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US 12,763,432 B2Granted
Separator
AssigneeBenQ Materials Corporation
InventorsWan-Ting Lo, Yi-Ting Lo, Meng-Chia Cheng, Tzung Yu Tsai
Life of this patent
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Abstract
A separator is disclosed. The separator comprises a porous polyolefin substrate with a plurality of porous structures on the surfaces and interior thereof, and an anti-thermal shrinkage thin layer formed on the surfaces and the sidewalls of the porous structures of the porous polyolefin substrate. The present separator can provide enhanced high temperature shrinkage resistance and electrolyte wettability.
Claims6
A separator, comprising:
- a porous polyolefin substrate with a plurality of porous structures on surfaces and interior thereof;
- and an anti-thermal shrinkage thin layer formed on the surfaces and sidewalls of the porous structures of the porous polyolefin substrate, wherein the anti-thermal shrinkage thin layer is a composite layer of cross-linked polyolefin, photo-reactive agent consisting of 2-isopropylthioxanthone, thioxanthone, thioxanthone derivatives, hexamethyldisilazane and titanium oxide and/or titanium hydroxide.
Dependencies are inferred from the claim text.