Patent application number | Description | Published |
20100035145 | PACKING STRUCTURE FOR LITHIUM ION POLYMER BATTERY - Disclosed is a packing structure for a lithium ion polymer battery, which includes: a battery casing including a lower multilayer polymer and an upper multilayer polymer, wherein the lower multilayer polymer has an inner space of a predetermined size for housing at least one electrode assembly and an electrolyte and is provided with an extension portion extending radially and outwardly from a top edge of each vertical portion of the lower multilayer polymer, a part of the upper multilayer polymer is coupled rotatably to a part of the extension portion of the lower multilayer polymer and remaining parts of the upper multilayer polymer are sealed to remaining parts of the extension portion of the lower multilayer polymer; and a battery protection member, which wraps the outer circumference of the battery casing so that the battery contained in the battery casing can be protected from external impact, and is fixed integrally by a part of the sealed extension portions. The packing structure can protect a battery from external impact while minimizing an increase in size of the whole battery. | 02-11-2010 |
20100047685 | POUCH-TYPED SECONDARY BATTERY WITH IMPROVED SAFETY AND EXCELLENT MANUFACTURING PROCESS PROPERTY - Disclosed herein is a secondary battery including an electrode assembly, having pluralities of electrode tabs joined to electrode leads, mounted in a receiving part of a battery case, wherein the battery case has concave steps formed at the inner upper end of the receiving part thereof between electrode tab-electrode lead coupling portions (a cathode terminal portion and an anode terminal portion) of the electrode assembly and at the inner opposite sides of the receiving part thereof corresponding to the opposite sides of the electrode assembly such that the electrode assembly is in tight contact with the concave steps. | 02-25-2010 |
20100047687 | SECONDARY BATTERY WITH TOP SEALED PORTION OF IMPROVED STRUCTURE - Disclosed herein is a secondary battery manufactured by mounting an electrode assembly having a cathode/separator/anode structure into a pouch-shaped battery case and thermally welding the electrode assembly to the battery case, wherein a pair of insulative films are attached to opposite major surfaces of each electrode lead, to which electrode taps of the electrode assembly are electrically connected, at regions contacting an upper thermally-welded portion (upper sealed portion) of the pouch-shaped battery case, one of the insulative films (a, b), i.e., the insulative film (a), extends such that the lower end of the insulative film (a) supports a coupled region where the electrode taps are coupled to the electrode lead, and the overlapping length (L) between the insulative films (a, b) is equal to or slightly greater than the height (H) of the upper sealed portion. The secondary battery according to the present invention has the effect of preventing the breakage of the electrode leads due to the movement of the electrode assembly when external forces, such as small vibrations and dropping, are applied to the secondary battery, and, preferably, easily bending the electrode leads such that the PCM is mounted to the secondary battery. | 02-25-2010 |
20100075210 | Hybrid-Typed Electrode Assembly of Capacitor-Battery Structure - Disclosed herein are a hybrid type electrode assembly including a plurality of electrode groups that can be charged and discharged, wherein the respective electrode groups are constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, and at least one of the electrode groups is a capacitor type electrode group, and a secondary battery including the same. In the hybrid type electrode assembly according to the present invention, a coupled system of a capacitor and a secondary battery is embodied in a single cell through a simplified manufacturing process. Consequently, the present invention has the effect of reducing the manufacturing costs of the battery cell and improving the pulse charge and discharge characteristics without the degeneration of capacity. | 03-25-2010 |
20100285341 | PREPARATION PROCESS FOR PREVENTING DEFORMATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28. | 11-11-2010 |
20100310944 | ELECTROLYTE OF HIGH TEMPERATURE PROPERTY AND OVERCHARGE-PREVENTION PROPERTY AND SECONDARY BATTERY EMPLOYED WITH THE SAME - Provided is a secondary battery electrolyte having improved high temperature properties and overcharge-prevention properties, particularly improved overcharge-prevention properties under high voltage/high current conditions, in conjunction with a minimized deterioration of the battery performance, by adding 3 to 5% 100 by weight of cyclohexyl benzene (CHB) and 0.2 to 1.5% by weight of 2-fluoro biphenyl (2-FBP) as overcharge-preventing additives to an electrolyte of a lithium secondary battery. | 12-09-2010 |
20110097615 | BATTERY CELL OF CURVED SHAPE AND BATTERY PACK EMPLOYED WITH THE SAME - The present invention relates to a battery cell which is housed in a variable state cell case in which a pole assembly having an anode/separating film/cathode laminate configuration is impregnated with an electrolytic solution. The pole assembly and the cell case are curved together in the same direction at both their ends relative to their central parts in vertical cross section in the axial direction, and they provide a battery cell having a configuration whereby they are curved in a single plane. When such a battery cell is installed in a device having a curved appearance in a single plane or is installed in a location which is curved in a single plane on the inside of a device, there are advantages in that it is efficient, can minimise waste in the space required because of the intimately fined configuration, and it allows the development of devices which have an aesthetically pleasing appearance and which have a diversity of design tailored to consumer preferences. | 04-28-2011 |
20120219840 | LITHIUM SECONDARY BATTERY CONTAINING CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND ORGANIC/INORGANIC COMPOSITE POROUS MEMBRANE - Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume between the inorganic particles. | 08-30-2012 |
20120225343 | CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries. | 09-06-2012 |
20130130098 | POUCH-TYPED SECONDARY BATTERY WITH IMPROVED SAFETY AND EXCELLENT MANUFACTURING PROCESS PROPERTY - Disclosed herein is a secondary battery including an electrode assembly, having pluralities of electrode tabs joined to electrode leads, mounted in a receiving part of a battery case, wherein the battery case has concave steps formed at the inner upper end of the receiving part thereof between electrode tab-electrode lead coupling portions (a cathode terminal portion and an anode terminal portion) of the electrode assembly and at the inner opposite sides of the receiving part thereof corresponding to the opposite sides of the electrode assembly such that the electrode assembly is in tight contact with the concave steps. | 05-23-2013 |
20130187082 | LITHIUM SECONDARY BATTERY CONTAINING CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND ORGANIC/INORGANIC COMPOSITE POROUS MEMBRANE - Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume between the inorganic particles. | 07-25-2013 |
20130260200 | PREPARATION PROCESS FOR PREVENTING DEFORMATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28. | 10-03-2013 |
20140090236 | BATTERY CELL OF CURVED SHAPE AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery cell configured such that an electrode assembly of a cathode/separator/anode stack structure is mounted in a changeable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein the electrode assembly and the cell case are curved in the same direction on axial vertical sections thereof in a state in which opposite ends of the electrode assembly and opposite ends of the cell case are directed in the same direction about a middle part of the electrode assembly and a middle part of the cell case. When the battery cell is mounted in an electronic device the external shape of which is curved or in an electronic device configured such that a battery mounting region thereof is curved, the tight contact between the battery cell and the electronic device is achieved, thereby maximizing space utilization and thus providing high efficiency. Also, electronic devices having aesthetically pleasing appearance and various designs satisfying liking of consumers are developed using the battery cell. | 04-03-2014 |
20140093762 | BATTERY CELL OF CURVED SHAPE AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery cell configured such that an electrode assembly of a cathode/separator/anode stack structure is mounted in a changeable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein the electrode assembly and the cell case are curved in the same direction on axial vertical sections thereof in a state in which opposite ends of the electrode assembly and opposite ends of the cell case are directed in the same direction about a middle part of the electrode assembly and a middle part of the cell case. When the battery cell is mounted in an electronic device the external shape of which is curved or in an electronic device configured such that a battery mounting region thereof is curved, the tight contact between the battery cell and the electronic device is achieved, thereby maximizing space utilization and thus providing high efficiency. Also, electronic devices having aesthetically pleasing appearance and various designs satisfying liking of consumers are developed using the battery cell. | 04-03-2014 |
20140106212 | CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries. | 04-17-2014 |
20140154565 | ELECTRODE ASSEMBLY, FABRICATING METHOD OF THE ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE ELECTRODE ASSEMBLY - A fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, and conducting a second process of laminating first separator/second electrode/second separator one by one on one of the first electrode among two of the first electrodes. | 06-05-2014 |
20140199581 | SECONDARY BATTERY INCLUDING INTEGRATED ANODE AND CATHODE LEADS AND METHOD OF MANUFACTURING THE SAME - Provided is a secondary battery including integrated anode and cathode leads and a method of manufacturing the same. An anode lead and a cathode lead of a secondary battery aligned to be parallel with respect to each other are encompassed by a single lead film. Thus, sealing may be easily implemented, lead film components may be managed as one component, and vibrations of an electrode lead may be prevented. | 07-17-2014 |
20140212729 | ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE SAME - An electrode assembly manufactured by a third method other than a stack folding method or a stack method, and an electrochemical device including thereof are disclosed. The electrode assembly includes at least one radical cell. The radical cell has a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one. | 07-31-2014 |
20140212751 | ELECTRODE ASSEMBLY, FABRICATING METHOD OF THE ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE ELECTRODE ASSEMBLY - A fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, conducting a second process of laminating a first separator on one of the first electrode among two of the first electrodes, and conducting a third process of laminating second separator/second electrode one by one on the other first electrode among the two of the first electrodes. | 07-31-2014 |
20140255778 | CATHODE INCLUDING INSULATION LAYER ON CATHODE TAB AND SECONDARY BATTERY INCLUDING THE CATHODE - Provided is a cathode including a cathode current collector, a cathode tab protruding from the cathode current collector, and an insulation layer coated with an insulating material on the cathode tab, and a secondary battery including the cathode. Since the cathode of the present invention includes an insulation layer on a cathode tab, the present invention may prevent an internal short circuit which may occur due to cell deformation or sharp edges of electrodes, which are formed during cutting of the electrodes in a preparation process of the battery, when the electrodes are stacked, or may prevent a physical short circuit between the cathode and the anode due to shrinkage of a separator in a high-temperature atmosphere. In a case where the cathode is used in a lithium secondary battery, safety and reliability in battery performance may be significantly improved. | 09-11-2014 |
20140272507 | ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL INCLUDING THE SAME - An electrode assembly according to the present disclosure includes an electrode stack part formed by stacking at least one radical unit having a four-layered structure of a first electrode, a separator, a second electrode and a separator, and an electrode fixing part for wrapping and fixing the electrode stack part. The electrode assembly according to the present disclosure may be fabricated by means of a stacking process other than a folding process, and may accomplish accurate alignment and stable fixing. | 09-18-2014 |
20140272548 | SECONDARY BATTERY STRUCTURE - The present invention relates to a secondary battery structure. The secondary battery structure includes: a can an electrode assembly accommodated in the can, the electrode assembly including a cathode tab and an anode tab; a cap plate sealing an opened upper end of the can; and an upper insulator disposed between the can and the cap plate, the upper insulator having a cathode tab hole for the cathode tab, an anode tab hole for the anode tab, and an injection/impregnation hole for injecting and impregnating, wherein each of the cathode tab hole, the anode tab hole, and the injection/impregnation hole extends in a length or width direction of the upper insulator and is symmetrical with respect to at least one of a line (a) that equally divides the upper insulator in a width direction and a line (b) that equally divides the upper insulator in a length direction. | 09-18-2014 |
20140342215 | ELECTRODE ASSEMBLY OF NOVEL STRUCTURE AND BATTERY CELL COMPRISING THE SAME - Disclosed herein is an electrode assembly configured to have a structure in which one bi-cell and at least one monocell are folded in a state in which the bi-cell and the monocell are arranged on a continuous separation film. | 11-20-2014 |
20140349192 | FABRICATING METHOD OF ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE SAME - A fabricating method of an electrode assembly according to the present invention includes forming a radical unit having a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one, and stacking at least one radical unit one by one to form a unit stack part. | 11-27-2014 |
20140373343 | METHOD OF MANUFACTURING ELECTRODE ASSEMBLY - A method of manufacturing an electrode assembly includes a first step of forming one kind of a radical unit or at least two kinds of radical units having an alternately stacked structure of a same number of electrodes and separators; and a second step of forming a cell stack part by repeatedly stacking one kind of the radical units, or by stacking at least two kinds of the radical units. Edge of the separator is not joined with that of adjacent separator. One kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked together or a repeating structure in which the four-layered structure is repeatedly stacked, and at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. | 12-25-2014 |
20140377631 | ELECTRODE ASSEMBLY AND RADICAL UNIT FOR THE SAME - According to the present disclosure, there is provided an electrode assembly comprising (a) a structure in which one kind of radical unit is repeatedly disposed, the one kind of radical unit having a same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, the at least two kinds of radical units each having a same number of electrodes and separators which are alternately disposed and integrally combined. | 12-25-2014 |
20140377641 | POUCH TYPE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A pouch type secondary battery and a method of manufacturing the same are disclosed. The pouch type secondary battery includes a pouch type case formed by attaching an upper sheet and a lower sheet, and an electrode assembly received in the pouch type case. A polymer coating layer for improving sealability is further included at an outer side portion of the pouch type case, in which the upper sheet and the lower sheet are attached. | 12-25-2014 |
20150013433 | AIR MICROMETER - The present invention relates to an air micrometer. The air micrometer includes a target object accommodation slot having a bottom surface and a ceiling surface to accommodate at least one portion of the target object between the bottom surface and the ceiling surface, and an air spray unit including a nozzle opened in the bottom surface or the ceiling surface to spray the air onto the target object that is accommodated between the bottom surface and the ceiling surface. | 01-15-2015 |
Patent application number | Description | Published |
20100009257 | Lithium Secondary Battery Comprising Electrode Active Material Containing Surfactant - Provided is a lithium secondary battery comprising a lithium transition metal compound-containing cathode and a graphitized carbon-containing anode with addition of a surfactant to the cathode and/or the anode, whereby the addition of the surfactant improves the wettability of an electrolyte on the electrode, thereby increasing the battery capacity and improving rate properties and cycle properties of the battery, in conjunction with a significant reduction of a manufacturing process time of the battery. | 01-14-2010 |
20100143787 | SECONDARY BATTERY HAVING IMPROVED SAFETY BY DEFORMATION OF ELECTRODE ASSEMBLY-RECEIVING PORTION IN CASE - Disclosed herein is a secondary battery constructed in a structure in which pluralities of electrode tabs, protruding from an electrode assembly, are connected to corresponding electrode leads, and the electrode assembly is mounted in a receiving part, wherein a battery case is multi-formed, such that the battery case presses the upper end of the electrode assembly by a predetermined width, thereby preventing the upward movement of the electrode assembly, mounted in the receiving part, at the upper end space region of the receiving part, where the electrode assembly is spaced apart from the upper end of the receiving part, for the connection between the electrode tabs and the corresponding electrode leads, during the repetitive charge and discharge of the battery. Consequently, it is possible to prevent the occurrence of a short circuit of the battery due to external impacts, such as the dropping of the battery, and to prevent the occurrence of an internal short circuit of the battery due to the expansion of the battery case caused by the repetitive charge and discharge of the battery, whereby the safety of the secondary battery is improved. | 06-10-2010 |
20100209768 | BATTERY PACK OF LARGE CAPACITY - Disclosed herein is a battery pack including a battery cell, having an electrode assembly mounted in a pouch-shaped battery case made of a laminate sheet including a metal layer and a resin layer and is sealed by thermal welding, mounted in a pack case, wherein the pack case includes a frame member constructed in a structure in which a receiving part for receiving the battery cell is open, opposite side sealing portions of the battery cell are mounted to the frame member such that the opposite side sealing portions cover the opposite sides of the frame member, and a sheathing film is applied to the outer surface of the frame member, to which the battery cell is mounted. | 08-19-2010 |
20100279161 | STACK AND FOLDING-TYPED ELECTRODE ASSEMBLY AND METHOD FOR PREPARATION OF THE SAME - Disclosed herein is a method of locating a plurality of pull cells constructed in a cathode/separator/anode structure, as basic units, on a separator sheet having a continuous length, further locating a unit electrode or a bi-cell on the separator sheet, and winding the pull cells and unit electrode or the bi-cell to continuously manufacture a stacking/folding type electrode assembly constructed in a structure in which anodes are located at the outermost electrodes forming the outside of the electrode assembly, respectively, wherein the method including a step of continuously supplying a cathode sheet, an anode sheet, a first separator sheet, and a second separator sheet, to manufacture the unit cells, successively arranging the unit cells on the second separator sheet from a first stage to an n stage, and winding the unit cells, a step of arranging cathode tabs and anode tabs at the respective stages, while the cathode tabs and the anode tabs are opposite to each other, and arranging electrode tabs having the same polarity between the neighboring stages, while the electrode tabs are opposite to each other, such that the electrode tabs having the same polarity are located all together at predetermined positions of the wound electrode assembly, and a step of supplying electrodes the number of which is odd from two electrode sheets and electrodes the number of which is even from one electrode sheet. | 11-04-2010 |
20120189883 | BATTERY CELL WITH SMALL GROOVE AT SURFACE AND BATTERY PACK INCLUDING THE SAME - Disclosed herein is a battery cell including an electrode assembly of a cathode/separator/anode structure mounted in a receiving part of a battery case (cell case). The cell case is provided, at a predetermined region of the cell case corresponding to the upper end interface of the electrode assembly while the electrode assembly is mounted in the receiving part, with a small groove for pressing against the upper end of the electrode assembly to prevent the upward movement of the electrode assembly. The small groove is continuously formed in parallel with the upper end of the electrode assembly. | 07-26-2012 |