| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flat nonaqueous secondary battery superior in productivity. <P>SOLUTION: In the flat nonaqueous secondary battery provided with an electrode group in which a plurality of positive electrodes and a plurality of negative electrodes are laminated with separators interposed and a nonaqueous electrolyte solution arranged in a space formed by caulking-sealing with an outer case also serving as a positive electrode terminal and a negative electrode case also serving as a negative electrode terminal via an insulation gasket, the positive electrode has a main body and a current collector tab projecting from the main body, and the current collector tabs of all of the positive electrodes are collected together and are folded on an outer surface of the electrode group on the outer case side to be connected electrically to the positive electrode case, and the insulation gasket has a projected part toward a battery inside on its inner wall on the outer case side. <P>COPYRIGHT: (C)2011,JPO&INPIT |
