Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent
1998-04-16
2000-03-14
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
429144, 429247, 429250, H01M 216, H01M 214
Patent
active
060370793
ABSTRACT:
An alkaline battery separator comprising a nonwoven fabric containing one or more mixture layers of entangled short fibers and entangled long fibers, wherein a fiber length of the short fibers is from 1 mm to less than 25 mm, a fiber length of the long fibers is 25 mm or more, and a total thickness of all of the mixture layers accounts for not less than one-third of a whole thickness of the nonwoven fabric is disclosed. The alkaline battery separator according to the present invention exhibits an excellent electrolyte-holding capacity, tensile strength, tear strength and bending resistance, and can be used to stably prepare a battery. Electrode flash rarely penetrate the separator, to thereby cause a short circuit between electrodes.
REFERENCES:
patent: 4330602 (1982-05-01), O'Rell et al.
patent: 5213722 (1993-05-01), Iwasaki et al.
patent: 5609976 (1997-03-01), Ueda et al.
patent: 5645956 (1997-07-01), Degen et al.
Abstract JPP 61-281454.
Abstract APP 9-223492.
European Search Report, Jul. 1999.
Patent Abstract Publication No. 08273650, Oct. 1996.
Tanaka Masanao
Tokutake Nobutoshi
Japan Vilene Company Ltd.
Martin Angela J.
Moran William R.
Nuzzolillo Maria
Wayne Milton J.
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