Patent ID: 11862811
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. A method for manufacturing a functional separator comprising the steps of:
(a) modifying a terminal of a polyethylene oxide;
(b) preparing a polyethylene oxide-conductive carbon composite by chemically bonding a terminal functional group of the modified polyethylene oxide with conductive carbon to form a polyethylene oxide-conductive carbon composite; and
(c) coating the prepared polyethylene oxide-conductive carbon composite on the surface of the base separator,
wherein the conductive carbon is thermally exfoliated reduced graphene oxide having a mass ratio of carbon and oxygen of about 9:1, and
wherein a coating weight of the polyethylene oxide-conductive carbon composite layer is 6 μg/cm2 to 74 μg/cn2 based on a surface area of the base separator.