POWER STORAGE ELEMENT, ELECTRODE BODY, WINDING METHOD, AND WINDING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power storage element which includes an electrode body composed of a cathode and an anode plate and two sheets of separators which are alternately laminated, and which can prevent the cathode and the anode plates from getting shorted.SOLUTION: The power storage element includes an electrode body 120 composed of a cathode plate 122 and an anode plate 123 and a first separator 124 and a second separator 125, the first separator 124 and the second separator 125 being disposed between the cathode plate 122 and the anode plate 123, in which composition the cathode plate 122 and the anode plate 123 and the first separator 124 and the second separator 125 are laminated in a plurality of layers. The first separator 124 and the second separator 125 each have folds L1 in the vicinity of edges thereof.