Fuji Electrochemical Co., Ltd.

Fdk Corporation

Akihide Izumi

Kenichi Shinoda

Takashi Matsuo

Hidenori Tsuzuki

Mitsuo Murakoshi

Katsuhiro Yamashita

Kiyohide Tsutsui

Kazuo Matsui

Takaaki Yasumura

Shinji Nittono

Yoshiteru Nakagawa

Kuniyoshi Nishida

Chihiro Murata

Zinc anode can of a battery, method of manufacture thereof, and

A gel form negative electrode of an alkaline battery is produced without mercury and enables uniform dispersion of zinc or zinc alloy powder and an effective metal which can be one or more of an oxide or hydroxide of indium, lead, gallium, bismuth. The zinc or zinc alloy powder and the effective metal are drymixed in advance of mixing with a gel form alkaline electrolyte. In order to obtain satisfactorily high vibration strength and impact resistance, fiber material can be added to the gel form negative electrode. The fiber material may be selected among rayon, vinylon, acryl, vinyon, polyamide, polypropylene, polyethylene, mercerized pulp, linter pulp.

Alkaline battery

A method for producing a gel form negative electrode of an alkaline battery while avoiding use of mercury enables uniform dispersion of zinc or zinc alloy powder and an effective metal which can be one or more of an oxide or hydroxide of indium, lead, gallium, bismuth, by stirring for a substantially reduced period. The method employs dry mixing of the zinc or zinc alloy powder and the effective metal in advance of mixing with a gel form alkaline electrolyte. Also, in order to obtain satisfactorily high vibration strength and impact resistance, fiber material can be added to the gel form negative electrode. The fiber material may be selected among rayon, vinylon, acryl, vinyon, polyamide, polypropylene, polyethylene, mercerized pulp, linter pulp.

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Kosai, Japan

Akihide Izumi