Tokyo Shibaura Electric Co., Ltd.

Yoshimi Kanada

Tamotsu Shirogami

Tsutomu Takamura

The positive electrode of a nickel-zinc cell comprises a positive electrode composition containing less than 90 parts by weight manganese dioxide in 100 parts of nickel oxide which is mixed with an electroconducting material and binding material. The positive electrode composition, preferably is tightly covered with an electron conducting sheet containing many apertures. The nickel-zinc cells modified by these procedures have an improved capacity which is available during heavy current discharge loads, particularly under intermittent discharge, and the capacity loss of the cells during storage is reduced.

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Tokorozawa, Japan

Yoshimi Kanada