Composite separator for secondary battery and lithium secondary battery including the same
AssigneeSK Innovation Co., Ltd.
InventorsYun Bong KIM, Won Sub KWACK, Hye Jin KIM, Su Ji LEE, Kyu Young CHO
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Abstract
Provided are a composite separator for a secondary battery including: a porous substrate; and a coating layer, formed on the porous substrate, by thermally curing aqueous slurry including inorganic particles, first binder particles, a second binder, and a thermal curing agent, wherein the first binder particles contain a copolymer of a monomer mixture including an acrylamide-based monomer, a vinyl cyanide-based monomer, an acrylic monomer having a carboxyl group, and an acrylic monomer having a hydroxyl group, and a lithium secondary battery including the same.
Claims8
A composite separator for a secondary battery comprising:
- a porous substrate;
- and
- a coating layer formed on the porous substrate, by thermally curing aqueous slurry including inorganic particles, first binder particles, a second binder, and a thermal curing agent,
- wherein the first binder particles contain a copolymer of a monomer mixture including an acrylamide-based monomer, a vinyl cyanide-based monomer, an acrylic monomer having a carboxyl group, and an acrylic monomer having a hydroxyl group.
Dependencies are inferred from the claim text.