Laminated microporous article

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure

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428283, 428284, 428287, 428297, 428298, 428304, 428308, 429254, H01M 216

Patent

active

042018382

ABSTRACT:
A laminated microporous article consisting of at least two layers or plies, the first comprising either a thermoset or thermoplastic microporous material and the second comprising a polyester non-woven, heat bonded (in distinction of adhesive bonded) web. The resulting laminated microporous article is especially useful as a battery separator and exhibits superior propertries including improved electrical resistance, toughness and tear strength, and flexibility.

REFERENCES:
patent: 2344614 (1944-03-01), Hulse
patent: 2772322 (1956-11-01), Witt et al.
patent: 3418198 (1968-12-01), Emstman
patent: 3779855 (1973-12-01), Fonzi
patent: 3811957 (1974-05-01), Buntin
patent: 3871938 (1975-03-01), Takahasi et al.

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