Battery separators

Details Battery separators Battery separators

1984-04-06

1984-12-25

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429146, 429254, H01M 216

Patent

active

044904479

ABSTRACT:
Novel, improved battery separators carrying a plurality of polymeric ribs on at least one separator surface. The battery separators are produced by extruding a plurality of ribs in the form of molten polymeric rib providing material onto the surface of a battery separator to bond the material to the separator surface and cooling the extruded rib material to a solidified state. The molten polymeric rib providing material of this invention includes a mixture or blend of polypropylenes and an ethylene propylene diene terpolymer.

REFERENCES:
patent: 2465493 (1949-03-01), Strickhouser et al.
patent: 3351495 (1967-11-01), Larsen et al.
patent: 4000352 (1976-12-01), Hollenbeck
patent: 4403024 (1983-09-01), Gordon et al.

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