Battery separator

Details Battery separator Battery separator

H - Electricity

01

M

H01M 10/02 (2006.01) H01M 2/16 (2006.01) H01M 10/06 (2006.01)

Patent

CA 2175783

A battery assembly comprising a separator, spaced metal/metal oxide electrodes and a liquid electrolyte, the improvement comprising a rigid, porous, ceramic separator that is wettable by the liquid electrolyte, that has a porosity of 40-90 volume %, an average pore size in the range of 0.1-25 microns, a thickness of 1-12 mm, and a weight loss of not more than about 5% when exposed to H2SO4 having a specific gravity of 1.28 for 72 hours at 70°C.

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