Patent ID: 6780207
Filing Date: 2004-08-24
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A method for manufacturing a lithium polymer secondary battery in which the battery has a plurality of cells, each of the plurality of cells having an anode plate and a cathode plate and an isolation film, the isolation film insulating the anode plate and the cathode plate from each other, the method comprising:preparing a plurality of anode plates each having a desired size; preparing a plurality of cathode plates each having a desired size; preparing an isolation film having a desired size for the cells: wrapping one of said plurality of anode plates by said isolation film such that said isolation film is placed over opposite surfaces of the anode plate under tension; overlapping the anode plate with one of said cathode plates such that said isolation film is interposed between a surface of the cathode plate and one of the opposite surfaces of the anode plate; wrapping said isolation film under tension over an opposite surface of the of the plurality of cells; and stacking the remaining anode plates of said plurality of anode plates and the remaining cathode plates of said plurality of cathodes plates alternately on opposite sides of the formed cell while rotating the formed cell; and wrapping said isolation film under tension over and around the remaining anode plates and the remaining cathode plates during the step of stacking such that said isolation film is interposed between adjacent pairs of cathode plates and anode plates.