Secondary battery and secondary battery manufacturing method

Abstract

The purpose of the present invention is to provide a secondary battery having a high energy density and excellent cycle characteristics, in which the secondary battery has a configuration making it possible to be assembled in a short time. The secondary battery of the present invention includes a laminate formed by winding a sheet having a negative electrode and separators disposed on both surfaces of the negative electrode so that the sheet is folded back a plurality of times; and a plurality of positive electrodes that are respectively disposed in each gap formed between the separators facing each other in the laminate.

Dependencies are inferred from the claim text.