Positive active material for alkaline electrolyte storage batter

Details Positive active material for alkaline electrolyte storage batter Positive active material for alkaline electrolyte storage batter

1998-03-05

2000-12-05

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4292181, 296231, H01M 452

Patent

active

061564540

ABSTRACT:
A method of manufacturing a positive active material for nickel electrodes of alkaline storage batteries which consists of particles of hydroxide containing mainly nickel and covered with a layer of a hydroxide phase based on nickel and yttrium is disclosed. The proportion of the hydroxide phase is in the range 0.15% to 3% by weight of yttrium expressed as yttrium hydroxide relative to the total weight of particles.

REFERENCES:
patent: 5466543 (1995-11-01), Ikoma
patent: 5506076 (1996-04-01), Miyamoto et al.
patent: 5549992 (1996-08-01), Iwane
patent: 5707764 (1998-01-01), Miyamoto
patent: 5804334 (1998-09-01), Yamamura
patent: 5905003 (1999-05-01), Young
Patent Abstracts of Japan, vol. 097, No. 004, Apr. 30, 1997 corresponding to JP 08 329937 A (Matsushita Electric Ind Co., Ltd) Dec. 13, 1996.
Patent Abstracts of Japan, vol. 096, No. 006, Jun. 28, 1996 corresponding to JP 08 045508 A (Sumitomo Metal Mining Co, Ltd) Feb. 16, 1996.

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