Patent application number | Description | Published |
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 |
20110008654 | CAP ASSEMBLY OF IMPROVED SAFETY AND CYLINDRICAL SECONDARY BATTERY EMPLOYED WITH THE SAME - Disclosed herein is a cap assembly loaded on an open upper end of a cylindrical container of a battery in which an electrode assembly is mounted in the cylindrical container, the cap assembly including a safety vent having a predetermined notch configured to rupture by high-pressure gas generated in the battery, a current interruptive device coupled to a bottom of the safety vent by welding for interrupting current when internal pressure of the battery increases, and a current interruptive device gasket for surrounding an outer circumference of the current interruptive device, wherein the current interruptive device includes two or more through holes for gas discharge, the through holes being formed such that the sum of areas of the through holes is equal to 20% to 50% of an entire area of the current interruptive device. When high-pressure gas is generated in the battery, the cap assembly effectively interrupts current and rapidly discharges the gas, thereby greatly improving safety of the battery. | 01-13-2011 |
20110076546 | MIDDLE AND LARGE-SIZED BATTERY MODULE HAVING ELECTRODE TERMINAL CONNECTING MEMBER AND INSULATING JOINT MEMBER - Disclosed herein is a middle- or large-sized battery module having a structure in which two or more plate-shaped secondary battery cells (‘battery cells’) are arranged in a lateral direction thereof, wherein the battery cells have electrode terminals arranged in the same direction, plate-shaped electrode terminal connecting members to electrically connect the battery cells to one another are electrically connected to oriented surfaces of the electrode terminals of the battery cells, each of the electrode terminal connecting members is provided at a top and/or bottom thereof with a coupling structure to interconnect electrode terminal connecting members, and at least one end of an insulating joint member coupled in the coupling structure is supported by a module case. | 03-31-2011 |
20110262777 | CONNECTING MEMBER OF ELECTRODE TERMINALS FOR PREPARATION OF CORE PACK - Disclosed herein is an electrode terminal connecting member to connect two or more battery cells in series and/or in parallel to each other so as to manufacture a battery cell core pack, wherein the electrode terminal connecting member includes a plate body having a size sufficient to connect electrode terminals of the battery cells arranged in at least 2×2 matrix to each other, and the electrode terminals of the battery cells are directly coupled to the plate body in a state in which the plate body is not bent. | 10-27-2011 |
20120028084 | SPACER FOR BATTERY PACK AND BATTERY PACK COMPRISING THE SAME - Disclosed herein is a spacer used in a battery pack having a plurality of battery cells mounted in a pack case, wherein the spacer is configured to have a top shape corresponding to the inner shape of the pack case in vertical section and a bottom shape corresponding to the outer circumferential shape of the battery cells in vertical section so that the spacer can be mounted in a space defined between the battery cells and the pack case, grooves, in which electrical connection members are mounted, are formed at the top of the spacer, and the spacer includes at least one temperature detection member mounting part including a horizontal opening open in one direction or in opposite directions and a vertical opening communicating with the horizontal opening so that a temperature detection member is inserted from one side of the spacer and mounted in a space defined between the battery cells. In the spacer, the temperature detection member is inserted into the horizontal opening from one side of the spacer so that the temperature detection member can be fixed between the battery cells and the spacer, and therefore, a process of bonding the temperature detection member is omitted. Also, the electrical connection members for electrical connection between the battery cells and between the battery cells and a protection circuit member are mounted in the grooves so that the electrical connection members are fixed in an insulated state, thereby preventing the occurrence of a short circuit due to vibration or impact and simplifying an assembly process. | 02-02-2012 |
20130004799 | BATTERY CELL ASSEMBLY OF NOVEL STRUCTURE AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery cell assembly including a battery cell array including two or more battery cells, each of which has an electrode assembly of a cathode/separator/anode structure disposed in a battery case together with an electrolyte in a sealed state, arranged in the lateral direction, and a protection circuit module (PCM) connected to the upper end of the battery cell array to control the operation of the battery pack, wherein the outer sides of the battery cells or the outer side of the battery cell array is coated with a resin by insert injection molding excluding electrode terminals of the battery cells. | 01-03-2013 |
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 |
20150064540 | BATTERY MODULE HAVING STRUCTURE OF IMPROVED STABILITY AND HIGH COOLING EFFICIENCY - Disclosed herein is a battery module including a battery cell stack configured to have a rectangular parallelepiped structure in which two or more plate-shaped battery cells, each of which has electrode terminals formed at one side thereof, are stacked and a breadth of one surface of the battery cell stack at which the electrode terminals of the battery cells are disposed is smaller than a width and a height of each major surface of the battery cell stack, a first module case bent to surround two relatively large major surfaces of the battery cell stack and one surface of the battery cell stack opposite to the surface of the battery cell stack at which the electrode terminals of the battery cells are disposed, among six surfaces of the battery cell stack and a surface, the first module case being made of a thermally conductive material that is capable of dissipating heat generated from the battery cells during charge and discharge of the battery cells, and a second module case bent to surround side surfaces of the battery cell stack adjacent to the two major surfaces of the battery cell stack and the surface of the battery cell stack at which the electrode terminals of the battery cells are disposed, the second module case being fastened to the first module case, the second module case being provided with through holes, through which the electrode terminals of the battery cells protrude outward, the second module case being made of an electrically insulative material. | 03-05-2015 |
20150072205 | BATTERY ASSEMBLY HAVING SINGLE ELECTRODE TERMINAL CONNECTION PART - Disclosed herein is a battery assembly including at least two battery cells connected in series or in parallel. Each of the battery cells includes an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode and a battery case in which the electrode assembly is mounted. An electrode terminal of a first battery cell and an electrode terminal of a second battery cell are formed as a single member at a series or parallel connection portion between the first and second battery cells. | 03-12-2015 |