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US 2020/0006733 A1Published application
Composite separator for secondary battery
AssigneeSK Innovation Co., Ltd.
InventorsKyu Young CHO, Won Sub KWACK, Yun Bong KIM, Hye Jin KIM, Su Ji LEE
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Abstract
Provided are a composite separator and an electrochemical device using the same. More specifically, provided is a composite separator including a coating layer for improving an adhesive property between an electrode and a separator.
Claims13
A composite separator comprising:
- a porous substrate;
- and
- a coating layer formed on the porous substrate, the coating layer containing inorganic particles and a core-shell organic particle binder,
- wherein in the coating layer, the core-shell organic particle binder is more present on a surface of the coating layer than on a bottom surface contacting the porous substrate.
1 more element
Dependencies are inferred from the claim text.