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US 2020/0287187 A1Published application
Method for improving physical properties of separator by post-treatment crosslinking and separator prepared thereby
AssigneeLG Chem, Ltd.
InventorsYoung Bok KIM, Min Ji KIM, Kwan Woo NAM, Je An LEE
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Abstract
A method for improving physical properties of a separator in which is capable of increasing insulation, tensile strength and elongation. The separator also has improved physical properties through the above method. Particularly, the present invention is applied to a separator that has already manufactured. After forming a double bond in the separator that has already manufactured, crosslinking may be formed through the double bond or by adding a separate crosslinking initiator.
Claims22
A method for improving physical properties of a separator by post-treatment, comprising the steps of:
- a) preparing a separator comprising:
- a layer comprising a binder,
- said layer present on an optional polyolefin substrate;
- b) transforming the binder into a crosslinkable coupling part by performing deintercalation of elements present in the binder;
- and
- c) treating the separator with a crosslinking initiator and/or a reaction catalyst after the deintercalation in step b).
3 more elements
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Dependencies are inferred from the claim text.