Hydrogen-absorbing alloy electrode for metal hydride alkaline ba

Details Hydrogen-absorbing alloy electrode for metal hydride alkaline ba Hydrogen-absorbing alloy electrode for metal hydride alkaline ba

1995-07-20

1997-04-01

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429 59, 429101, 429223, 429224, 420455, 420900, H01M 402

Patent

active

056164351

ABSTRACT:
A hydrogen-absorbing alloy electrode for metal hydride alkaline batteries is obtained by coating or filling a collector with a hydrogen-absorbing alloy powder consisting essentially of spherical particles and/or nearly spherical particles and then sintering the powder, the powder having an average particle diameter of 30 to 70 .mu.m and containing 5 to 30% by volume of particles having a diameter of at least 2 times the average diameter and 10 to 40% by volume of particles having a diameter of not more than 1/2 of the average diameter. This electrode can give metal hydride alkaline batteries having excellent high-rate discharge characteristics and a long life.

REFERENCES:
patent: 4893756 (1990-01-01), Fetcenko et al.
patent: 5219678 (1993-06-01), Hasebe et al.
Patent Abstracts of Japan, vol. 14, No. 537, JP-A-02 227 958 *abstract* Sep. 1990.
Patent Abstracts of Japan, vol. 14, No. 154, JP-A-02 012 766 *abstract* Jan. 1990.
Patent Abstracts of Japan, vol. 12, No. 438, JP-A-63 162 884 *abstract* Jul. 1988.

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