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US 9,871,242 B2Granted
Composite separator for lithium secondary battery, and lithium secondary battery using the composite separator
AssigneeSamsung SDI Co., Ltd.
InventorsChan Hong, Jeawoan Lee, Soomi Eo, Seunghee Park
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Abstract
A composite separator and a lithium secondary battery including the composite separator, and the composite separator includes a separator; a first coating layer disposed on a surface of the separator and including a (meth)acrylic polymer and/or (meth)acrylic modified polyester resin; and a second coating layer disposed on another surface of the separator and including a vinylidene fluoride-based polymer.
Claims18
A composite separator for a lithium secondary battery comprising:
- a separator;
- a first coating layer on a surface of the separator and comprising a (meth)acrylic polymer and/or (meth)acrylic modified polyester resin;
- and
- a second coating layer on another surface of the separator and comprising a vinylidene fluoride-based polymer,
- wherein the first coating layer and the second coating layer are different.
2 more elements
Dependencies are inferred from the claim text.