| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery capable of realizing capacity increase by preventing an electrical short circuit and by using parallel connection structure. Ž<P>SOLUTION: Rectangular stacking elements A-D are stacked in two regions out of regions R1-R4. As a result, a positive current collector 1a and a negative current collector 2a are connected like a spiral staircase. A plurality of unit cell parts are arranged in parallel between connected bodies of the positive current collector 1a and the negative current collector 2a. The unit cell part is composed of a positive active material layer 1b, a solid electrolyte layer 3, and a negative active material layer 2b. By drawing out each one lead member of the lowermost part and uppermost part, connection to an outside terminal can be conducted. Thereby, electrical short circuit caused by drawing out of many current collectors can be prevented. By arranging many unit cell parts in parallel between the pair of positive and negative current collectors, battery capacity is enhanced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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