Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent
1970-08-03
1976-09-14
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
429131, 429133, H01M 214
Patent
active
039804976
ABSTRACT:
A multi-layer separator for use in alkaline storage batteries is disclosed. In one aspect of the invention the separator comprises bibulous, non-membranous layers together with a coating of a relatively thin layer of a gelling agent applied to at least one side of one of the bibulous layers. In another aspect of the invention, outer bibulous, non-membranous layers sandwich and are bonded to a semi-permeable membranous layer with an adherent gelling agent to form a high-strength laminated separator.
These separators find use in a variety of alkaline galvanic cells, particularly in rechargeable cells such as nickel-cadmium, nickel-zinc, silver-zinc, manganese dioxide-zinc, and similar cells.
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Ott et al., Cellulose and Cellulose Derivatives, Second Edition, by Interscience Publishers, Inc. N.Y., (1954), pp. 202-207.
Gillman Leland M.
Stark Robert E.
Castleman, Jr. Curtis H.
Fink Raymond
Oberg, Jr. H. W.
The Gates Rubber Company
Walton Donald L.
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