MANUFACTURING METHOD OF ELECTROCHEMICAL ELEMENT

摘要

PROBLEM TO BE SOLVED: To efficiently manufacture an electrochemical element having a simple structure, high reliability and a high electric capacity.

SOLUTION: The method comprises steps of (a) providing conductive layers on both surfaces of a sheet-like insulating base material to obtain a first and a second collectors; (b) forming a plurality of first and second electrode mixture layers on the conductive layers of the first and the second collectors, respectively, by leaving an intervals in a belt shape lined in parallel to obtain a first and a second electrode groups; (c) winding the first and the second electrode groups in length directions of the first and the second electrode mixture layers via separators to obtain wound bodies; and (d) obtaining a plurality of wound type electrode plate groups by cutting the wound bodies at the intervals.

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