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Electric battery cell making

Subclass of:

029 - Metal working

029592000 - METHOD OF MECHANICAL MANUFACTURE

029592100 - Electrical device making

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
029623200 Including sealing 45
029623500 Including coating or impregnating 45
029623400 Including adhesively bonding 10
029623300 Including laminating of indefinite length material 3
20090193648LITHIUM ION SECONDARY BATTERY AND MANUFACTURE THEREOF - A method of manufacturing a lithium ion secondary battery comprising the steps of: forming a laminate by laminating an electrolyte green sheet and a positive electrode green sheet; and sintering the laminate is provided. At least one of the electrolyte green sheet and the positive electrode green sheet contains an amorphous oxide glass powder in which a crystalline having a lithium ion conducting property is precipitated in the step of sintering. A solid state battery produced in accordance with the method is provided.08-06-2009
20100154205Battery and method of producing the same - A battery having an electrode unit in which edges of electrode plates are mechanically and electrically connected to a fixing and conducting plate is obtained. A projection is formed at an edge of each electrode plate, and projections are inserted into a grove formed on the fixing and conducting plate. Energy beam is radiated to the fixing and conducting plate along a wall defining the groove, and metal forming the groove is melted and fills a gap between the projection and the groove. The filling metal is solidified at a condition that the melted metal surrounds the projection. The electrode plate is firmly connected to the fixing and conducting plate by a combination of the projection and the surrounding metal. The electrode plates are stably maintained at a positional relationship that the electrode plates extend parallel with each other leaving a gap between adjacent electrode plates, and the electrode plates are connected to the fixing and conducting plate with a reliable electric conductivity.06-24-2010
20120297612CROSSLINKING POLYMER-SUPPORTED POROUS FILM FOR BATTERY SEPARATOR AND METHOD FOR PRODUCING BATTERY USING THE SAME - The method for producing a battery, includes the steps of: laminating electrodes on the crosslinking polymer-supported porous film to prepare a laminate of crosslinking polymer-supported porous film/electrodes; placing the laminate in a battery container; and pouring an electrolyte solution containing a cation polymerization catalyst in the battery container to induce cation polymerization and crosslinking of the crosslinking polymer, thereby at least partially gelling the electrolyte solution to adhere the porous film and the electrodes.11-29-2012
Entries
DocumentTitleDate
20110192020CORE PACK MANUFACTURING APPARATUS - A core pack manufacturing apparatus for preventing or substantially preventing an iron from contacting a cell or a protective circuit part in a process of soldering a connection tab of the cell to a connection terminal of the protective circuit part. A core pack manufacturing apparatus for soldering a connection tab connected to a cell to a connection terminal of a protective circuit part includes a cap including a first cover configured to cover the cell, and a second cover extending from a side of the first cover and configured to cover the protective circuit part, the second cover having an opening part configured to expose the connection tab and the connection terminal through the second cover for soldering.08-11-2011
20100115761Battery Connection Device and Method of Operation Thereof - A single battery connection device that allows for connection both to a battery post and to a battery side terminal. Regardless of whether the device is connected to the battery post or side terminal, the device may be used as part of a four-point Kelvin connection to the battery. Also, a method of connecting to either to a battery post or to a battery side terminal using a single device.05-13-2010
20120174386ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCTION THEREOF - An electrochemical device of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator. The separator includes a first porous layer composed mainly of a thermoplastic resin and a second porous layer composed mainly of insulating particles with a heat-resistant temperature of 150° C. or higher. The first porous layer is disposed to face the negative electrode.07-12-2012
20130036603PRIMARY ALKALINE BATTERY - A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.02-14-2013
20100043210METHOD OF MANUFACTURING FUEL CELL BASED POWER GENERATOR - A method includes assembling a top portion of a proton exchange membrane fuel cell based power generator that includes an anode cover, fuel cell, top portion of a valve assembly and fuel container cover. A bottom portion of the power generator that includes a fuel container with fuel, an opening for the top portion of the valve assembly, and a diaphragm portion of the valve assembly is also assembled. The top portion of the power generator is then attached to the bottom portion such that the bottom portion is a cathode of the power generator.02-25-2010
20100024203MANUFACTURING METHOD OF ELECTRODE FOR BATTERY - This invention relates to a method of manufacturing an electrode for a secondary battery, which enables cost savings and the manufacture of products having various sizes and shapes. The method includes (A) preparing an electrode plate, (B) cutting the electrode plate to conform to the width of the electrode, thus providing a unit electrode plate, and (C) removing at least one of the corner regions of the unit electrode plate.02-04-2010
20120180307LITHIUM-MANGANESE-TITANIUM CONDUCTIVE MATERIAL - This invention relates to a process to make a lithium-manganese-titanium-containing compound, which can be used as an electrode material in a lithium ion battery. The process dissolves the constituent materials in a polar, organic solvent to form a compound described by the formula LiMn07-19-2012
20100325877POROUS FILM HAVING REACTIVE POLYMER LAYER THEREON FOR USE IN BATTERY SEPARATOR, AND USE OF THE POROUS FILM - The present invention relates to a reactive polymer layer-supported porous film for battery separator, including: a porous film substrate; and a reactive polymer layer supported on the porous film substrate, the reactive polymer layer having a thickness of 2 μm or less and being obtained by a crosslinking reaction between a polyfunctional isocyanate and a crosslinkable polymer having both a reactive group capable of reacting with an isocyanate group and a cationically polymerizable functional group in the molecule thereof, in which the reactive polymer layer has a plurality of through-holes having an average pore diameter of 5 μm or less.12-30-2010
20130047422MANUFACTURING METHOD OF COMPOSITE OXIDE AND MANUFACTURING METHOD OF POWER STORAGE DEVICE - An object is to reduce variation in shape of crystals that are to be manufactured. Raw materials are each weighed, solutions containing the respective raw materials are formed in an environment where an oxygen concentration is lower than that in air, the solutions containing the respective raw materials are mixed in an environment where an oxygen concentration is lower than that in air to form a mixture solution, and with use of the mixture solution, a composite oxide is formed by a hydrothermal method.02-28-2013
20090094822METHOD FOR MANUFACTURING SECONDARY BATTERY AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY - A method for producing a secondary cell according to the present invention includes step (A) of putting a solution having an electrochemically reversibly oxidizable/reducible organic compound and a supporting electrolyte dissolved therein into contact with a positive electrode active material, thereby oxidizing or reducing the positive electrode active material; and step (B) of accommodating the oxidized positive electrode active material and a negative electrode active material in a case in the state of facing each other with a separator being placed therebetween, and filling the case with an electrolyte solution. By oxidizing or reducing the positive electrode active material, lithium ions or anions as the support electrode are incorporated into the positive electrode active material.04-16-2009
20130067726LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - An object is to improve the cycle performance by improving the reactivity between lithium and a negative electrode active material in the case where an alloy-based material such as silicon is used as the negative electrode active material. A method of manufacturing a lithium secondary battery including a positive electrode including a positive electrode active material into/from which lithium can be inserted/extracted, a negative electrode including a negative electrode active material into/from which lithium can be inserted/extracted, and an electrolyte solution is provided. The method includes the steps of electrochemically inserting lithium into the negative electrode with use of a counter electrode before the lithium secondary battery is assembled, electrochemically extracting part of the lithium inserted into the negative electrode after the insertion, and assembling the lithium secondary after the extraction.03-21-2013
20130055559STATIONARY SEMI-SOLID BATTERY MODULE AND METHOD OF MANUFACTURE - A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.03-07-2013
20130061459DIFFUSION LAYER FOR AN ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING SUCH A DIFFUSION LAYER - A method for producing a diffusion layer of an electrochemical device, including: superimposition of multiple unidirectional webs of carbon filaments, filaments of each web positioned parallel with, and next to, one another; needle punching of the webs, breaking a proportion of the filaments such that broken portions of the filaments are tangled with other filaments of the webs; and cutting a proportion of the multiple unidirectional webs, the carbon filaments forming one electrically conducting outer surface of the diffusion layer. The needle punching is accomplished all the way through the multiple unidirectional webs, and/or through two principal opposite faces of the multiple unidirectional webs, and/or with an impact density against the multiple unidirectional webs of between approximately 100 and 300 impacts/cm03-14-2013
20130160283CONTINUOUS PRISMATIC CELL STACKING SYSTEM AND METHOD - A continuous prismatic cell stacking system and method is disclosed. The system comprises: (a) devices on the system to supply a separator layer, a cathode layer, and an anode layer; and (b) one cutter on the frame for cathode layer and anode layer; and (c) conveyer system to convey the stacked cell. The conveyer system comprises a rotary disc and a transfer belt. The said rotary disc is round shape, or multi-equilateral shape, or track & field shape.06-27-2013
20110219607CATHODE ACTIVE MATERIALS AND METHOD OF MAKING THEREOF - A method of making a primary alkaline battery that includes a cathode including λ-MnO09-15-2011
20100018034Method for producing nonaqueous electrolyte secondary battery - Disclosed is a nonaqueous electrolyte secondary battery which is suppressed in increase of internal resistance, while having high capacity retention rate and small battery swelling even after a long use. Specifically disclosed is a method for manufacturing a nonaqueous electrolyte secondary battery, which is characterized by using a positive electrode containing a positive electrode active material having an α-NaFeO2 crystal structure and the following chemical composition: LixMnaNibCocOd (wherein 001-28-2010
20110289767ENERGY STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - An energy storage device whose discharge capacity can be improved and a method for manufacturing the energy storage device are provided. A method for manufacturing an energy storage device, in which a metal element is dispersed over a current collector, and a crystalline silicon layer including a whisker is formed as an active material layer over the surface of the current collector on which the metal element is dispersed by low pressure chemical vapor deposition (LPCVD) in which heating is performed using a deposition gas containing silicon. Having whiskers in the active material layer as described above, the surface area of the active material layer is increased; thus, the discharge capacity of the energy storage device can be increased.12-01-2011
20110289766WINDER FOR ELECTRODE ASSEMBLY OF RECHARGEABLE BATTERY AND ELECTRODE ASSEMBLY MANUFACTURING METHOD USING THE SAME - An exemplary embodiment provides a winder for an electrode assembly of a rechargeable battery capable of improving productivity by shortening a winding cycle. A winder for an electrode assembly of a rechargeable battery according to an exemplary embodiment includes: a nip roll catching and feeding a positive plate and a negative plate, and a separator; a rotor disposed below the nip roll to rotate; and a plurality of winding cores arranged in the rotor at a regular interval in a rotation direction of the rotor to rotate and move forward or backward from the rotor, wherein the center of the nip roll, the center of any one winding core among the plurality of winding cores, and one surface of an electrode assembly of another winding core which is winding-completed form a straight line.12-01-2011
20100095517METHOD AND APPARATUS FOR MANUFACTURING METAL SEPARATOR FOR FUEL CELL - The present invention provides an apparatus and method for manufacturing a metal separator for a fuel cell, which can manufacture large-sized metal separators in large quantities using metal plates such as stainless steel by thermoplastic deformation using an incremental and synchronized rubber molding process.04-22-2010
20110083320Process for Making a Catalytic Electrode and Electrochemical Cell Using the Electrode - A process for making a catalytic electrode, a process for making an electrochemical cell with a catalytic electrode, and an electrochemical cell made according to the process. The catalytic electrode has an active layer comprising a catalytic material, an electrically conductive material and a binder, and a gas diffusion layer including a material that is permeable to gas entering or escaping from the cell but essentially impermeable to electrolyte. The gas diffusion layer is adhered to the active layer by a patterned pressure bonding process to provide the catalytic electrode in which the entire gas diffusion area is adhered to the active layer, with areas of relatively high and relatively low adhesion. The electrode has a high overall bond strength, and the permeability of the gas diffusion layer remains high it has been adhered to the active layer to provide excellent high power capability.04-14-2011
20110197434CATHODES AND CATHODE MIXTURES INCLUDING OZONATED MANGANESE DIOXIDE - Ozonated manganese dioxide is prepared by an ozonation process and utilized as a cathode active material. An ozone containing gas stream contacts manganese dioxide and produces ozonated manganese dioxide with high efficiency. After preparation, ozonated manganese dioxide is stored for a limited time at a low temperature and incorporated into a cathode active material for alkaline batteries.08-18-2011
20120096707Battery and Method for Manufacturing Battery - A battery includes a power generation element, a case member having an accommodation recess for accommodating the power generation element and including first and second sides, and an opening closure member for closing the accommodation recess. A case inside part of the opening closure member contacts a first center edge of a first edge of the first side to prevent warping deformation of the first edge toward the accommodation recess, and is spaced from a first-first end and a first-second end. In addition, the opening closure member contacts a second center edge of a second edge of the second side to prevent warping deformation of the second edge toward the accommodation recess, and is spaced from a second-first end and a second-second end. The case member and the opening closure member are secured to each other at a welded part around their entire periphery.04-26-2012
20120096708Electrolyte Additive for Non-Aqueous Electrochemical Cells - An electrochemical secondary cell is disclosed. The cell includes a cathode, an anode, a current collector including aluminum, and an electrolyte containing a perchlorate salt and a second salt. The electrolyte is essentially free of LiPF04-26-2012
20120110836METHOD FOR PREPARING SECONDARY BATTERY - Provided is a secondary battery inner cell stack stacking apparatus and method that prepare a secondary battery inner cell stack of a Z-folding stacking format. To be specific, provided is a secondary battery inner cell stack stacking apparatus and method according to a method for performing multiple insertions on a plurality of anode plates and cathode plates at once in both sides after folding a separator in a zigzag shape in advance.05-10-2012
20120110835METHOD OF FORMING AN ELECTRODE ASSEMBLY - When electrode films are prepared for lithium electrochemical cells, problems are often encountered in laminating the films with an appropriate intervening electrolyte layer. This presents a significant challenge because proper alignment of the three layers and complete lamination at the interfaces are crucial to good cell performance. Often lamination is imperfect with gaps and defects at the interfaces. The disclosure herein describes a method of casting or extruding a polymer electrolyte directly onto an electrode film to create an electrode assembly with a continuous, defect-free interface. In some arrangements, there is some slight intermixing of the layers at the interface. A complete cell can be formed by laminating two such electrode assemblies to opposite sides of an additional electrolyte or to one another.05-10-2012
20090288290POLYMER ELECTROLYTE FUEL CELL, ELECTROLYTE MATERIAL THEREFORE AND METHOD FOR ITS PRODUCTION - An electrolyte material for a polymer electrolyte fuel cell, which is made of a copolymer comprising repeating units based on CF11-26-2009
20090282672METHOD FOR MANUFACTURING A BIPOLAR BATTERY WITH A GASKET - A gasket is for use in a starved electrolyte bipolar battery. The gasket may be made from a hydrophobic material in the shape of a frame to prevent the creation of an electrolyte path between adjacent cells when mounted in a battery. The frame may be designed to at least partially encompass a biplate when mounted in a bipolar battery, and include a device or way to permit gas passage through the gasket. The gasket may be made from a material with deformable properties to provide a sealing to a biplate and/or endplate when mounted in a bipolar battery, whereby an outer pressure tight seal of the battery may be obtained. A starved bipolar battery and a method for manufacturing a starved bipolar battery are also disclosed.11-19-2009
20090265920METHOD OF MAKING NON-AQUEOUS ELECTROCHEMICAL CELL - A method of making a lithium electrochemical cell includes treating the cathode active material with an agent that includes lithium but not sodium. A cathode including the cathode active material, an anode, a separator, and an electrolyte are assembled in a housing to provide a cell containing less than 1500 ppm by weight of sodium.10-29-2009
20080289171METHOD FOR ASSEMBLING A STACKED PLATE ELECTROCHEMICAL DEVICE - The present invention relates to an improved method for assembling a stacked plate electrochemical device. According to an exemplary embodiment of the invention, two pairs of electrodes are provided: two cathodes and two anodes. Each electrode in each pair is connected to the other electrode via conductive interconnects. The pairs of electrodes are then folded together forming an electrode package, such that the cathodes and anodes alternate position within the electrode package. A number of electrode packages are then stacked together depending on the desired number of electrodes in the stacked plate cell. The stacked electrodes are then placed in a cell can and the conductive interconnects are connected to the cell can terminals to form the stacked plate electrochemical device. Processes according to exemplary embodiments of the present invention result in a faster, more efficient assembly time for the stacked plate electrochemical device.11-27-2008
20130019468ANODIZED METALLIC BATTERY SEPARATOR HAVING THROUGH-PORES - A battery includes an anode and a cathode. An electrolyte material is disposed between the anode and the cathode. A separator is disposed between the anode and the cathode. The separator comprises an anodized metal oxide layer having substantially straight and parallel through-pores, wherein the anodized metal oxide of the porous anodized metal oxide layer is selected from the group consisting of aluminum oxide, titanium oxide, zirconium oxide, niobium oxide, tungsten oxide, tantalum oxide, and hafnium oxide.01-24-2013
20110219608ELECTROCHEMICAL BATTERY AND METHOD FOR MAKING SAME - A method for making a battery is disclosed which comprises providing a plurality of Electrochemical Cell (EC) bundles; providing a current collecting terminal having first and second ends; electrically connecting the projections of the sheet like electrodes extending from one end a first EC bundle together via the first end of the current collecting terminal; electrically connecting the projections of the sheet like electrodes extending from one end of a second EC bundle together via the second end of the current collecting terminal such that the first and second EC bundles are mechanically and electrically connected together and form a string of at least two EC bundles; and folding the string of at least two EC bundles by bending the current collecting terminal connecting the at least two EC bundles together such that the first and second EC bundles are positioned in a side by side relationship.09-15-2011
20090070988Process of producing nonaqueous secondary battery - A process of producing a nonaqueous secondary battery comprising the steps of disposing a separator between a member containing a silicon-based material and a positive electrode, together with interposing a metallic lithium layer between the separator and the member to obtain an assembly, and aging the resulting assembly for a prescribed period of time to alloy lithium with the silicon-based material. Lithium alloying is preferably performed to a degree such that the amount of lithium in the silicon-based material is 5% to 50% based on the theoretical initial charge capacity of silicon. When the positive electrode has a lithium-containing active material for positive electrode, lithium alloying is preferably performed to a degree satisfying formula (1): 4.4A−B≧C, where A is the number of moles of silicon in the member containing the silicon-based material; B is the number of moles of lithium in the lithium-containing active material for positive electrode; and C is the number of moles of lithium to be alloyed.03-19-2009
20090211082SECONDARY BATTERY FOR MEDIUM AND LARGE SIZE BATTERY MODULE - Disclosed herein is a secondary battery for medium-sized or large-sized battery modules. The secondary battery is assembled while an electrically connecting member used at the time of manufacturing a battery module is previously welded to at least one of electrode terminals of the secondary battery.08-27-2009
20090249614Battery - Ozonated manganese dioxide is prepared by an ozonation process and utilized as a cathode active material. An ozone containing gas stream contacts manganese dioxide and produces ozonated manganese dioxide with high efficiency. After preparation, ozonated manganese dioxide is stored for a limited time at a low temperature and incorporated into a cathode active material for alkaline batteries.10-08-2009
20100162558OUTER CASING OF NON-AQUEOUS ELECTROLYTE BATTERY AND PRODUCTION METHOD THEREFOR - An outer casing of a non-aqueous electrolyte battery is capable of being mass-produced as well as thin and resistant to damage. The outer casing 07-01-2010
20100146776METHOD FOR PRODUCING A SECONDARY CELL HAVING FLAT WOUND ELECTRODE BODY - A method for producing a secondary cell having a flat wound electrode body that inhibits the bending of the electrode board caused by charging and discharging and inhibits resulting swelling of the cell and deterioration of cycle characteristics is provided. The method has the steps of: winding, with a winding core, a positive electrode board, a negative electrode board, and a separator provided between the positive and negative electrode boards, and fixing the winding end, thereby preparing an approximately cylindrical electrode body; after the step of preparing the electrode body, deforming the electrode body into a shape with an approximately oval cross section by pressing the approximately cylindrical electrode body from a direction perpendicular to the winding axis, and rotating the deformed electrode body in the winding direction, thereby relaxing the winding state; and after the relaxation steps, pressing the electrode body into the flat wound electrode body.06-17-2010
20100192361Low cost electrical terminals manufactured from conductive loaded resin-based materials - Electrical terminals are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, aluminum fiber, or the like.08-05-2010
20100154204METHOD FOR FABRICATING FUEL CELL AND ANODE CATALYST LAYER THEREOF - The present invention relates to a method for fabricating a fuel cell including a step of producing a unit cell, the step of producing a unit cell including a step of producing at least one unit cell including an anode including an anode catalyst layer containing an anode catalyst, a cathode including a cathode catalyst layer containing a cathode catalyst, and an electrolyte membrane interposed between the anode and the cathode, in which the step of producing a unit cell includes a step (i) of immersing the anode catalyst in an acid-containing solution under the presence of a proton-conductive ion-exchange resin, the proton concentration in the acid-containing solution being 0.1 mol/L or more and 2 mol/L or less.06-24-2010
20120102725Battery Separator - Resinous fibers of nanometer to micrometer width dimensions are drawn from a multi-component system by a melt extrusion process. The process includes a step of combining a fiber resin with a water-soluble carrier resin to form a resinous mixture. The resinous mixture is extruded to form an extruded resinous mixture, the extruded resinous mixture having strands of the fiber resin with the carrier resin. The extruded resinous mixture is then contacted with water to separate the strands of the fiber resin from the carrier resin. A fibrous sheet is then formed from the strands of fiber resin. The fibrous sheets are useful in filtration, as battery separators in Li ion batteries and as diffusion layers in fuel cells.05-03-2012
20100223780METHOD FOR PRODUCING PRISMATIC SECONDARY CELL - A method for producing a prismatic secondary cell housing a flat electrode assembly includes disposing a first current-collecting member onto a first to-be-welded portion at a flat portion of an edge of the electrode assembly where a core-body exposed portion of the first electrode protrudes. A first receiving member is disposed onto a plane opposing the flat portion. The first current-collecting member, the core-body exposed portion, and the first receiving member are resistive-welded with the core-body exposed portion between the other members. A second current-collecting member is disposed onto a second to-be-welded portion at a position of the flat portion distanced from the first to-be-welded portion while avoiding contact between the collecting members. A conductive connecting member is placed between the collecting members or between the receiving members. The conductive connecting member and its abutting members are welded. One of the members is electrificably connected to an external output terminal.09-09-2010
20100000078JELLY-ROLL TYPE ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab.01-07-2010
20090265921METHOD OF MAKING NON-AQUEOUS ELECTROCHEMICAL CELL - A method of making a lithium electrochemical cell includes treating the cathode active material with an agent that includes lithium but not sodium. A cathode including the cathode active material, an anode, a separator, and an electrolyte are assembled in a housing to provide a cell containing less than 1500 ppm by weight of sodium.10-29-2009
20090320277HIGH ENERGY CELL FUSIBLE LINK - A means and method for rendering high energy density cells safe in compliance with transportation requirements, with the incorporation of a cell fusible terminal which is added on or incorporated within the cell terminals to prevent over current and hazards from developing due to external short circuits. As a result, cells made in accordance with the method of the present invention can be shipped by common carriers even though they are classified as hazardous materials and can be readily used and normally discharged with such fusible link element thereon. The fusible terminal comprises a non conductive base element upon which is mounted a fusible link element and wherein the non-conductive or insulative base element comprises means for connection to a terminal of the cell or battery and to an external component.12-31-2009
20090113697MANUFACTURING METHOD FOR BATTERY INCLUDING ELECTRODE ASSEMBLY FORMED BY WINDING - A manufacturing method for a battery, including the steps of: preparing a positive electrode plate and a negative electrode plate which are both belt-like; performing a curving work onto an end of at least one of the positive electrode plate and the negative electrode plate so that the end has a curvature, the end being located in a longitudinal direction of the plate; and after performing the curving work, performing a winding work by winding the positive electrode plate and the negative electrode plate with a separator there between all together to produce an electrode assembly. In the winding step, the winding work is performed such that the end having the curvature is wound last in the winding work and such that the curvature curves toward an internal side of the electrode assembly.05-07-2009
20090038144Method for manufacturing electrode plate for battery - A method for manufacturing an electrode plate for a battery comprises the steps of intermittently transferring a strip-shaped electrode plate material (02-12-2009
20100293779ELECTROCHEMICAL DEVICE COMPRISING ALIPHATIC MONO-NITRILE COMPOUND - Disclosed is a cathode comprising a complex formed between the surface of a cathode active material and an aliphatic mono-nitrile compound, and an electrochemical device comprising the cathode. A non-aqueous electrolyte containing a lithium salt, a solvent and an aliphatic mono-nitrile compound, and an electrochemical device comprising the electrolyte are also disclosed. The electrochemical device shows excellent low-temperature characteristics, high-temperature life characteristics and safety.11-25-2010
20110126400Method of manufacturing lithium secondary battery - A method of manufacturing a lithium secondary battery, the method includes the operations of injecting a lithium salt; arranging an electrode assembly comprising a positive electrode, a separator, and a negative electrode; and injecting a solvent excluding the lithium salt.06-02-2011
20100319187Manufacturing Method of Stacked Electrodes By Winding Type Electrode Stacking and Stacked Electrode Thereby - The present invention relates to a electrode stacking method, wherein electrodes are stacked in such a manner that the electrodes are disposed to face each other on both sides of a separation layer to which predetermined tension force is applied along the longitudinal direction of said separation layer, and the electrode assembly is turned so that another separation layer is formed outside the electrodes. According to the rechargeable lithium ion batteries in accordance with the present invention, the electrode stack in which the arrangement of anode electrodes and cathode electrodes is not disordered because uniform stress is applied to the entire battery and the separation layer maintains a constant tension force can be fabricated. Accordingly, the lifespan of a rechargeable lithium ion battery can be increased, and the input and output characteristic of the battery can be improved.12-23-2010
20110126401HEAT-RESISTANT NONWOVEN FABRIC - The present invention discloses a heat-resistant nonwoven fabric comprising a layer having heat resistance property and a layer having anti-oxidative property, wherein the heat-resistant nonwoven fabric has a puncture strength of 0.5 N or more after heat treatment at 250° C. for 50 hours; and a position of an absorption band (A) showing a maximum infrared absorbance in the region of 500 cm06-02-2011
20110005065BATTERY STRUCTURES, SELF-ORGANIZING STRUCTURES AND RELATED METHODS - An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.01-13-2011
20110239445METHOD FOR REUSING SECONDARY BATTERY - A method for reusing a secondary battery by reusing unit cells or battery modules constituting reclaimed assembled batteries (or battery packs) to reconstruct a new assembled battery is disclosed. Assembled batteries are reclaimed, and disassembled into battery modules. The battery modules are selected based on battery characteristics such as an open-circuit voltage (OCV) and the like using an absolute acceptable range and a relative acceptable range, and a new assembled battery is rebuilt. The relative acceptable range is an acceptable range which is set for each assembled battery, and is set to have its center at an average value of a battery characteristic distribution.10-06-2011
20090217512Composite 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
20100058578METHOD OF MAKING AND USING COMPOSITION AND ENERGY STORAGE DEVICE - A method is provided that includes forming brass from zinc powder and copper powder in the presence of a sodium electrolyte. In one aspect, an electrochemical cell is loaded with copper and zinc, the electrochemical cell is heated, and at least one charge/discharge cycle of the electrochemical cell is performed. Alpha brass is converted to gamma brass in presence of zinc and sodium. Methods of producing and operating an energy storage device are also provided.03-11-2010
20110072647Battery Cathodes - Batteries and related compositions and methods are disclosed. In some embodiments, a method of making a battery can include heating at least one cathode including a cathode material in an atmosphere including oxygen, heating the cathode in a vacuum, adding the cathode into a housing, adding a separator into the housing, and adding an anode into the housing.03-31-2011
20110067227METHOD OF MANUFACTURING AN ELECTRODE ASSEMBLY FOR A RECHARGEABLE BATTERY - A method of manufacturing an electrode assembly for a rechargeable battery is disclosed. The method comprises providing a first electrode plate comprising an active portion that is coated with a first active material and an inactive portion extending from an edge of the active portion of the first electrode plate; providing a second electrode plate comprising an active portion that is coated with a second active material and an inactive portion extending from an edge of the active portion of the second electrode plate; providing a separator; winding the first electrode plate, the second electrode plate and the separator, the separator interposed between the first and second electrode plates; and removing parts of the inactive portion of the first electrode plate and the inactive portion of the second electrode plate to form a first plurality of electrode tabs for the first electrode plate and a second plurality of electrode tabs for the second electrode plate.03-24-2011
20090288289NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The method for producing a non-aqueous electrolyte secondary battery of the invention includes: (a) a step of preparing an electrode mixture slurry, (b) an ionization step of oxidizing and ionizing a metal impurity present in the electrode mixture slurry, and (c) a step of producing an electrode by using the electrode mixture slurry after the ionization step. In the invention, when the electrode mixture is in the form of a slurry, the metal impurity contained in the electrode mixture is ionized to minimize the amount of the impurity. Therefore, the invention can provide a highly reliable non-aqueous electrolyte secondary battery while minimizing a decrease in production yield by the metal impurity.11-26-2009
20090139082ELECTRIC COUPLING OF A CONNECTION TO AN ELECTROCHEMICAL BUNDLE - The subject of the present invention is a system for electric coupling of a plane connection (06-04-2009
20120030932Method of Controlled Cell-Level Fusing Within a Battery Pack - A method is provided that achieves improved battery pack performance, system reliability and system safety while impacting only a small region of the battery pack/battery module, and thus having only a minor impact on battery pack cost, complexity, weight and size. The battery pack/battery module is designed such that the fusible interconnects associated with a single battery, or a specific fusible interconnect associated with a single battery, will be the last interconnect(s) to fuse during a short circuit event. The risk of sustained arcing for the predetermined interconnect(s) is minimized through the use of rapid clearing interconnects. As a result, the risk of damage and excessive heating is also minimized.02-09-2012
20120144660Manufacturing method of a battery - An exemplary manufacturing method for a battery is provided in the present invention. The manufacturing method includes step S06-14-2012
20100281682BIPOLAR UNIT FOR FUEL CELL PROVIDED WITH POROUS CURRENT COLLECTORS - The invention describes a bipolar unit consisting of a pair of metal plates at least one of which is corrugated, fixed by continuous and hydraulically impervious connections, and provided on the external surfaces thereof with porous electric current collectors also suitable for the distribution of the gaseous reactants. The collector facing the plate corrugations is interpenetrated therein, thereby achieving a continuous contact. Two bipolar units of the invention and one interposed MEA element are assembled to form an elementary fuel cell with an improved electric current distribution. Furthermore the channels formed between the mutually contacting surfaces of the plate pair by the corrugations of at least one of the plates of each bipolar unit, are crossed by a coolant allowing to optimally adjust the cell operative temperature.11-11-2010
20100281681Method for Manufacture of Battery Pouch Terminals - A manufacturing method for battery pouches enables the subsequent welding together of a stack of battery terminals with an interconnect member to form a battery pack. According to the method, a plurality of pouches containing energy storage medium and having positive terminals and negative terminals extending therefrom are supported side by side in a pouch supporting fixture and lids are lowered to clamp the pouches against movement. The terminals are clamped against movement by clamping the terminals at the bases thereof. Then, the end portions of the terminals are bent by die mechanisms to provide an offset shape in each terminal by which when the pouches are stacked adjacent one another, the positive terminals will contact one another and the negative terminals will contact one another. The clamping and bending are performed in a way that prevents the flow of electrical current between the positive and negative terminals.11-11-2010
20110162198METHOD OF PRODUCING SOLID ELECTROLYTE-ELECTRODE ASSEMBLY - A method of producing a solid electrolyte-electrode assembly including a pair of electrodes and a solid electrolyte layer disposed between the pair of electrodes, the method including applying pressure to a solid electrolyte and fabricating a solid electrolyte layer; fabricating a stack by stacking an electrode layer on at least one side of the solid electrolyte layer; and applying pressure in a stacking direction of the stack while heating the stack.07-07-2011
20110167625METHOD FOR PRODUCING ALL SOLID LITHIUM BATTERY - The main object of the present invention is to provide a method for producing an all solid lithium battery, capable of easily performing dew point control in a battery assembly step. The present invention solves the above-mentioned problems by providing a method for producing an all solid lithium battery, comprising the steps of: preparing a material composition by adding Li07-14-2011
20110067228METHOD OF FABRICATING STRUCTURED PARTICLES COMPOSED OF SILICON OR A SILICON-BASED MATERIAL AND THEIR USE IN LITHIUM RECHARGEABLE BATTERIES - Pillared particles of silicon or silicon-comprising material and a method of fabricating the same are disclosed. These particles may be used to create both a composite anode structure with a polymer binder, a conductive additive and a metal foil current collector, and an electrode structure. The structure of the particles overcomes the problems of charge/discharge capacity loss.03-24-2011
20090300902COLD-ROLLED STEEL SHEET AND PROCESS FOR PRODUCING THE SAME - A cold-rolled steel sheet that is suitable for battery cases and has low anisotropy is composed of, by mass %, C: ≦0.0030%, Si: ≦0.02%, Mn: 0.15 to 0.19%, P: ≦0.020%, S: ≦0.015%, N: ≦0.0040%, Al: 0.020 to 0.070%, Nb: 1.00≦Nb/C (atomic equivalent ratio)≦5.0, B: 1 ppm≦B-(11/14)N≦15 ppm (in the expression, B and N denote the contents of the respective elements), and the balance: being Fe and inevitable impurities, and has a planar anisotropy Δr of the r-value in the range of −0.10≦Δr≦0.10. In a process for producing the steel sheet, the cold rolling is performed at a rolling ratio of 70 to 87%, and then annealing is performed on a continuous annealing line at an annealing temperature of from the recrystallization temperature to 830° C.12-10-2009
20110131799METHOD FOR MANUFACTURING ELECTRODE SHEETS AND APPARATUS THEREFOR - According to the method for manufacturing electrode sheets, in a first cutting step, an original sheet, including a belt-shaped metal foil and an electrode material coated thereon in a lengthwise direction to form a plurality of coated portions spaced at a predetermined gap, is cut at a location between the coated portions. In a pressing step, the original sheet strips having been cut in the first cutting step are pressed. In this case, the original sheet strips that are pressed by the rolling device are independent from each other. Therefore, the effect produced in rolling of the coated portions remains within each of the original sheet strips. In addition, distortions occurring in the original sheet strips can be prevented from affecting each other and the occurrence of wrinkles can be inhibited.06-09-2011
20110258845Method of Assembling Electric Storage Battery Packs - A method of assembling a battery assembly includes forming battery packs, each pack including battery cells and cooling passages extending along a length of the pack, connecting terminals of each pack to a dc source and charging each pack to a desired state of charge, installing battery packs on a tray located on an automatically guided cart, using the cart to carry the battery assembly to locations where method steps are performed including performing testing for fluid leaks in a cooling circuit comprising interconnected passages of each pack on the tray and installing electric circuits in the assembly.10-27-2011
20100031498METHOD AND APPARATUS FOR FUEL CELL STACK ASSEMBLY - A method and apparatus for assembling a fuel cell stack is disclosed, wherein the apparatus includes a plurality of dunnage cassettes adapted to cooperate with a plurality of containers, a fixture, and an assembly device to simultaneously assemble a plurality of membrane electrode assemblies together with a plurality of bipolar plates.02-11-2010
20120144661MANUFACTURING METHOD OF A BATTERY - A manufacturing method for a battery is provided in the present invention. The manufacturing method includes the steps of: S06-14-2012
20120144662METHOD FOR MANUFACTURING A FLAT-PLATE BATTERY - The present invention relates to a method for manufacturing a flat-plate battery. The method includes step S06-14-2012
20110107590STRUCTURED SILICON ANODE - A battery can be fabricated from a substrate including silicon. This allows the battery to be produced as an integrated unit. The battery includes a anode formed from an array of spaced elongated structures, such as pillars, which include silicon and which can be fabricated on the substrate. The battery also includes a cathode which can include lithium.05-12-2011
20110314663METHOD FOR PRODUCING A LIQUID ELECTROLYTE BATTERY - The invention relates to a method for making an electrolytic battery which is preferably used in movable facilities such as cars, boats and planes. The method comprises the following steps: Inserting of intermixing plates 12-29-2011
20100186220FABRICATION METHOD OF METAL SUPPORTED SOLID OXIDE FUEL CELL - Provided is a fabrication method of a metal supported solid oxide fuel cell (SOFC) which comprises a metal supporter, and an anode layer, an electrolyte and a cathode layer stacked in turn on the metal supporter. The fabrication method includes forming the anode layer and the electrolyte on the metal supporter; forming the green cathode layer by coating on the electrolyte a cathode slurry containing a cathode material; and in-situ sintering the green cathode layer by a normal operation of the metal supported SOFC.07-29-2010
20110179636INTERCALATION ANODE PROTECTION FOR CELLS WITH DISSOLVED LITHIUM POLYSULFIDES - Battery cells having lithium intercalation anodes protected by surface coatings and active sulfur cathodes, and methods for their fabrication, provide improved battery cell performance.07-28-2011
20120246914METHOD OF MANUFACTURING LITHIUM ION STORAGE DEVICE - There is provided a method of manufacturing a lithium ion storage device. A lithium ion storage device produced by the method includes a positive electrode having a positive electrode active material that contains a lithium-containing compound, and a negative electrode having an alloy-based negative electrode active material. A charge potential in a first cycle is higher than charge potentials in second and subsequent cycles.10-04-2012
20100050421FUEL CELL MANUFACTURING METHOD, FUEL CELL SEPARATOR, AND TRANSPORTATION SYSTEM OF THE SAME - A positioning mark (03-04-2010
20120311852MANUFACTURING METHOD OF NEGATIVE ELECTRODE PLATE FOR NON-AQUEOUS SECONDARY BATTERY AND MANUFACTURING METHOD OF NON-AQUEOUS SECONDARY BATTERY - Disclosed is a method of manufacturing a negative electrode plate for a non-aqueous secondary battery in which it is possible to assess whether or not a binder is localized in an electrode surface without lowering the productivity of the negative electrode plate for a non-aqueous secondary battery.12-13-2012
20120210567BATTERY PACK INCLUDING AN ELECTRIC HARNESS AND METHOD OF MANUFACTURING THE SAME - A battery pack including an electric coupling assembly. The battery pack includes a top housing, a bottom housing, a cell pad, a plurality of battery cells, a harness, and a circuit board. The harness includes a frame and electric coupler assembly having a plurality of internal and external electric couplings. The internal and external electric couplings include cell couplings and circuit board couplings. The internal and external couplings are held in place during manufacturing by links which are cut after the electric coupler assembly is molded into the frame.08-23-2012
20100101078NEGATIVE GRID FOR BATTERY - A method for producing a negative grid for a battery which includes providing a strip of battery grid material and performing a punching operation on the battery grid material to remove material and form a grid. The punching operation produces a negative battery grid having a plurality of grid wires bounded by a frame. The battery grid includes a top frame member. A first side frame member is coupled to the top frame member at a first end thereof. A second side frame member is coupled to the top frame member at a second end thereof. A bottom frame member is spaced apart from the top frame member and coupled to the first side frame member and the second side frame member. The negative grid does not include exposed wire ends that may puncture a polymeric separator when the negative grid is provided within the separator.04-29-2010
20120180308BATTERY FABRICATION METHOD - Provided is a battery fabrication method capable of collecting foils by reforming a collector with ease and at a high quality. The battery fabrication method is to fabricate a battery (07-19-2012
20120227253METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY - There is provided a lithium ion secondary battery exhibiting a high capacity retention rate over a long period. There is also provided a method for manufacturing a lithium ion secondary battery including a positive electrode, a negative electrode containing a negative electrode active material layer containing a graphite, an aprotic electrolyte solution containing a sulfonate ester having at least two sulfonyl groups, and a packaging material including a laminate film involving the positive electrode, the negative electrode and the aprotic electrolyte solution, the method including: enclosing the positive electrode, the negative electrode and the aprotic electrolyte solution in the packaging material to fabricate a lithium ion secondary battery before pre-charge; pre-charging the lithium ion secondary battery before pre-charge to fabricate a lithium ion secondary battery after pre-charge; and opening the enclosure of the packaging material of the lithium ion secondary battery after pre-charge, thereafter vacuum sealing the packaging material, and regularly charging the lithium ion secondary battery after pre-charge, wherein the current for the pre-charge is 0.05 to 0.25 C, and the voltage thereof is 3.3 to 3.5 V.09-13-2012
20120227252SILICATE CATHODE FOR USE IN LITHIUM ION BATTERIES - Silicate cathodes for lithium ion batteries are provided along with methods of forming a silicate. Olivine structures are substituted with a lithium ion. The substituted Olivine structures are combined to form flake-like sheets having an orientation that facilitates passage of lithium ions. Related methods of forming a cathode are provided.09-13-2012
20110119903CATHODE FOR BATTERY - Cathodes that include an active cathode material and a binder are described. The binder includes a first polymeric material and a second material.05-26-2011
20120266453METHOD FOR FORMING LOW-RESISTANCE ELECTRIC CONNECTION POINTS FOR A BATTERY CELL WITH TWO EXTERNAL NICKEL ELECTRODE TERMINALS - A method for forming low-resistance electric connection points for a battery cell with two external nickel electrode terminals, when the graphite alloy connecting member is brought into contact with the external nickel terminals of the battery cell, graphite will be separated out of the graphite alloy connecting member, and the nickel will be separated out of the external nickel terminals of the battery cell, and then the graphite and the nickel are dissolved into each other, so that the graphite alloy connecting member and the external nickel electrode terminals of the battery cell are melted and seamlessly connected. Hence, the resistance of the battery cell is reduced to the least, while the discharge and conductivity performance of the battery cell are improved.10-25-2012
20110225808METHOD FOR MANUFACTURING ELECTRODE PLATE FOR BATTERY - An electrode plate precursor on which an active material layer is formed by applying an active material onto at least one surface of a current collector in a lengthy belt shape by means of a die comprising a paste storing part where a paste containing the active material is accumulated and a discharge flow path discharging the above paste from the paste storing part. A plan view configuration of the discharge flow path is adjusted by adjusting a plan view configuration of thin plate-like members that are arranged respectively on both end portions of the discharge flow path so that the active material layer formed in the process has a uniform thickness throughout the entire length in the width direction of the electrode plate precursor.09-22-2011
20120297611Nickel-zinc battery and manufacturing method thereof - A cylindrical Ni—Zn battery includes a battery shell, an electrode assembly and a liquid electrolyte which are sealed within the shell. The electrode assembly, whose upper part is connected to a cap, includes a nickel cathode, zinc anode, and a composite membrane. The nickel cathode and zinc anode have an edge portion which are externally exposed and bent inwardly to form the anode and cathode conductive end respectively, and edges of the composite membranes are sealed together, so that the electrodes are contained in the membranes. The battery is characterized by the simple in structure, convenient installation, low cost, safety, characteristics of long-term storage, effectively preventing the growth of dendrite, long life, strong capability to resist shake, and good performance of large current discharging.11-29-2012
20120079712METHOD OF PRODUCING AN ELECTRODE FOR A LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING A LITHIUM SECONDARY BATTERY - A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li04-05-2012
20120079711PRESS ASSEMBLY AND METHOD FOR BENDING ELECTRICAL TERMINALS OF BATTERY CELLS - A press assembly and a method for bending electrical terminals of battery cells are provided. The assembly includes a supporting member that holds a body portion of a cell thereon. The cell has first and second electrical terminals. The assembly further includes a lower plate having first and second dies that hold the first and second electrical terminals, thereon. The assembly further includes an upper plate having third and fourth dies, and guide rods disposed between the lower plate and the upper plate. The upper plate moves vertically on the guide rods relative to the lower plate. The assembly further includes an actuation assembly moving the upper plate toward the lower plate such that the first electrical terminal is bent into a first predetermined shape between the first and third dies, and the second electrical terminal is bent into a second predetermined shape between the second and fourth dies.04-05-2012
20120279053METHOD FOR MANUFACTURING BATTERY - A current collector electrically connected to a first electrode plate or a second electrode plate includes a tubular current collection section. An external terminal electrically connected to the current collector includes a tubular terminal section into which the current collection section is inserted. The current collection section has, before being inserted into the terminal section, a greater outer diameter than the inner diameter of the terminal section. In the insertion process, the diameter of the current collection section is reduced or the diameter of the terminal section is expanded so that the outer diameter of the current collection section is equal to or smaller than the inner diameter of the terminal section, and then the current collection section is inserted into the terminal section. After that, the outer peripheral surface of the current collection section and the inner peripheral surface of the terminal section are made to be in close contact with each other by the restoring force of the current collection section having the reduced diameter or of the terminal section having the expanded diameter, and as a result, the current collection section is fixed to the terminal section.11-08-2012
20120279055NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery has a working electrode 1 having a positive electrode active material, a counter electrode 2, and a non-aqueous electrolyte containing lithium. The positive electrode active material includes a lithium pre-doped transition metal oxide prepared by pre-doping lithium into a sodium-containing transition metal oxide having an initial charge-discharge efficiency of higher than 100% as determined by charging and discharging using a lithium metal negative electrode as a counter electrode, and the sodium-containing transition metal oxide is represented by the compositional formula Na11-08-2012
20120279054Method of Configuring Cathodes of an Aluminum Reduction Cell - The present invention discloses a method of configuring energy saving high and low cathodes of an aluminum reduction cell, said method comprising disposing cathode carbon blocks and cathode steel rods at the bottom of the aluminum reduction cell, the cathode carbon blocks being formed by staggering high cathode blocks and low cathode blocks with different thicknesses. Both sides of the portion of each of the high cathode blocks higher than each of the low cathode blocks must be machined into bevels or arc angles, so as to achieve a good choking effect. The present invention can better improve the stability of molten aluminum-electrolyte interface within the aluminum reduction cell, decrease the polar distance effectively during normal production, and achieve a lower operating voltage of the reduction cell, thereby saving energy and reducing energy consumption.11-08-2012
20130000109ASSEMBLED BATTERY MANUFACTURING METHOD01-03-2013
20130000110METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING STACKED BATTERY, AND METHOD FOR MANUFACTURING COMPOSITE BODY - The whole of a conductive material layer is formed on a bonding surface of an outer film having flexibility and barrier properties to prepare a composite body in which the conductive material layer is integrated with the outer film. A current collector is located within an application region, and at least a part of an electrode terminal is located outside the application region. A positive electrode active material precursor layer, an electrolyte precursor layer, and a negative electrode active material precursor layer are added to the composite body with plane positions thereof aligned with that of the current collector. These precursor layers are subjected to a crosslinking process. The application regions are applied, and the outer films are bonded, to seal a cell. The crosslinking process may be omitted.01-03-2013
20120137508Method of forming a solid state cathode for high energy density secondary batteries - A method for making a solid state cathode comprises the following steps: forming an alkali free first solution comprising at least one transition metal and at least two ligands; spraying this solution onto a substrate that is heated to about 100 to 400° C. to form a first solid film containing the transition metal(s) on the substrate; forming a second solution comprising at least one alkali metal, at least one transition metal, and at least two ligands; spraying the second solution onto the first solid film on the substrate that is heated to about 100 to 400° C. to form a second solid film containing the alkali metal and at least one transition metal; and, heating to about 300 to 1000° C. in a selected atmosphere to react the first and second films to form a homogeneous cathode film. The cathode may be incorporated into a lithium or sodium ion battery.06-07-2012
20120240391Methods and Apparatuses for Making Cathodes for High-temperature, Rechargeable Batteries - The approaches and apparatuses for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.09-27-2012
20130167362PREPARATION METHOD OF LITHIUM RECHARGEABLE BATTERY COMPOSITE ANODE FROM SILICON KERF - The disclosure generally describes a method to prepare a composite anode for a lithium rechargeable battery comprising silicon particles from silicon kerf. Said silicon particles are mechanically resized, separated, cleaned, mixed with carbonaceous materials and polymer binder, and formed into an anode for a lithium rechargeable battery. The lithium rechargeable battery featuring such an anode exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.07-04-2013
20110232081REACTIVE POLYMER-SUPPORTING POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.09-29-2011
20080222881Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery - A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li09-18-2008
20130133184Apparatus and Method for the Production of Electric Energy Storage Devices - Production apparatus and method for producing devices for storing electric energy are disclosed, wherein stacks of flat cathodes r and anodes that face one another alternately with the interposition of a separator are produced, and in which the separator is formed by a single continuous strip folded several times in a single folding direction.05-30-2013
20130097853WORKPIECE-POSITIONING DEVICE AND WORKPIECE MANUFACTURING METHOD - A workpiece-positioning device includes a workpiece holder of holding a workpiece, a workpiece holder up/down mechanism of moving the workpiece holder up and down, and a free pallet movement mechanism of freely moving a pallet parallel to a reference plane to shift the pallet to a position where the workpiece held by the workpiece holder is lowered so that a positioning pin of the pallet is inserted into a positioning hole made in the workpiece.04-25-2013
20130125388EQUIPPING MOTOR VEHICLE BATTERY HOUSINGS WITH SETS OF ELECTRODE PLATES - The invention relates to an equipping station (05-23-2013
20130125387CANAL HEARING DEVICES AND BATTERIES FOR USE WITH SAME - Hearing devices configured to fit within the bony portion of the ear canal and batteries that may be used with same.05-23-2013
20130139379METHOD OF BATTERY PRODUCTION - A battery production method according to the invention includes a winding step of winding an electrode assembly around a winding core and a flattening step of pressing the electrode assembly wound in the winding step, in a direction orthogonal to an axial direction thereof to form a flattened shape in which the wound electrode assembly is flattened in a direction that is orthogonal to the pressing direction and the axial direction, wherein a rod-shaped spacer is inserted, in parallel to the axial direction, into the electrode assembly wound during the course of winding the electrode assembly around the winding core in the winding step, and wherein the spacer is pulled out between the winding step and the flattening step.06-06-2013
20130145613Single Punch Method of Making Battery Plates for Lead-Acid Batteries - A method of making battery plates for lead-acid batteries includes providing a strip of material comprising lead; and punching material out of the strip to form a grid comprising wires having a non-rectangular cross-sectional shape by utilizing a die set comprising a plurality of male die components and female die components, wherein each of the male die components comprises a first portion having a first cross-sectional shape and a second portion having a second-cross sectional shape. A single punch of the material creates a hole in the material and also forms the periphery of the hole.06-13-2013
20100287763BATTERY PRODUCTION METHOD - A method for producing a battery comprises a deformation step for moving a first metal foil (11-18-2010
20100306995PRESS APPARATUS - A press apparatus for assembly of a battery pack includes a tooling table having an aperture formed therein. The tooling table includes a plurality of index pawls disposed adjacent the aperture. The index pawls militate against the components passing upwardly through the aperture after the components have passed downwardly through the aperture. A first press is disposed on a first side of the tooling table and configured to advance the components downwardly through the aperture and past the index pawls on the tooling table. A second press is disposed on a second side of the tooling table. The second press is configured to retract a distance that the components are pressed downwardly through the aperture and maintain a substantially constant upward force on the components. A third press is disposed on the first side of the tooling table and configured to compress the battery pack to a desired size and load.12-09-2010
20120017429Process for the Preparation of an Electrode from a Porous Material, Electrode Thus Obtained and Corresponding Electrochemical System - Process for the preparation of electrodes from a porous material making it possible to obtain electrodes that are useful in electrochemical systems and that have at least one of the following properties: a high capacity in mAh/gram, a high capacity in mAh/liter, a good capacity for cycling, a low rate of self discharge, and a good environmental tolerance.01-26-2012
20130192058BATTERY AND RELATED METHOD - A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.08-01-2013
20130097854METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE MATERIAL AND METHOD FOR PRODUCING LITHIUM SOLID STATE BATTERY - A method for producing a sulfide solid electrolyte material having a small amount of hydrogen sulfide generation and a high Li ion conductivity. To achieve the above, a method for producing a sulfide solid electrolyte material is provided, including steps of: a providing step for providing a crystallized sulfide solid electrolyte material prepared by using a raw material composition containing Li04-25-2013

Patent applications in class Electric battery cell making

Patent applications in all subclasses Electric battery cell making