Patent ID: 9406978
Filing Date: 2016-08-02
CPC Classification: C23F,H01G,H01M,Y02E,Y02P,Y10T

Claim Text:
1. A method for manufacturing a power storage device comprising steps of: forming a plate-like positive-electrode active material on a positive-electrode current collector; forming a plurality of first insulators on the plate-like positive-electrode active material; etching the plate-like positive-electrode active material using the plurality of first insulators as masks, thereby forming a positive electrode having a positive-electrode active material with a plurality of first projections, wherein each of the plurality of first insulators is provided on an end of each of the plurality of first projections; forming a plate-like negative-electrode active material on a negative-electrode current collector; forming a plurality of second insulators on the plate-like negative-electrode active material; etching the plate-like negative-electrode active material using the plurality of second insulators as masks, thereby forming a negative electrode having a negative-electrode active material with a plurality of second projections, wherein each of the plurality of second insulators is provided on an end of each of the plurality of second projections; providing a separator between the positive electrode and the negative electrode; and providing an electrolyte in a space between the positive electrode and the negative electrode, the electrolyte containing carrier ions.