio of the thickness of the negative active material layer to the negative electrode collector and controlling the tensile stress of the negative electrode collector.08-05-2010
20100068616Secondary battery - A secondary battery including an electrode assembly; a can having an opening at an upper portion thereof and housing the electrode assembly; a cap assembly sealing the opening of the can; and an insulation case disposed between the electrode assembly and the cap assembly, the insulation case having an impact absorber configured to deform and absorb an external impact.03-18-2010
20110151318Secondary battery - A secondary battery including an electrode assembly, the electrode assembly including electrode plates and a separator interposed between the electrode plates, at least one of the electrode plates including a coated part, the coated part including a metallic plate having an active material coated thereon, and an uncoated part, the uncoated part including a metallic plate without active material coated thereon, the uncoated part including a folding line in the uncoated part, and a folding part with an end portion folded with respect to the folding line; and a current collector electrically contacting the folding part.06-23-2011
20100028771ELECTROLYTE FOR LITHIUM BATTERIES - Electrolyte and lithium secondary batteries containing the same are disclosed. In one instance, the electrolyte includes a lithium salt, a solvent and an additive. In some examples, the additive includes substances A, B and C, wherein substance A is vinylene carbonate, substance B includes at least one of fluorinated or chlorinated ethylene carbonate or diethylene carbonate, and substance C includes at least one of ethylene sulfite, 1,3-propanesultone and propenyl sulfite.02-04-2010
20090317708PLASTIC LAMINATE FILM - Plastics composite foil for the sheathing of lithium-ion-polymer batteries and lithium-polymer batteries, comprising, arranged in mutual superposition, the following layers: a) a base foil composed of plastic b) a metal foil and c) a functional plastics layer, where at least one metal protective layer applied via a physical deposition process, such as vapour deposition processes or sputtering, an example being a chromium layer, has been arranged with thickness of from 0.1 to 1000 nm (nanometres) on the layer b), the metal foil, at least in the direction of the layer c), and/or on the layer c), the functional plastics layer, in the direction of the layer b), the metal foil, and/or in the functional plastics layer.12-24-2009
20090317710ANODE, CATHODE, GRID AND CURRENT COLLECTOR MATERIAL FOR REDUCED WEIGHT BATTERY AND PROCESS FOR PRODUCTION THEREOF - A process for producing lightweight materials for a battery comprises lightweight polymer substrate coated with dispersions of nano particles, conductive matrixes and active material.12-24-2009
20090053594RECHARGEABLE AIR BATTERY AND MANUFACTURING METHOD - An air battery having an air cathode having a porous carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonage additive. The battery also includes a separator loaded with an organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive, a cathode current collector, an anode, an anode current collector, and a housing. The housing contains the cathode, separator, cathode current collector, anode, anode current collector, and a supply of air.02-26-2009
20110059350ELECTROLYTES FOR LITHIUM SULFUR CELLS - Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte. The cell exhibits high utilization of the electroactive sulfur-containing material of the cathode and a high charge-discharge efficiency.03-10-2011
20090317709COMPOSITE CARBON FOAM - A composite foam including a carbon foam material comprising a network of pores and a plurality of discontinuities and a secondary material deposited on at least some of the plurality of discontinuities of the carbon foam material.12-24-2009
20120148906CHEMICAL CURRENT SOURCE - The chemical current source can be used in the electrical devices, wherein it is feeding the electrical devices that constantly operate or can temporarily/accidentally be under extreme conditions produced with the different negative factors such as fire, various types of radiation, including heat, electromagnetic etc., various types of mechanical effects, e.g. a blow and so on. The chemical current source consists of a housing with current feedthroughs and solid-state galvanic cells that are arranged within the housing and connected to the current feedthroughs, contain an anode, an electrolyte, a cathode based on solid-state ionic conductors. For the multifunctional use in the electrical device the chemical current source is made as a thermal protection and (or) a protective shield for the protection of the electrical device or some its parts against external effects and (or) environment against effects going from the electrical device or some its parts.06-14-2012
20100216012LITHIUM RECHARGEABLE BATTERY - A lithium rechargeable battery includes an electrode assembly arranged in a can and an insulating case positioned at an upper portion of the electrode assembly. The insulating case includes at least one protrusion protruding toward an inner wall of the can08-26-2010
20110111284ACTIVATED CARBON FOR ELECTROCHEMICAL ELEMENT AND ELECTROCHEMICAL ELEMENT USING THE SAME - Van der Waals molecular diameters of a cation, an anion, and a solvent contained in an electrolytic solution are denoted by Lc, La, and Ls, respectively. The minimum widths of van der Waals molecules of the cation, anion, and solvent are denoted by Lmin,c, Lmin,a, and Lmin,s, respectively. The maximum values of Lc, La, Ls, Lmin,c, Lmin,a, and Lmin,s is denoted by W1. The minimum values of (Lc+La), (Lc+Ls), (La+Ls), (Lmin,c+Lmin,a), (Lmin,c+Lmin,s), and (Lmin,a+Lmin,s) is denoted by W2. Under these definitions, the total pore volume of the activated carbon in which a slit width obtained by the MP method is W1 or more and W2 or less is 15% or more of the total pore volume in which the slit width is 2.0 nm or less.05-12-2011
20120301777SECONDARY BATTERY - A secondary battery includes an electrode assembly and at least one safety member coupled with the electrode assembly. The safety member has a safety layer including a short-circuit heat absorbing material.11-29-2012
20110064994POWER SUPPLY ASSEMBLY - A power supply assembly composed of an electric storage device and an electric energy conversion device. The electric storage device includes two electrodes. The electric energy conversion device includes at least one lithium iron phosphate battery. The at least one battery is electrically connected with the electrodes. In light of this, the power supply assembly can have denser electric storage and higher discharge rate, such that power supply assembly can discharge stably, have a longer working life, and have preferable discharging effect under the low-temperature environment.03-17-2011
20120003527NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY MODULE - A nonaqueous electrolyte secondary battery, having an internal resistance of 10 mΩ or less as an alternating-current impedance value of 1 kHz, comprises a metal outer container, a nonaqueous electrolyte contained in the container, a positive electrode contained in the container, a negative electrode contained in the container, a separator interposed between the negative electrode and the positive electrode, a negative electrode lead having one end connected to the negative electrode, and a negative electrode terminal attached to the outer container so as to be connected electrically to the other end of the negative electrode lead, at least the surface of the negative electrode terminal which is connected to the negative electrode lead being formed of aluminum alloy with an aluminum purity of less than 99 wt. % containing at least one metal selected from the group consisting of Mg, Cr, Mn, Cu, Si, Fe and Ni.01-05-2012
20120208072ELECTRODE STRUCTURE AND ELECTROCHEMICAL CELL USING THE SAME - An electrode structure and an electrochemical cell including the electrode structure are provided. The electrode structure includes a porous three-dimensional (3D) outer net including an interconnected plurality of outer metal lines that define a plurality of outer holes between adjacent ones of the outer metal lines. The outer metal lines include a porous 3D inner net, a first layer coating the inner net, and a second layer coating the first layer. The inner net includes an interconnected plurality of inner metal lines that define a plurality of inner holes between adjacent ones of the inner metal lines. The inner metal lines include a first metal. The first layer includes a second metal. The second layer includes a third metal.08-16-2012
20120009463CASE FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - A case for a secondary battery and a secondary battery including the same, the case including a case body, the case body having bottom and a space for receiving an electrode assembly; and a shock-absorbing cap, the shock-absorbing cap having a bottom and an edge extending from the bottom of the shock-absorbing cap, the edge being coupled to the bottom of the case body, wherein the shock-absorbing cap includes a sub-shock absorber, the sub-shock absorber being configured to distribute and transmit shock applied to the bottom of the shock-absorbing cap.01-12-2012
20120009464MATERIAL FOR METAL CASE OF SECONDARY BATTERY USING NON-AQUEOUS ELECTROLYTE, METAL CASE, SECONDARY BATTERY, AND PRODUCING METHOD OF MATERIAL FOR METAL CASE - The material for metal cases of secondary batteries using a non-aqueous electrolyte includes a steel sheet; and a plated layer that has a Ni layer, and a Cu—Ni layer, which is disposed between the Ni layer and the steel sheet and is in contact with the Ni layer, and is in contact with the steel sheet.01-12-2012
20120015238NON-AQUEOUS ELECTROLYTE SECONDARY CELL - There is provided a non-aqueous electrolyte secondary cell that exhibits excellent cycle characteristics over a wide temperature range from low to high temperature. This object can be realized by adopting the following configuration.01-19-2012
20120015237SECONDARY BATTERY - An Example relates to a secondary battery including an electrode assembly and an electrolyte contained in a can. The electrode assembly includes an anode plate, a cathode plate and a separator. The electrolyte contains an organic solvent and a lithium salt at a concentration of about 0.5 M to about 1 M in the organic solvent.01-19-2012
20120115020BATTERY PACK - A battery includes an electrode assembly fabricated with a positive electrode, a separator, and a negative electrode, each perforated by corresponding through voids along both of their respective opposite edge margins, stacked one upon another with the corresponding holes aligned. An arrangement of guide portions integrally formed simultaneously together with a surrounding case, accommodates stacking of the electrode assembly during fabrication of the battery. Aspects of the guide portions extend along a direction of stacking of the positive electrodes, negative electrodes and separators. The case and the arrangement of guide portions improve the internal alignment and facilitates the stack ability of electrode assemblies formed by the stacking of positive electrodes, negative electrodes and separators, and enhances the operational stability of the battery and the output performance of the battery, without detracting from the overall compactness of the battery.05-10-2012
20110165454BATTERY PACK - A battery pack 07-07-2011
20110165453NON-AQUEOUS ELECTROLYTIC SECONDARY BATTERY AND POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTIC SECONDARY BATTERY - A nonaqueous electrolytic secondary battery and a positive electrode for a nonaqueous electrolytic secondary battery are provided. The positive electrode includes a positive electrode active material layer containing a positive electrode active material and a coupling agent represented by a general formula (1). The positive electrode active material includes lithium transition metal oxide particles. At least one rare-earth compound selected from the rare-earth compound group consisting of specific rare-earth hydroxides and specific rare-earth oxyhydroxides is fixed on the surfaces of the lithium transition metal oxide particles in a dispersed form.07-07-2011
20120058387ELECTRODE ASSEMBLY HAVING BENDING PORTIONS AND SECONDARY BATTERY INCLUDING THE SAME - A secondary battery having positive and negative electrode plates inserted into the interior of a pouch, and positive and negative electrode active material layers respectively coated on the positive and negative electrode plates are arranged at a constant interval. Bending portions are provided to bend positive and negative electrode non-coating portions respectively not coated with the positive and negative electrode active material layers.03-08-2012
20120064392ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES AND LITHIUM ION BATTERIES THEREOF - An electrode material for a lithium ion battery comprises an electrode active material, an adhesive and a hydrogen storage alloy. The hydrogen storage alloy includes at least one selected from AB03-15-2012
20120064389SECONDARY BATTERY - A secondary battery includes an electrode assembly; a can having an opening configured to receive the electrode assembly, wherein the can includes a first stepped portion and a second stepped portion on an inner surface adjacent to the opening and wherein the first and second stepped portions have different depths; a cap assembly comprising a cap plate hermetically sealing the opening of the can; and an insulation case located between the electrode assembly and the cap assembly.03-15-2012
20120064391SEALED BATTERY - In a sealed battery, an outer case made of metal has a flange part and a concave part. An electric power generating element has an electrode body and electrolyte stored in the concave part. The electrode body has positive and negative electrodes connected to corresponding electrode leads, respectively. The flange part extends from the outer periphery of the outer case to the outside. The concave part is covered and sealed by a metal plate. The metal plate and one surface of the flange part are thermally bonded together through a metal-adhesive resin film. The metal plate projects toward the outside of the flange part. This projected part of the metal part is bent with the metal adhesive resin film toward the other surface of the flange part. The bent metal part and the other surface of the flange part are thermally bonded with the metal adhesive resin film.03-15-2012
20120070721LITHIUM ION BATTERY - The present disclosure discloses a lithium ion battery comprising a battery shell, a cover assembly, an electrode assembly, a first current collecting plate and a second current collecting plate. The electrode assembly comprises a positive plate, a negative plate and a separator provided therebetween which are coiled together. The electrode assembly and the current collecting plates are disposed in a space formed by the battery shell and the cover assembly. The first and second current collecting plates are disposed at each end of the electrode assembly respectively, with a first uncoated area of the positive plate and a second uncoated area of the negative plate being welded to the first and second current collecting plates respectively.03-22-2012
20120070720BATTERY AND ULTRASONIC BONDING METHOD FOR BATTERY - The present invention provides a battery including a container, an electrode group including a positive electrode and a negative electrode, multiple current collecting tabs being extended from any one of the positive electrode and the negative electrode of the electrode group, and overlapped with one another; a lead bonded to at least one of the current collecting tabs by ultrasonic bonding, a lid configured to close an opening portion of the container, and an external terminal provided on the lid and connected to the at least one current collecting tab via the lead, in which the lead has a cross-sectional area that is increased in a middle of extension of the lead from an ultrasonic-bonded portion to the at least one of the current collecting tabs to the external terminal.03-22-2012
20120156551PACKING CASE FOR BATTERY, SECONDARY BATTERY USING THE SAME, AND METHOD OF MANUFACTURING THE SECONDARY BATTERY - A packing case for a battery including an inside layer, an outside layer, and a metal layer formed between the inside and outside layers, wherein the outside layer comprises at least one sub-layer having a color different than a color of the metal layer; and a secondary battery including the packing case; and a method of manufacturing the secondary battery.06-21-2012
20120156550Secondary battery - A secondary battery includes an electrode assembly having a first electrode plate with a first electrode non-coated portion, the first electrode non-coated portion including a first protrusion part at an upper part of the electrode assembly, a second electrode plate with a second electrode non-coated portion, the second electrode non-coated portion including a second protrusion part at an upper part of the electrode assembly, and a separator disposed between the first and second electrode plates, first and second current collecting plates electrically connected to respective first and second electrode plates, and a case accommodating the electrode assembly and the first and second current collecting plates, the case having a shape corresponding to the first and second protrusion parts of the electrode assembly.06-21-2012
20110091764POUCH-TYPE SECONDARY BATTERY - A pouch-type secondary battery including: an electrode assembly having a first electrode plate, a second electrode plate, and a separator disposed therebetween; and a pouch case including a first case part having a pouch to house the electrode assembly, a second case part disposed over an open end of the pouch, and sealing portions to seal the second case part to the first case part. The sealing portions include wing portions that are bent to cover opposing sides of the pouch, and bent portions that are bent from the wing portions, to cover a bottom surface of the pouch.04-21-2011
20110104558Electric Storage Battery Support Apparatus - An apparatus for supporting a battery comprises a tray including a support surface, a recess having a elevation that is lower than an elevation of the support surface, ribs located in the recess and extending to the elevation of the support surface, thermal insulation supported on the ribs and the upper surface, and a battery contacting the insulation and supported on the ribs and the support surface.05-05-2011
20110104559Secondary battery - A secondary battery including an electrode assembly, the electrode assembly including a separator between a positive electrode and a negative electrode; current collectors, the current collectors being electrically connected to the positive electrode and the negative electrode, respectively; a case, the case accommodating the electrode assembly and the current collectors; a cap plate, the cap plate coupled to an opening in the case; and an insulating film between the current collectors and the case, the insulating film including a recess corresponding to a shape of at least one of the current collectors and the electrode assembly to offset a vibration of the current collectors with respect to the case.05-05-2011
20110104560NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY MODULE - A nonaqueous electrolyte secondary battery, having an internal resistance of 10 mΩ or less as an alternating-current impedance value of 1 kHz, comprises a metal outer container, a nonaqueous electrolyte contained in the container, a positive electrode contained in the container, a negative electrode contained in the container, a separator interposed between the negative electrode and the positive electrode, a negative electrode lead having one end connected to the negative electrode, and a negative electrode terminal attached to the outer container so as to be connected electrically to the other end of the negative electrode lead, at least the surface of the negative electrode terminal which is connected to the negative electrode lead being formed of aluminum alloy with an aluminum purity of less than 99 wt. % containing at least one metal selected from the group consisting of Mg, Cr, Mn, Cu, Si, Fe and Ni.05-05-2011
20120121968LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery is provided where the production process line that fabricated it can be identified. The lithium-ion secondary battery includes a jelly roll, a positive electrode tab, a negative electrode tab, a positive electrode can, and a lid. The jelly roll is made by rolling the positive electrode and the negative electrode with an interposed separator, and is contained in the casing. The positive electrode tab has one end connected to the positive electrode of the jelly roll and the other end connected to the lid. The negative electrode tab has one end connected to the negative electrode of the jelly roll and the other end connected to a terminal provided on the lid. The other end of the negative electrode tab has a shape with a cut at a cut angle determined in accordance with the production process line that fabricated the lithium-ion secondary battery.05-17-2012
20100092855Battery Pack Apparatus For Electric Window Coverings - A battery pack apparatus for electric window coverings coupling with a clutch installed on one side of an upper rail of a window shade includes a battery pack housing below the clutch and a battery pack held in the battery pack housing. The battery pack has a retaining assembly element at one end and an elastic thrust element at a distal end thereof lock or unlock with a latch assembly element at an opposing end of the battery pack housing. Thereby the battery pack can be loaded or unloaded easily to change batteries to facilitate retracting and extending operation of the window shade.04-15-2010
20120164519ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - The present disclosure relates to an electrolyte for a lithium secondary battery capable of improving safety and reliability of the lithium secondary battery and a lithium secondary battery comprising the electrolyte. The electrolyte for a lithium secondary battery of the present embodiments comprises a non-aqueous organic solvent, a lithium salt, flame retarding materials of fluoroalkyl ether and phosphazene, and a solvent comprising at least one ester.06-28-2012
20100248012Alkaline Batteries - An AA alkaline cell is described. The cell includes a housing and within the housing an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The anode may include about 3.3 grams of zinc particles. The cathode may include a cathode active material. The electrolyte may include an ionically conductive component in an aqueous solution. The AA alkaline cell may have a TA/Concentration ratio greater than about 4800.09-30-2010
20090130550SECONDARY BATTERY - A secondary battery includes: a bare cell; an insulation case located on the bare cell; a protection device seated on the insulation case and electrically coupled to the bare cell; and a first lead electrically coupled to a first terminal of the protection device, where the insulation case includes; a base portion on which the protection device is seated; an anchor portion provided on a surface at one end of the base portion; and a hook portion projecting from one side surface of the anchor portion toward a center of the base portion and having an insertion groove at a lower portion thereof. The first lead is connected to the hook portion of the insulation case.05-21-2009
20090130549Lead acid battery including a two-layer carbon foam current collector - A lead acid battery includes a housing and at least one cell disposed within the housing. Each cell includes at least one positive plate and at least one negative plate and an electrolyte disposed in a volume between the positive and negative plates. The at least one negative plate includes a current collector, consisting essentially of a layer of carbon foam disposed on a substrate, and a chemically active material disposed on the current collector.05-21-2009
20100248011Lithium cell with improved iron disulfide cathode - A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS09-30-2010
20100248013LITHIUM RECHARGEABLE BATTERY HAVING AN INTERNAL SPACE - A lithium rechargeable battery includes an electrode assembly having a first electrode, a second electrode, and a separator interposed between them, a can having an opening to contain the electrode assembly, and a cap plate coupled to the top of the can. A side of the can is asymmetrical with respect to another side thereof about at least one of a long axis, short axis, and central point of its cross section. The lithium rechargeable battery has a predetermined space formed between the can and the electrode assembly for improved electrolyte injection and increased manufacturing efficiency and power storage capacity of the battery.09-30-2010
20120164520Electrode Assembly and Secondary Battery Including Electrode Assembly - An electrode assembly and a secondary battery including the same. The electrode assembly includes a plurality of positive electrode plates including a first positive electrode plate including a first positive electrode tab arranged at a first location, and a second positive electrode plate including a second positive electrode tab arranged at a second location, a plurality of negative electrode plates; and a separator arranged between ones of the positive electrode plates and ones of the negative electrode plates, wherein the first positive electrode plate and the second positive electrode plate are alternately stacked.06-28-2012
20100209764METHOD OF MANUFACTURING SECONDARY BATTERY, AND SECONDARY BATTERY MANUFACTURED BY THE METHOD - A method of manufacturing a secondary battery, including: loading a core pack in a cavity of a mold; loading the mold on a mold receiving portion of an injection molding apparatus; and filling a molten resin in a chamber of the mold.08-19-2010
20100209762Gravoltaic cell - The gravoltaic cell converts a gravitational force into electrical energy. The gravoltaic cell comprises a container, an electrolytic mixture of at least two electrolytes disposed in the container, an upper and lower electrode, and an external electrical load connected across the two said electrodes for dissipating said electrical energy. The electrolytic mixture comprises a denser and a less dense portion. The upper electrode contacts the greater distribution of the less dense electrolytic portion, and the lower electrode contacts the greater distribution of the denser electrolytic portion. A state of electrochemical non-equilibrium exists between the upper and lower electrodes. The electrochemical non-equilibrium has a greater distribution of the less dense portion of the electrolytic mixture near a higher volume of the container, and a greater distribution of the denser portion of the electrolytic mixture near a lower volume of the container. A gravitational field sustains a state of density divergence of a volume of the at least two electrolytes, and the upper and lower volumes of the at least two electrolytes and the upper and lower electrodes are held in stationary position relative to the gravitational field.08-19-2010
20100209763ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - This invention provides an electrode for a non-aqueous electrolyte secondary battery and a method for producing the electrode. The electrode includes a current collector and an electrode mixture layer formed on a surface of the current collector, and the electrode mixture layer includes an active material and a binder. The active material comprises first active material particles of substantially spherical shape and second active material particles of non-spherical shape. The second active material particles are particles of the first active, material particles crushed and are packed so as to close gaps between the first active material particles. This invention can provide an electrode for a non-aqueous electrolyte secondary battery in which the electrode mixture layer has a higher packing rate than conventional rates.08-19-2010
20120219847POUCH TYPE BATTERY AND ITS MANUFACTURING METHOD - Provided are a lithium polymer battery and a method of manufacturing the lithium polymer battery. The lithium polymer battery comprises: an electrode assembly comprising a positive electrode, a negative electrode and a separator; a pouch enclosing the electrode assembly, the pouch comprising a first panel and a second panel generally opposing the first panel, the first panel comprising a first main surface, the second panel comprising a second main surface opposing the first main surface, the pouch further comprising a first step formed in the first panel in a perimeter thereof and stepped from the first main surface toward the second main surface, the first step comprising a first step surface generally parallel to the first main surface; and an insulation tape placed on the first step surface and comprising a first tape surface over the first step surface and facing away from the first step surface, wherein the first main surface is generally planar throughout, and the insulation tape is not placed over the first main surface, and wherein the first step and the insulation tape are sized such that the first tape surface is at a level not substantially higher than the first main surface08-30-2012
20110183190Case for a secondary battery and manufacturing method thereof - A case for a secondary battery and a manufacturing method thereof, the case including a body formed of a conductive material, the body accommodating an electrode assembly; and a crystal barrier type oxide film on a surface of the body.07-28-2011
20110183189EXTENDED RANGE ELECTRIC VEHICLE BATTERY CELL PACKAGING FOR POUCH DESIGN - A package for a battery cell is disclosed. The package includes a first sheet having a coating layer disposed thereon, a second sheet having a coating layer disposed thereon, the first sheet and the second sheet cooperating to form a cavity to receive the battery cell therein, and a frame disposed adjacent a portion of at least one of the first sheet and the second sheet, wherein the frame is coupled to at least one of the first sheet and the second sheet.07-28-2011
20120135298NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE - Disclosed is a non-aqueous electrolyte secondary battery including a cathode, an anode, and a non-aqueous electrolyte containing a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous electrolyte contains an orthocarbonate ester compound represented by Formula (1) and cyclic carbonate ester compounds represented by Formulae (2) to (5).05-31-2012
20120237819Electrode assembly and secondary battery using the same - An electrode assembly includes a porous polymer layer, a conductive layer on each of a first and a second surface of the porous polymer layer, and an active material layer on each of the first and second surfaces of the porous polymer layer.09-20-2012
20100173191Conductor Plate Protection for a Battery - The invention relates to a vehicle battery, comprising a housing, a cell assembly arranged in the housing made up of battery cells, and a plate arranged in the electrical connector region of the cells for electrical connection of the cells. The battery also has support elements arranged inside the housing which, in the case of a deformation of the housing toward the plate by a deformation force acting on the housing, support the loading forces acting on the plate due to the deformation of the housing.07-08-2010
20120214048LITHIUM BATTERY AND METHOD FOR FABRICATING THE SAME - A lithium battery and a method for fabricating the same are provided. The lithium battery includes an anode, a cathode located opposite to the anode, a separator and an electrolyte solution. The separator is located between the anode and the cathode, wherein the anode, the cathode and the separator commonly define a containing region. The electrolyte solution is located in the containing region, and includes an organic solvent, a lithium salt and an additive. The additive includes a maleimide-based compound and a hydroxyl-containing species having a molecular weight less than 1000, and a content of the hydroxyl-containing species in the electrolyte solution ranges between 0.05 wt % and 5 wt %. The lithium battery and the fabrication method thereof can solve problems of water contained in the battery, and an environment with high dryness and low moisture content is unnecessary for fabrication, thereby reducing the production cost and enhancing the battery performance.08-23-2012
20110206981LITHIUM SECONDARY BATTERY - A lithium secondary battery includes a positive electrode in which a positive electrode mixture layer including a positive electrode binder and a positive electrode active material containing particles of a lithium transition metal composite oxide represented by a chemical formula Li08-25-2011
20120077078All-Solid-State Lithium Secondary Battery - A main object of the present invention is to provide a safe and highly-reliable all-solid-state lithium secondary battery using a sulfide-based solid electrolyte material which can restrain generation of hydrogen sulfide gas, in case a large amount of water is entered into a battery case by an accident such as submersion associated with a breakage of the container.03-29-2012
20120177980LITHIUM SECONDARY BATTERY - The gas generation and the decrease in battery capacity during high temperature storage of a lithium secondary battery are suppressed. The electrolyte contains a polymerizable compound or a polymer, the polymerizable compound contains a compound having an aromatic functional group and a polymerizable functional group and a compound having a complex-forming functional group forming a complex with a metal ion and a polymerizable functional group, and the polymer has the complex-forming functional group, the aromatic functional group and a residue of the polymerizable functional group.07-12-2012
20120177981SECONDARY BATTERY - A secondary battery includes an electrode assembly. The electrode assembly includes a first electrode plate provided with a first tab portion, a second electrode plate provided with a second tab portion, and a separator interposed between the electrode plates. In the electrode assembly, the width of the first or second tab portion is in the range from over 0.5 of the half of the width of each of the electrode plates to below the half of the width of each of the electrode plates, and the first or second tab portion is provided to have a spacing distance b from a central portion of the first or second electrode plate to a starting portion of the first or second tab portion. The spacing distance is in the range from over 0 mm to less than half of the half (¼) of the width of the first or second electrode plate.07-12-2012
20100273045NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery according to the present invention includes a positive electrode and a negative electrode which are capable of reversibly occluding and releasing lithium; a resin layer provided between the positive electrode and the negative electrode; a battery case accommodating the positive electrode, the negative electrode and the resin layer; a nonaqueous electrolyte solution filling the battery case; and an insulating layer interposed, at least partially, between the positive electrode and the resin layer, the insulating layer containing aluminum fluoride.10-28-2010
20120258352ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - A battery case for a secondary battery and a secondary battery using the same. The secondary battery includes an electrode assembly and the battery case. The electrode assembly is composed of a first electrode plate, a second electrode plate and a separator interposed therebetween. The battery case is provided with an accommodating portion that accommodates the electrode assembly. In the secondary battery, the depth of the accommodating portion is approximately 70% to approximately 80% of the thickness of the electrode assembly.10-11-2012
20090061304NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A center pin is inserted in a hollow cavity of an electrode group of a lithium ion secondary battery. The center pin includes a center portion, a perimeter portion and an end portion. The center portion extends in the radial direction of the hollow cavity. The perimeter portion extends along an inner wall surface of the hollow cavity from an end of the center portion in the radial direction of the hollow cavity. The end portion extends from an end of the perimeter portion in the circumferential direction toward the inside of the hollow cavity to be away from the inner wall surface of the hollow cavity but separated from the center portion.03-05-2009
20090061303NONAQUEOUS-ELECTROLYTE BATTERY - The invention provides a nonaqueous-electrolyte battery which has a positive electrode 03-05-2009
20100291432SECONDARY BATTERY AND METHOD OF MAKING THE SECONDARY BATTERY - A secondary battery and a manufacturing method thereof are disclosed. In one embodiment, the secondary battery includes 1) an electrode assembly having an outer surface, 2) a sealing tape attached to and surrounding at least part of the outer surface of the electrode assembly and 3) a can accommodating the electrode assembly and sealing tape. The sealing tape includes i) an adhesive layer contacting the outer surface of the electrode assembly and ii) a base layer formed on and at least partially covering the adhesive layer. The base layer contacts an inner surface of the can. At least part of the adhesive layer is not covered by the base layer.11-18-2010
20120189905Graphite Particles And Lithium Secondary Battery Using The Same As Negative Electrode - A method for forming a negative electrode for a lithium secondary battery, includes providing a paste comprising graphite particulates comprise assembled or bound graphite particles in each of which a plurality of flat-shaped particles are assembled or bound together so that the planes of orientation are not parallel to one another, and the mixture including 3 to 10 parts by weight of the organic binder per 100 parts by weight of the graphite particulates, a binder and a solvent, coating the paste on a current collector, drying the paste coated on the current collector to form a mixture of the graphite particulates and the binder, and integrating the mixture with the current collector by pressing to provide a density of the mixture of graphite particulates and organic binder of 1.5 to 1.9 g/cm07-26-2012
20120189904SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A secondary battery according to an embodiment includes a container having a pouring hole through which an electrolyte is poured, and housing the electrolyte, poured through the pouring hole, together with an electrode body; and a sealing lid which is fixed to the container and is closing the pouring hole. The sealing lid has a welding mark existing in a ring shape with a depth through the sealing lid to a lid body of the container, and an inner circumferential side molten mark existing in a ring shape overlapping with the welding mark, on the inner circumferential side of the welding mark in the sealing lid, with a depth corresponding to the thickness of the sealing lid.07-26-2012
20120189903SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A secondary battery according to an embodiment includes a container having a pouring hole through which an electrolyte is poured, and housing the electrolyte, poured through the pouring hole, together with an electrode body; and a sealing lid fixed to the container and closing the pouring hole. The container has a plurality of grooves extending in parallel along the outer edge of the pouring hole, in a predetermined region that surrounds the periphery of the pouring hole, and the sealing lid is provided on the plurality of grooves in such a manner as to close the pouring hole and is fixed to the container.07-26-2012
20120231327POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCTION OF SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY PRODUCED USING SAME - At the time of synthesis of lithium nickelate, by adding a firing aid to material to be fired, crystal growth is promoted at a temperature that is lower than a firing temperature necessary for obtaining desired crystal growth of lithium nickelate, and substitution of elements that contribute to structural stability in crystals is promoted. Furthermore, distortion of crystal or loss of oxygen at the time of synthesis is suppressed. Thus, a lithium ion secondary battery having excellent charge and discharge characteristics and cycling characteristics can be provided.09-13-2012
20120231326STRUCTURED SILICON BATTERY ANODES - Methods of fabricating porous silicon by electrochemical etching and subsequent coating with a passivating agent process are provided. The coated porous silicon can be used to make anodes and batteries. It is capable of alloying with large amounts of lithium ions, has a capacity of at least 1000 mAh/g and retains this ability through at least 60 charge/discharge cycles. A particular pSi formulation provides very high capacity (3000 mAh/g) for at least 60 cycles, which is 80% of theoretical value of silicon. The Coulombic efficiency after the third cycle is between 95-99%. The very best capacity exceeds 3400 mAh/g and the very best cycle life exceeds 240 cycles, and the capacity and cycle life can be varied as needed for the application.09-13-2012
20110039148ALKALINE PRIMARY CELLS - A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The anode further includes manganese.02-17-2011
20120231325ELECTROLYTE FOR A LITHIUM RECHARGEABLE BATTERY, LITHIUM RECHARGEABLE BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING A LITHIUM RECHARGEABLE BATTERY - A lithium rechargeable battery, an electrolyte for a lithium rechargeable battery, and a method of manufacturing a lithium rechargeable battery, the battery including an electrode assembly; a case accommodating the electrode assembly; and an electrolyte in the case, wherein the electrolyte includes a lithium salt; a non-aqueous organic solvent, the non-aqueous organic solvent including about 50 wt % or more of an ester-based solvent; lithium difluoro(oxalato)borate; and a first additive, the first additive including at least one selected from tris(trialkylsilyl)phosphate, tris(trialkylsilyl)phosphite, and tris(trialkylsilyl)borate.09-13-2012
20130171508POUCH TYPE BATTERY - A pouch type battery, including: an electrode assembly; a pouch accommodating the electrode assembly; a first electrode tab electrically connected to the electrode assembly, the first electrode tab extending outside of the pouch; a positive temperature coefficient (PTC) device electrically connected to the first electrode tab, the PTC device being fixed to the pouch by a photocurable adhesive; and a lead plate electrically connected to the PTC device.07-04-2013
20080299454LITHIUM SECONDARY BATTERY - A lithium secondary battery includes two electrode plates having different polarities and has a ceramic film provided on one electrode plate of the two, wherein the electrode plate coated with the ceramic film has a front edge positioned ahead of a front edge of another electrode plate, and/or has a back edge positioned behind a back edge of the other electrode plate when the two electrode plates are laminated and/or spirally wound. Aspects of the present invention provide such a lithium secondary battery to prevent a short circuit between the ceramic film-employed electrode plates and the electrode collector of electrode plates having different polarities when the ceramic film-employed electrode plates are laminated or spirally wound, thereby improving stability and reliability of the battery.12-04-2008
20120328930NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode includes a first negative electrode active material containing a monoclinic β-type titanium composite oxide and a second negative electrode active material. The second negative electrode active material causes insertion and release of lithium ion in a potential range from 0.8 V to 1.5 V (vs. Li/Li12-27-2012
20110003194LITHIUM ION BATTERY - A lithium ion battery is disclosed. The lithium ion battery includes a can, an electrode assembly, and a cap assembly. A relatively thin emergency rupture member is formed on (or at) a bottom (or bottom surface) of the can. The emergency rupture member may have a line shape which is spaced apart from and parallel to a long side of the bottom of the can. Alternatively, the emergency rupture member may be formed on (and/or along) the long side of the bottom.01-06-2011
20110039150ALKALINE PRIMARY CELLS - A battery is described. The battery includes an anode, a cathode, a separator disposed between the cathode and the anode, and an electrolyte. The electrolyte further includes manganese. The manganese is selected from the group consisting of: cesium permanganate (CsMnO02-17-2011
20110045340Secondary battery - A secondary battery including an electrode assembly, and a case, the case including a pair of long side walls facing each other, and a pair of short side walls at ends of the long side walls, and accommodating the electrode assembly in a space defined by the long side walls and the short side walls, each short side wall including a bottom region and a top region, the bottom region and top region each having a thickness, and the thickness of the bottom region being greater than the thickness of the top region.02-24-2011
20110236748CURRENT COLLECTOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - A current collector includes a metal foil with a plurality of through-holes formed therein. The metal foil is divided into two regions of: a distant region distant from a connection portion to be connected to an external terminal; and a close region being close to the connection portion and having the same area as the distant region. The open area ratio of the distant region of the metal foil is larger than that of the close region. Thus, the electrical resistance of the close region is smaller than that of the distant region. Therefore, production of heat in the close region due to passage of current can be suppressed.09-29-2011
20110236747COMPOSITE MATERIAL FOR NEGATIVE ELECTRODE, METHOD FOR FABRICATING THE SAME AND ELECTROCHEMICAL DEVICE USING THE SAME - The present invention relates to a composite material for a negative electrode, including: a plurality of iron oxide particles; and a conductivity improver, which is selected form the group consisting of copper, cobalt, nickel, tin, antimony, bismuth, indium, silver, gold, lead, cadmium, carbon black, graphite, copper salt, cobalt salt, nickel salt, tin salt, antimony salt, bismuth salt, indium salt, silver salt, gold salt, lead salt, cadmium salt, copper hydroxide, cobalt hydroxide, nickel hydroxide, stannic hydroxide, antimony hydroxide, bismuth hydroxide, indium hydroxide, silver hydroxide, gold hydroxide, lead hydroxide, cadmium hydroxide and the combination thereof. In the case of applying the composite material for a negative electrode according to the present invention in an electrochemical device, the improved charge/discharge characteristics and high capacity can be achieved. In addition, the present invention further provides a method for fabricating the above-mentioned composite material for a negative electrode and an electrochemical device using the same.09-29-2011
20110236746BATTERY OUTER LABEL AND BATTERY PROVIDED WITH THE SAME - A battery outer label 09-29-2011
20120129044Alkaline Electrochemical Cell - An alkaline electrochemical cell is provided which efficiently utilizes active materials within the cell to achieve enhanced cost efficiency. The electrochemical cell includes a container defining a sealed volume and an anode and cathode disposed in the sealed volume of the container. The cathode includes manganese dioxide and the anode includes zinc. A ratio of zinc weight to anode volume is less than 1.8. An alkaline electrolyte is disposed in the container in contact with the anode and cathode, and water is disposed within the container. A weight ratio of water to manganese dioxide is greater than 0.28, and a weight ratio of water to zinc is greater than 0.65.05-24-2012
20120321940NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to a present exemplary embodiment comprises an electrode element including a positive electrode and a negative electrode arranged to face each other, a nonaqueous electrolyte and a jacket housing the electrode element and the nonaqueous electrolyte. The negative electrode is formed by bounding a negative electrode active material to a negative electrode collector with a negative electrode binder, the negative electrode active material containing (a) a carbon material capable of intercalating and deintercalating lithium ions, (b) a metal capable of forming an alloy with lithium and (c) a metal oxide capable of intercalating and deintercalating lithium ions. The nonaqueous electrolyte contains a nonaqueous solvent, a cyclic fluorinated carbonate and a linear fluorinated ether.12-20-2012
20120100417ELECTROLYTE COMPOSITIONS AND METHODS OF MAKING AND USING THE SAME - Electrolyte compositions suitable for use in batteries, such as a lithium ion battery, are disclosed The electrolyte compositions include functionalized metal oxide particles In several embodiments the compositions utilize the presence of solvent or a scavenger Methods of making and using electrolyte compositions are also disclosed Articles of manufacture containing an electrolyte composition are also disclosed04-26-2012
20120100416MOLTEN SALT BATTERY CASE, AND MOLTEN SALT BATTERY - The case for a molten salt battery is used for a molten salt battery containing as an electrolyte a molten salt containing sodium ions. The case is formed of aluminum or an aluminum alloy containing 90% by mass or more of aluminum.04-26-2012
20120100415CABLE-TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A cable-type secondary battery includes an electrode assembly, which has a first polarity current collector having a long and thin shape, at least two first polarity electrode active material layers formed on the first polarity current collector to be spaced apart in the longitudinal direction, an electrolyte layer filled to surround at least two first polarity electrode active material layers, and at least two second polarity electrode active material layers formed on the electrolyte layer to be spaced apart at positions corresponding to the first polarity electrode active material layers, the electrode assembly being continuously bent into a substantially “S” shape by a space between the first polarity electrode active material layers; and a second polarity current collector configured to surround at least one side of the electrode assembly bent into a substantially “S” shape.04-26-2012
20120100414ENCAPSULATED EMI/RFI SHIELDING FOR A NON-CONDUCTIVE THERMOSETTING PLASTIC COMPOSITE PHEV BATTERY COVER - A cover for a high voltage vehicle battery is disclosed that is made of a light weight, non-conductive thermoset plastic composite, such as a polyester resin matrix, and includes an EMI/RFI shield. In one embodiment, the EMI/RFI shield is a Faraday cage including a ferrous mesh that is molded into the thermoset plastic composite so that it is completely encapsulated therein. In another embodiment, the EMI/RFI shield is an acrylic polymer coating including nickel plated copper flakes formed on an outside surface of the thermoset plastic composite.04-26-2012
20100167117BATTERY INCLUDING ELECTRICALLY CONDUCTIVE PHOSPHATE GLASS COMPONENTS - An electrode plate for an energy storage device includes a current collector fabricated at least partially from an electrically conductive phosphate glass. A chemically active material may be disposed on the current collector.07-01-2010
20130011721POUCH AND POUCH TYPE SECONDARY BATTERY - Provided are a pouch and a pouch type secondary battery, which includes an accommodating part having an inner space, and a cover part integrally formed with the accommodating part and covering an opening of the accommodating part. A bending extension is disposed around an interface between the accommodating part and the cover part. When the pouch into which the accommodating part and the cover part are integrated is assembled, the cover part is bent, and then, a contact surface between the accommodating part and the cover part is sealed, thereby sealing the inside of the pouch. At this point, the bending extension disposed on the interface disposed between the accommodating part and the cover part is also sealed to thereby prevent external moisture from being introduced through the interface after the sealing of the pouch.01-10-2013
20100129705ACCUMULATOR - An accumulator comprises at least one galvanic cell and a receiving device for supporting the galvanic cell(s) of the accumulator. The receiving device comprises at least one protecting wall for receiving energy by means of elastic and/or plastic deformation. The protecting wall encases the at least one galvanic cell at least partially and has a thickness which is at least partially less than about 1/10 of the characteristic edge length of the at least one galvanic cell. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.05-27-2010
20130022860LEAD ACID STORAGE BATTERY - A flooded-type lead acid storage battery in which charging is intermittently carried out in a short period of time and high-efficiency discharge to a load is carried out in a partial state of charge, wherein the charge acceptance and service life characteristics are improved by using a positive plate in which the specific surface area of the active material is set to 6 m01-24-2013
20130022861LITHIUM SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE FOR USE IN THE SAME - A lithium secondary battery is provided. The battery comprises: a positive electrode and a negative electrode which each has a specific composition and specific properties; and a nonaqueous electrolyte which contains a cyclic siloxane compound of formula (1), a fluorosilane compound of formula (2), a compound of formula (3), compound having an S—F bond in the molecule, nitric acid salt, nitrous acid salt, monofluorophosphoric acid salt, difluorophosphoric acid salt, acetic acid salt, or propionic acid salt in an amount of 10 ppm or more of the whole nonaqueous electrolyte.01-24-2013
20080254359RECHARGEABLE BATTERY - A rechargeable battery is provided including a bare cell having a can. The can has an electrode assembly. The electrode assembly has an electrode terminal withdrawn from one surface of the bare cell. A circuit is electrically coupled to the bare cell. The circuit includes a charge-discharge circuit and an antenna circuit. A case is connected to the electrode terminal for receiving and covering the circuit. An antenna assembly is on an outer surface of the bare cell. The antenna assembly includes a line antenna for receiving a radio frequency signal. The line antenna is coupled to the antenna circuit.10-16-2008
20080254358RECHARGEABLE LITHIUM BATTERY - The rechargeable lithium battery according to one embodiment includes a negative electrode, a positive electrode, and an electrolyte in a case. The rechargeable lithium battery includes a compound that forms a coordinate covalent bond with anions in at least one of a negative electrode, a positive electrode, an electrolyte, and an inner surface of a case. The rechargeable lithium battery can inhibit electrode corrosion at a high voltage and can be manufactured without requiring additional fabrication processes.10-16-2008
20080241673PRISMATIC CELL - A prismatic cell capable reliably inhibiting swelling of the cell is provided. The prismatic cell includes an electrode assembly having a positive electrode and a negative electrode, an electrolytic solution, and a prismatic outer casing housing the electrode assembly and the electrolytic solution. The outer casing has an inwardly depressed portion in the central portion of a side surface of the outer casing having a largest area among the four side surfaces of the prismatic outer casing. The depressed portion has at least one swelling prevention groove.10-02-2008
20080226978Support foot for battery pack, battery pack with the same and method of manufacturing the same - A support foot for a battery pack, a battery pack including the support foot and a method for manufacturing the battery pack are provided. The support foot is constructed with a first support part, and a second support part including a protrusion. The protrusion is inserted into the battery pack and is thermally welded to be attached to the battery pack, so that the support foot can be securely attached to the battery pack.09-18-2008
20080226977Electrolyte for lithium ion rechargeable battery and lithium ion rechargeable battery including the same - An electrolyte for the lithium rechargeable battery includes a non-aqueous organic solvent, lithium salts, vinylethylene carbonate and fluoroethylene carbonate. With this electrolyte, the ba0ttery life can be improved, and the storing property at a high temperature can be improved because the increasing rate of the battery thickness according to the increased internal pressure in the battery due to the gas generation is reduced when being kept at the high temperature, and the discharging property at a low temperature is improved because the discharge capacity can be increased when discharging at the low temperature.09-18-2008
20110262801MOUNTING ARRANGEMENT FOR A BATTERY PACK - A mounting arrangement for a battery pack in a vehicle including the battery pack and a vehicle body, the battery pack including a housing having a hollow interior and a battery assembly disposed in the hollow interior of the housing, wherein the battery assembly includes at least one battery cell and a plurality of rails coupled thereto, and the vehicle body including support rails and a compartment formed therein to receive the battery pack therein, wherein the compartment of the vehicle body supports the housing and the support rails support the rails of the battery assembly to divide a vertical load of the battery pack.10-27-2011
20130177801LITHIUM PRIMARY CELL - The present disclosure is directed to a primary electrochemical cell having an improved discharge performance, and/or improved reliability under physical abuse and/or partial discharge. More particularly, the present disclosure is directed to such a primary cell that comprises an improved cathode material comprising iron disulfide and a select pH-modifier and an improved non-aqueous electrolyte that comprises a solvent, a salt, pH-modifiers, and selected organic or inorganic additives, which improve cell stability and discharge performance.07-11-2013
20130143106LITHIUM ION BATTERY - A lithium ion battery includes a cell assembly, a casing containing the cell assembly, a cap assembly and electrolyte filling in the casing. The cell assembly has stacked electrode plates with separators disposed between neighbored electrode plates. The casing has a bottom wall, a number of side walls extending vertically from the bottom wall, and a receiving space defined by the bottom wall and the number of side walls with an opening opened outwards. The cap assembly includes a cap plate covering the opening and encapsulating the cell assembly in the casing. A recessed structure is formed on the side wall of the casing.06-06-2013
20130143107BATTERY EXTERIOR BODY, METHOD OF MANUFACTURING BATTERY EXTERIOR BODY, AND LITHIUM SECONDARY BATTERY - A battery exterior body which can be easily manufactured without additional process by heat-sealing internal layers of battery exterior materials, and has a high degree of safety with respect to gas generated in the inside of the exterior body, a method of manufacturing the battery exterior body, and a lithium secondary battery are provided. The battery exterior body is a battery exterior body 06-06-2013
20130202949RECHARGEABLE BATTERY HAVING A WALL ELEMENT AND WALL ELEMENT THEREFOR - The invention relates to a rechargeable battery comprising a battery housing which has a cell cavity, or several cell cavities separated by dividing walls. One or more of the cell cavities have at least one respective positive and negative electrode, separated from each other by at least one separator and a liquid electrolyte. One or more of the cell cavities have a respective wall element, which partitions the respective cell cavity into at least two volume chambers which communicate with one another. At least in the lower regions of the volume chambers, a communicating connection between the volume chambers for the liquid electrolytes is provided and in the upper region of the volume chambers, a pressure compensation connection between the volume chambers for assuring equal air pressure in the volume chambers communicating chambers is provided. Also disclosed is a wall element for such a rechargeable battery, and a battery housing.08-08-2013
20110269012GALVANIC ELEMENT WITH COMPOSITE OF ELECTRODES, AND SEPARATOR FORMED BY AN ADHESIVE - An electrochemical element includes at least one individual cell having electrodes arranged on a sheet-like separator, wherein the electrodes have been applied to the separator by at least one adhesive.11-03-2011
20130209866BATTERY PACK LOCK STRUCTURE AND ELECTRONIC APPARATUS - The present invention simplifies locking of a battery pack (08-15-2013
20130209863ACTIVE MATERIAL FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - According to one embodiment, there is provided a active material for a battery including a complex oxide containing niobium and titanium. A ratio M08-15-2013
20130209864ALKALINE BATTERY - There is provided An inside-out alkaline battery, including: a cylindrical cathode can that has a bottom, that performs a function of a cathode current collector, that has a nickel-plated layer on an inner surface of the cathode can, and that has a coating on a surface layer of the nickel-plated layer, 08-15-2013
20130095371Shrink Film for Label - A shrink film comprising a core layer comprising a glycol modified polyester, the core having an upper and lower surface; an upper skin layer disposed on the upper surface of the core layer and a lower skin layer disposed on the lower surface of the core layer, the skin layers each individually comprising (a) a resin material; and (b) an antiblocking agent.04-18-2013
20130115509BATTERY GRID WITH VARIED CORROSION RESISTANCE - A battery grid is disclosed. The battery grid includes a pattern of grid wires. The pattern includes a grid wire having a first segment with a first corrosion resistance and a second segment with a second corrosion resistance which is less than the first corrosion resistance. The second segment corrodes at a rate which is faster than the corrosion rate of the first segment so as to dynamically release internal stress and control grid growth of the battery grid during its service life. A battery includes said grid and a method of forming said grid are also disclosed.05-09-2013
20130115508NONAQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR THE SAME, AND BATTERY PACK - According to one embodiment, there is provided an electrode for a nonaqueous electrolyte battery. The electrode includes an active material layer. The active material layer includes a monoclinic β-type titanium composite oxide. When the electrode is subjected to an X-ray diffraction measurement using a Cu-Kα ray source, a ratio of a reflection intensity I(020) of a peak derived from a plane (020) of a crystal of the monoclinic β-type titanium composite oxide to a reflection intensity I(001) of a peak derived from a plane (001) of the crystal of the monoclinic β-type titanium composite oxide being in the range from 0.6 to 1.2.05-09-2013
20130122351NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a nonaqueous electrolyte secondary battery, comprising an electrode group including a positive electrode, a negative electrode including a material for absorbing-desorbing lithium ions, and a separator arranged between the positive electrode and the negative electrode, a nonaqueous electrolyte impregnated in the electrode group and including a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, and a jacket for housing the electrode group and having a thickness of 0.3 mm or less, wherein the nonaqueous solvent γ-butyrolactone in an amount larger than 50% by volume and not larger than 95% by volume based on the total amount of the nonaqueous solvent.05-16-2013
20130130096Light-Weight Bipolar Valve Regulated Lead Acid Batteries and Methods Therefor - Light-weight VRLA batteries comprise a thin lead substrate that is supported by non-conductive, preferably plastic frames that provide structural stability to accommodate stress and strain in the bipole assembly. In particularly preferred batteries, the plastic frames are laser welded together and phantom grids and electrode materials are coupled to the respective sides of the lead substrate. Where the phantom grid is an ultra-thin lead grid, the lead grid is preferably configured to provide a corrosion reserve of less than 10 charge-discharge cycles and the bipole assembly is charged in an in-tank formation process. Where the phantom grid is a non-conductive grid, the lead grid is preferably a plastic grid and the bipole assembly is charged in an in-container formation process. Consequently, weight, volume, and production costs are significantly reduced while specific energy is substantially increased.05-23-2013
20130149594NEGATIVE ELECTRODE ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING THE SAME - A negative electrode active material and a secondary battery including the same are provided. More particularly, the present disclosure relates to a negative electrode active material including a Si-metal alloy including Si, the Si being present in the Si-metal alloy in an amount of 66 at % or less, and at least a portion of the Si being crystalline Si. The negative active material can provide a high-capacity battery, which can retain high capacity due to little volumetric expansion during charging and discharging, thereby demonstrating an excellent life characteristic of the secondary battery. The negative electrode active material may include a Si-metal alloy including crystalline Si having a crystal grain size of 30 nm or less. Methods of preparing a negative electrode active material and methods of preparing a secondary battery including the same are also disclosed.06-13-2013
20130149595BATTERY MODULE AND ITS ADHESIVE STRAP - The disclosure discloses a method for manufacturing a battery shell applicable to an electronic device. The method includes providing a metal substrate, a metal implanting component including a connecting part disposed thereon; bonding the metal implanting component to the metal substrate; and forming a plastic component on the metal substrate by an insert molding process. The plastic component covers the metal implanting component. By bonding the plastic component to the bonding part of the metal implanting component, the bonding strength is enforced.06-13-2013
20130149596ELECTROLYTE SOLVENT CONTAINING IONIC LIQUIDS - Binary solvents that may be useful as electrolyte solvents for nonaqueous battery systems, such as lithium ion batteries are described. The electrolyte solvents consist of two components, an ionic liquid (preferably containing a fluorinated anion) and a fluoroether. Electrolyte compositions comprising the electrolyte solvents and electrochemical cells comprising the electrolyte compositions are also described.06-13-2013
20100310924ELECTRODE GROUP FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - A positive electrode 12-09-2010
20110274966NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - An exemplary embodiment of the invention provides a nonaqueous electrolytic solution secondary battery in which capacity deterioration associated with a charge/discharge cycle at a high temperature (45° C. or higher) can be prevented. An exemplary embodiment of the invention is a nonaqueous electrolytic solution secondary battery, comprising an electrode element in which a cathode and an anode are stacked, a nonaqueous electrolytic solution which contains at least one of carbonate solvent, and a gel in an outer packaging body; wherein the anode comprises a silicon oxide represented by SiO11-10-2011
20110274965NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte includes: a solvent, an electrolyte salt, and at least one of heteropolyacid salt compounds represented by the following formulae (I) and (II): H11-10-2011
20100316905SECONDARY BATTERY - A secondary battery including an electrode assembly having a top and a bottom, a case containing the electrode assembly and comprising a bottom plate, wherein the bottom of the electrode assembly is proximate the bottom plate, a cap assembly coupled to the case, and a short induction plate between the electrode assembly and the case, the short induction plate adapted to fracture when the case is compressed to induce a short of the electrode assembly.12-16-2010
20130157119SECONDARY BATTERY - An object is to provide a secondary battery in which decomposition of an electrolyte liquid is suppressed and generation of a gas is reduced, even in the case of using a laminate film as a package. Further, the present exemplary embodiment provides a secondary battery of stacked laminate type comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid and a package accommodating the electrode assembly and said electrolyte liquid, wherein the negative electrode is formed by binding a negative electrode active substance comprising a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of occluding and releasing lithium ions and a carbon material (c) capable of occluding and releasing lithium ions, to a negative electrode current collector, with at least one selected from polyimides and polyamideimides, and the electrolyte liquid comprises a predetermined nitrile compound.06-20-2013
20130157120SECONDARY BATTERY - The object of an exemplary embodiment of the invention is to provide a secondary battery with a high performance in which the generation of the swelling can be suppressed and in which the cycle property is excellent. An exemplary embodiment of the invention is a secondary battery, comprising an electrode assembly in which a positive electrode and a negative electrode are oppositely disposed, an electrolyte liquid, and a package which encloses the electrode assembly and the electrolyte liquid inside; wherein the negative electrode is formed by binding a negative electrode active substance, which comprises metal (a) that can be alloyed with lithium, metal oxide (b) that can absorb and desorb lithium ion, and carbon material (c) that can absorb and desorb lithium ion, to a negative electrode collector with at least one selected from polyimides and a polyamide-imides; and wherein the electrolyte liquid comprises a compound represented by any one of predetermined formulae.06-20-2013
20120282518CELL CASE - A cell case has a plurality of front slide connection parts each having an engaged groove in a lower part thereof and an engaging piece protrudingly formed in an upper part thereof; and a plurality of rear slide connection parts each having an engaged groove in a lower part thereof, an engaging protruding piece protrudingly formed in an upper part thereof, and an insertion hole formed in a lower surface thereof into which the engaging protruding piece is inserted. The cell case is connected or disconnected through forward-backward sliding movement.11-08-2012
20120282517ELECTROCHEMICAL CELL AND METHOD FOR PRODUCING SUCH A CELL - An electrochemical cell includes at least one electrode stack, which is arranged inside a casing of the electrochemical cell, wherein the electrode stack has at least one first electrode layer and one second electrode layer, wherein a separator layer is arranged between the first electrode layer and the second electrode layer, wherein the first electrode layer has a smaller areal extension than the second electrode layer, and wherein an in particular mechanically stabilizing edge layer is arranged adjacent to the first electrode layer.11-08-2012
20130157116NON-AQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte including an ionizable lithium salt and an organic solvent may further include (a) 1 to 10 parts by weight of a compound having a vinylene group or vinyl group per 100 parts by weight of the non-aqueous electrolyte, and (b) 10 to 300 parts by weight of a dinitrile compound having an ether bond per 100 parts by weight of the compound having the vinylene group or vinyl group. The lithium secondary battery comprising the non-aqueous electrolyte may effectively suppress the swelling and improve the charge/discharge cycle life.06-20-2013
20130157117SECONDARY BATTERY AND SECONDARY BATTERY ELECTROLYTE USED THEREIN - Provided is a lithium ion secondary battery in which a high-energy type negative electrode is used, the lithium ion secondary battery having high capacity and excellent thermal stability. A secondary battery according to the present embodiment comprises: an electrode element having a positive electrode and a negative electrode opposed each other; an electrolyte; and an outer casing containing the electrode element and the electrolyte, wherein the negative electrode comprises a negative electrode active material, which includes at least one of a metal (a) capable of alloying with lithium and a metal oxide (b) capable of occluding and releasing lithium ions, is bonded to a negative electrode current collector by a negative electrode bonding agent, and the electrolyte comprises 70˜99 vol % of a phosphoric acid ester compound and 1˜15 vol % of a fluorinated carbonate compound. A secondary battery electrolyte according to the present embodiment includes 70˜99 vol % of a phosphoric acid ester compound and 1˜15 vol % of a fluorinated carbonate compound.06-20-2013
20130157118LEAD-ACID BATTERY - In a valve-regulated lead-acid battery in which charging is performed intermittently on every short time and high rate discharging to a load is performed in a partial state of charge (PSOC), a valve-regulated lead-acid battery improved for the charge acceptance and the life characteristic under PSOC than usual is provided. A positive electrode plate having a specific surface area of an active material of 5.5 m06-20-2013
20130183576SECONDARY BATTERY - An object is to provide a higher-performance secondary battery, particularly to provide a secondary battery having a low impedance. The present exemplary embodiment is a secondary battery comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode includes a negative electrode active substance containing at least one selected from a metal (a) capable of being alloyed with lithium, and a metal oxide (b) capable of occluding and releasing lithium ions, a negative electrode binder, and a negative electrode current collector; and the electrolyte liquid contains a sulfide compound.07-18-2013
20130122352SINTERED NICKEL POSITIVE ELECTRODE, METHOD FOR MANUFACTURING THE SAME, AND ALKALINE STORAGE BATTERY INCLUDING THE SINTERED NICKEL POSITIVE ELECTRODE - Disclosed is a sintered nickel positive electrode that has an expanded usable range to a low charging region by using nickel hydroxide having a particular crystal structure as a main component of a positive electrode active material.05-16-2013
20130122350STORAGE ELEMENT FOR AN ELECTROCHEMICAL DEVICE, ELECTROCHEMICAL DEVICE USING SAID STORAGE ELEMENT, METHOD FOR MANUFACTURING STORAGE ELEMENT FOR ELECTROCHEMICAL DEVICE, AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE - [Object] One object is to provide an electric storage element for electrochemical devices that can prevent fall of active material powder from an outer edge of an active material layer, thereby preventing functional disorders due to the fall of the active material powder.05-16-2013
20130122353SECONDARY BATTERY - An object of the invention is to provide a secondary battery having satisfactory high-temperature cycle characteristics. The present invention relates to a laminate type secondary battery including an electrode element containing an electrode pair in which a positive electrode and a negative electrode are arranged so as to face each other, an electrolyte and a jacket housing the electrode element and the electrolyte, in which the negative electrode includes a negative-electrode active material containing at least one of a metal (a) capable of forming an alloy with lithium and a metal oxide (b) capable of absorbing and desorbing lithium ions, a negative electrode binder and a negative electrode current collector; the electrolyte contains a nonaqueous solvent and biphenyl; and the content of the biphenyl in the electrolyte is 0.5 to 2.5% by mass, based on the total of the nonaqueous solvent and the biphenyl.05-16-2013
20110311860NONAQUEOUS ELECTROLYTE BATTERY AND NONAQUEOUS ELECTROLYTE - A nonaqueous electrolyte battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte containing a solvent and an electrolyte salt, wherein the nonaqueous electrolyte contains a silyl compound represented by the following formula (1)12-22-2011
20090286151Lithium-ion battery - A lithium-ion battery includes a positive electrode having an active material and a polymeric separator configured to allow electrolyte and lithium ions to flow between a first side of the separator and an opposite second side of the separator. The battery also includes a liquid electrolyte having a lithium salt dissolved in at least one non-aqueous solvent and a negative electrode having a lithium titanate active material. The positive electrode has a first capacity and the negative electrode has a second capacity that is less than the first capacity.11-19-2009
20130189564Lithium Ion Battery and Manufacturing Method Thereof - The present invention relates to a lithium ion battery, with thin shell wall, simple structure and high energy density. The lithium ion battery comprises a cell and a shell for containing the cell, the front end of the cell is connected with a protective plate and a top cover, the top cover and the shell are connected through fasteners, and the shell is a plastic shell. With respect to the conventional art, the top cover and the shell are connected and assembled through fasteners, just a few of workstations are required to complete the assembly of the whole shell, the structure of the lithium battery is simplified, labor and time are greatly saved, and the production efficiency is improved. In addition, the disclosure also discloses a method for manufacturing the lithium ion battery.07-25-2013
20130189565Batteries Having Nanostructured Composite Cathode - A battery having a negative electrode including an anode current collector having at least one sheet of carbon nanotubes and semiconductor material deposited on the sheet; a positive electrode including a cathode current collector having at least one sheet of carbon nanotubes having a nickel sulfide or tin sulfide deposited on the sheet; and a separator situated between the negative electrode and positive electrode is provided. Methods for forming a cathode having nickel sulfide or tin sulfide deposited on a carbon nanotube sheet are also provided.07-25-2013
20130189566Rechargeable Electrochemical Battery Cell - Rechargeable lithium battery cell having a housing, a positive electrode, a negative electrode and an electrolyte containing a conductive salt, wherein the electrolyte comprises SO07-25-2013
20120021276SECONDARY BATTERY CELL - The present invention is a secondary battery, including: an electrode group that includes a positive electrode and a negative electrode, an electrolyte, and a battery cell container that contains the electrode group and the electrolyte and that is sealed, wherein: an adhesive layer for trapping foreign matter present inside the battery cell container is disposed in the battery cell container by exposing at least part of the adhesive layer so as to allow the adhesive layer to come into contact with the electrolyte.01-26-2012
20120021275Prismatic type secondary battery including insulation tube - A prismatic type secondary battery including an electrode assembly, the electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case accommodating the electrode assembly, the case having an open upper end and at least two pairs of surfaces facing each other; a cap assembly sealing the open upper end of the case; and an insulation tube surrounding a lateral periphery of the case and the cap assembly within a region up to a certain height or greater, the insulation tube including at least one elasticity part at a side thereof.01-26-2012
20120028110BUTTON CELL WITHOUT FLANGING AND METHOD OF MAKING SAME - A method for producing a button cell with a housing includes a cell cup with a base region, a lateral region, an edge region lying therebetween and a cut edge, and a cell cover with a cover region, a lateral region, an edge region lying therebetween and a cut edge, connected to one another via a seal. The method includes at least applying the seal to the lateral region, inserting the cell cover with the seal into the cell cup, wherein a region is formed in which the lateral regions and overlap one another, and exerting a pressure on the lateral region of the cell cup. The heights of the lateral regions and are matched to one another such that the cut edge is pressed against the lateral region by pressure. The cell cup of button cells have an inner radius which is essentially constant in the region in the direction of the cut edge.02-02-2012
20120028109ELECTROCHEMICAL DEVICE - In an electrochemical device having an element main body 02-02-2012
20120028108ACTIVE MATERIAL FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK, AND VEHICLE - According to one embodiment, there is provided an active material for a battery. The active material comprises a monoclinic β-type titanium composite oxide which contains fluorine.02-02-2012
20130196213GALVANIC CELL FOR AN ACCUMULATOR - The galvanic cell according to the invention comprises at least one current conductor and a casing. Said casing at least partially surrounds said galvanic cell. A contact area is assigned to said casing. The casing is at least partially materially engaged with the current conductor via the contact area. The casing comprises at least one first layer and one second layer. The materials of said first layer and said second layer of the casing are different in respect to at least one chemical material.08-01-2013
20120034511SEALED BATTERY - A sealed battery with an electrode assembly and electrolyte enclosed in a battery case is provided, where a connection member can be attached to the battery case without requiring large space while avoiding increasing the length of the lead wire. The sealed battery includes: a battery case enclosing an electrode assembly and electrolyte, for serving as a terminal of one polarity of the electrode assembly; an external terminal provided on the battery case in such a way that it is electrically insulated from the battery case, for serving as a terminal of another polarity of the electrode assembly; and a sealant member for sealing a fill port for the electrolyte provided side by side with the external terminal on the battery case. A connection member to which a lead wire is to be connected is provided on the battery case to cover at least part of the sealant member.02-09-2012
20120045687NEGATIVE ACTIVE MATERIALS, LITHIUM ION BATTERIES, AND METHODS THEREOF - Methods of preparing negative active materials and negative active materials are provided herein. The preparation methods include: A) mixing a carbon material, an organic polymer, a Sn-containing compound—optionally with water—to obtain a mixed solution system; B) adding a complexing agent into the mixed solution system obtained in step A optionally while stirring to form an intermediate solution; C) adding a reducing agent into the intermediate solution obtained in step B to a reaction product; D) optionally filtering, washing and then drying the reaction product to obtain the negative active material.02-23-2012
20120088146RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly undergoing charging and discharging, a pressurization holder covering the electrode assembly and fixing the electrode assembly, a positive terminal and a negative terminal electrically connected to the electrode assembly, and a case accommodating the electrode assembly and the pressurization holder in a state in which the positive terminal and the negative terminal protrude from the case.04-12-2012
20130209865Cathode For Lithium Secondary Battery And Lithium Secondary Battery Comprising The Same - Disclosed is a cathode for a lithium secondary battery and a lithium secondary battery comprising the same. The cathode may include a current collector, a first composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the current collector, and a second composite layer formed from a mixture of olivine-type lithium iron phosphate cathode active material powder and a binder on the first composite layer. A specific surface area of the olivine-type lithium iron phosphate cathode active material powder in the second composite layer may be at least 1.2 times larger than that of the olivine-type lithium iron phosphate cathode active material powder in the first composite layer. The cathode for a lithium secondary battery has excellent safety, high energy density, and high output performance.08-15-2013

Patent applications in class Cell enclosure structure, e.g., housing, casing, container, cover, etc.

Patent applications in all subclasses Cell enclosure structure, e.g., housing, casing, container, cover, etc.