Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent
1993-12-03
1995-06-20
Maples, John S.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
429219, 429221, 429254, H01M 216
Patent
active
054260043
ABSTRACT:
A separator for use in a silver-iron battery is provided having a case and a cover within which are disposed a positive silver electrode and negative iron electrode. A separator is provided between these two electrodes. The separator includes alternating layers of a low density, radiation-grafted polyethylene layer provided adjacent the silver electrode and a cellophane film layer provided adjacent the polyethylene layer. Additional alternating layers of polyethylene and cellophane film can be provided as desired. The separator of the present invention blocks migration of the silver ion while maintaining low resistance to electrolytic transfer. The separator of the present invention provides for improved low temperature performance for silver-iron battery cells.
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Bayles Gary A.
Leap George D.
Maples John S.
Westinghouse Electric Corporation
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