Lithium-ion battery using heat-activatable microporous membrane
AssigneePolicell Technologies, Inc.
InventorLuying Sun
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Abstract
The present application discloses a lithium-ion battery using heat-activatable microporous membrane which comprises a hot-melt adhesive, an engineering plastics, a tackifier and a filler. It also discloses methods of preparing such microporous membrane and the lithium-ion batteries. The battery built with the use of the microporous membrane of the present invention shows high rate capability, long cycle life, and low as well as stable impedance during charge-discharge cycling. The microporous membrane of the present invention also shows thermal shutdown behavior.
Claims20
A battery comprising (1) at least one positive electrode, (2) at least one negative electrode, (3) an electrolyte, and (4) a microporous membrane having at least one layer which comprises (a) a hot-melt adhesive, (b) an engineering plastics, (c) a tackifier and (d) a filler.
Dependencies are inferred from the claim text.