Method of producing hydrogen absorbing alloy powder, and electro

Details Method of producing hydrogen absorbing alloy powder, and electro Method of producing hydrogen absorbing alloy powder, and electro

1997-10-08

2000-08-01

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Treating loose metal powder, particle or flake

420900, 4292182, H01M 408

Patent

active

060961449

ABSTRACT:
A method of producing a hydrogen absorbing alloy powder, which comprises a step of treating a pulverized hydrogen absorbing alloy with an acidic or alkaline solution of conjugated unsaturated compound having at least 5 conjugated .pi. bonds; and a negative electrode using a hydrogen absorbing alloy powder produced by the aforesaid method, which can ensure high initial activity and high initial capacity in the nickel-hydrogen secondary battery provided therewith.

REFERENCES:
patent: 4555395 (1985-11-01), Sirovich et al.
patent: 5695530 (1997-12-01), Hong et al.
patent: 5858571 (1999-01-01), Ishii et al.

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