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US 2025/0030128 A1Published application
Separator for rechargeable lithium battery and rechargeable lithium battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorsHyeonseon CHOI, Jungseong LEE, Namju KIM, Jungran LEE, Yeonho LEE, Byongjoon HAN, Jungjin LEE
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Abstract
A separator for a rechargeable lithium battery, the separator includes a substrate; a heat resistant layer on the substrate; and an adhesive layer on the heat resistant layer, wherein the heat resistant layer includes two types of inorganic particles with different D50 particle diameters, and a salt-based heat resistant binder, and the adhesive layer includes a PVdF first adhesive binder, and a cyano group (—CN)-containing acrylic second adhesive binder.
Claims20
A separator for a rechargeable lithium battery, the separator comprising:
- a substrate;
- a heat resistant layer on the substrate;
- and
- an adhesive layer on the heat resistant layer,
- wherein:
- the heat resistant layer includes:
- two types of inorganic particles with different D50 particle diameters, and
- a salt-based heat resistant binder, and
- the adhesive layer includes:
- a PVdF first adhesive binder, and
- a cyano group (—CN)-containing acrylic second adhesive binder.
8 more elements
Dependencies are inferred from the claim text.