WOVEN SYNTHETIC HALOGENATED POLYMER FIBERS AS SEPARATOR MATERIAL FOR ELECTROCHEMICAL CELLS

摘要

A fabric separator (10) woven from synthetic halogenated polymeric fibers for use in an electrochemical cell (18) comprising a Group IA, IIA and IIIB metal anode (12) and a depolarizer/catholyte or a solid cathode/electrolyte system (14), is described. The separator (10) is resistant to the highly oxidizing components present in the cell, is tear-resistant and has a reduced thickness to minimize the diminishing effect of the separator on the volumetric amount of active components in the cell. The separator can be used by itself or as a laminate with a microporous film, preferably made of a fluoropolymer fiber.