Hitachi Maxell, Limited

Hiroshi Ishiuchi

Yoshio Uetani

Kozo Kajita

Kazuo Ishida

Akio Shimizu

Mitsutoshi Watanabe

Tadashi Goryo

There is provided an alkaline cell without mercury comprising zinc as a negative electrode active material and an electrolytic solution characterized in that a bismuth compound is added to the electrolytic solution.

Alkaline cell

A silver(II) oxide cell which comprises a positive electrode comprising a shaped body of silver(II) oxide as a positive active material, a negative electrode comprising zinc as a negative active material and an alkaline electrolyte, characterized in that the shaped body is a molding product of a composition comprising particles of which each particle comprises a core part of silver(II) oxide and a surface part of silver(I) oxide integrally and continuously provided around the core part, the weight ratio of the silver(II) oxide and the silver(I) oxide being from about 70 : 30 to 90 : 10. Such silver(II) oxide cell has large discharge capacity and shows a flat and even discharge characteristics without any substantial deterioration in performances on storage.

Silver(II) oxide cell and its manufacture

Growing community of inventors

Settsu, Japan

Hiroshi Ishiuchi