Coated absorbent barrier protecting separator and battery embody

Details Coated absorbent barrier protecting separator and battery embody Coated absorbent barrier protecting separator and battery embody

1977-02-11

1978-06-20

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429254, 427245, H01M 216, B32B 528

Patent

active

040963179

ABSTRACT:
A sealed primary galvanic cell has a barrier and barrier protecting separator. The barrier protecting separator contains the reaction product of an alkaline earth metal salt and unneutralized carboxypolymethylene. The barrier protecting separator is prepared by applying either of the treating materials in the wet state to a supporting sheet, drying and then applying the second treating material also in the wet state.

REFERENCES:
patent: 3345215 (1967-10-01), Ryhiner et al.
patent: 3880672 (1975-04-01), Megahed et al.

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