公开(公告)号：US20240063433A1

公开(公告)日：2024-02-22

申请号：US18268293

申请日：2021-12-23

Applicant: UMICORE

Inventor： Shinichi KUMAKURA ,  Masataka KUBO

IPC: H01M10/0565 ,  H01M10/0525

CPC classification number: H01M10/0565 ,  H01M10/0525 ,  H01M2300/0082

Abstract: A polymer electrolyte suitable for use in lithium-ion secondary batteries is obtained by reaction between: at least one polyether polymer [polymer (P)], said polymer (P) comprising: at least 70.0% by moles of oxyethylene units; from 0.0 to 10.0% by moles of oxypropylene units; and from 1.00 to 4.0% by moles of recurring units derived from at least one monomer and at least one polysiloxane compound. Said at least one polysiloxane compound is grafted to said at least one polymer (P) through reaction of at least a fraction of the —CH═CH2 moiety of monomer (M) with the H—Si moiety of the polysiloxane compound.