| 摘要 |
PROBLEM TO BE SOLVED: To provide a wound battery wherein the ends of the separators and metal foils are smoothly bent, and welding of the metal foils and current collectors is not required because the bent ends are sandwiched with a pair of plate members. SOLUTION: The wound battery 1 is provided with a notch 62 made by cutting out a part of an exposed part 60b in an arcuate layers 61. In a power generating element 51, the notch is formed of a first plane 63 which passes through the center 61a of the arcuate layers 61 and in a flat direction, and extends until a predetermined position in a direction of axis 51a of the element 51; and a second plane 64 which continues from the first plane 63 in a cross-sectional direction of the arcuate layers 61. COPYRIGHT: (C)2004,JPO&NCIPI
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