Polypropylene separator for use in alkaline storage...

Details Polypropylene separator for use in alkaline storage... Polypropylene separator for use in alkaline storage...

C - Chemistry, Metallurgy

08

J

117/183, 319/63

C08J 7/04 (2006.01) B01D 67/00 (2006.01) D06M 15/59 (2006.01) H01M 2/16 (2006.01)

Patent

CA 1121667

PD-77347 IMPROVED POLYPROPYLENE SEPARATOR Scott A. Verzwyvelt FOR USE IN ALKALINE STORAGE BATTERIES AND PROCESS FOR MAKING SAME ABSTRACT OF THE DISCLOSURE Intrinsically nonwettable polypropylene battery separators are rendered wettable by treating them with polybenzimidazole. Polybenzimidazole (PBI) treated polypropylene (PP) separators exhibited excellent thermal and chemical stabilities, show excellent electrolyte retention, and are gas permeable.

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