POWER STORAGE DEVICE

Abstract: a power storage device includes: an electrode body formed by winding a positive electrode, a negative electrode, and a separator; a cap disposed close to one end of the electrode body in a winding axis direction of the electrode body; and a plurality of positive electrode tabs connecting the positive electrode to the cap, the plurality of positive electrode tabs at least partially overlapping each other forming an overlapped part that is joined to the cap.

Inventor(s): SHINICHI SAKAMOTO, KIYOMI KOZUKI, SHINYA GESHI

CPC Classification: H01M50/538 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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