Process for producing a wind-type alkaline secondary battery

Details Process for producing a wind-type alkaline secondary battery Process for producing a wind-type alkaline secondary battery

1995-07-28

1996-09-24

Maples, John S.

Metal working

Method of mechanical manufacture

Electrical device making

429 94, 429254, H01M 1028

Patent

active

055586821

ABSTRACT:
An alkaline secondary battery comprising a negative comprising cadmium, zinc or iron or an oxide or thereof or a hydrogen absorbing alloy, a positive electrode comprising a metal oxide or a metal hydroxide, and a separator, which are all impregnated with an electrolyte comprising an alkaline aqueous solution is disclosed, wherein the separator is made of a polyolefin fiber sheet which has a wicking rate of pure water of at least 10 mm per 2 minutes when one end of the sheet is dipped in pure water at 20.degree. C. and 60% RH. Since the separator is chemically stable and exhibits sufficient hydrophilic properties, the battery retains a high electrode utilization even at a high rate discharging and has a practically sufficient cycle life.

REFERENCES:
Patent Abstracts of Japan, vol. 13, No. 288 (E-781) Mar. 1989.
Patent Abstracts of Japan, vol. 16, No. 469 (E-1271 Jun. 1992.
Patent Abstracts of Japan, vol. 7, No. 247 (E-208) Aug. 1983.
Patent Abstracts of Japan, vol. 13, No. 270 (E-776) Mar. 1989.
Database WPI, Derwent Publications Ltd., AN 80-594119 Jul. 1980.
Database WPI, Derwent Publications Ltd., AN 81-52428 May 1981.
Proceedings of the 27th Power Sources Conference, pp. 83-85 (1976) (no month).
Kobunshi Ronbunshu, vol. 48, No. 1, pp. 1-9 (Jan., 1991).

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