Process for producing non-sintered nickel electrode for alkaline

Details Process for producing non-sintered nickel electrode for alkaline Process for producing non-sintered nickel electrode for alkaline

1997-05-12

1998-10-27

Skapars, Anthony

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

205509, 296235, C01G 5300, H01M 426

Patent

active

058274944

ABSTRACT:
An non-sintered nickel electrode of alkaline batteries uses an active material powder which comprises composite particles comprising nickel hydroxide particles or solid solution particles consisting essentially of nickel hydroxide the surface of which is covered with a mixed crystal of cobalt hydroxide and the hydroxide of at least one metal (M) selected from the group consisting of aluminum, magnesium, indium and zinc. With this electrode, the cobalt hydroxide, which covers as a component of the mixed crystal the surface of the nickel hydroxide particles, minimally diffuses into them. Alkaline batteries using this electrode as positive electrode can therefore maintain, for a long period of time of charge-discharge cycles, the function of the cobalt hydroxide of increasing the conductivity of the electrode, thereby suppressing decrease in the discharge capacity in the course of charge-discharge cycles.

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