| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flat nonaqueous secondary battery high in reliability and superior in productivity. <P>SOLUTION: In a space formed by caulking and sealing-up a positive electrode case also to serve as a positive electrode terminal and a negative electrode case also to serve as a negative electrode terminal via an insulating gasket, the flat nonaqueous secondary battery has an electrode group in which a plurality of positive electrodes and a plurality of negative electrodes are laminated via a separator, and has a nonaqueous electrolytic solution. The positive electrode has the body part and a current collecting tab part protruded from the body part. The current collecting tab parts of all the positive electrodes are collected, folded back on the outer face of an outer case side of the electrode group, and electrically connected to the positive electrode case. A position of a protruded part of the separator arranged on both faces of the respective current collecting tab parts of the positive electrode is made appropriate. <P>COPYRIGHT: (C)2011,JPO&INPIT |
