公开(公告)号：US20240039118A1

公开(公告)日：2024-02-01

申请号：US17877225

申请日：2022-07-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yifan ZHAO ,  Xingcheng XIAO ,  Shuru CHEN

IPC: H01M50/449 ,  H01M50/491 ,  H01M50/403 ,  H01M50/417 ,  C07F9/576

CPC classification number: H01M50/449 ,  H01M50/491 ,  H01M50/403 ,  H01M50/417 ,  C07F9/576

Abstract: A separator for an electrochemical cell that cycles lithium ions includes a microporous layer and one or more fire suppression layers disposed on at least one of a first side or an opposite second side of the microporous layer. The one or more fire suppression layers include a ceramic material having interconnected open pores and a cyclophosphazene disposed within the interconnected open pores of the ceramic material.

公开(公告)号：US20230282808A1

公开(公告)日：2023-09-07

申请号：US17688163

申请日：2022-03-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sanaz KETABI ,  Shuru CHEN ,  Fang DAI ,  Mei CAI

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/58 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/628 ,  H01M4/364 ,  H01M4/5825 ,  H01M4/382 ,  H01M4/5815 ,  H01M2004/021

Abstract: A method for forming a protective electrode coating on an electrode to be used in a lithium-sulfur battery is provided. The method includes contacting one or more surfaces of the electrode with a polymeric admixture, and polymerizing the polymeric admixture to form the protective electrode coating. The polymeric admixture includes a plurality of monomers, for example heterocyclic acetal monomers and/or cyclic ether monomers, and a lithium difluoro(oxalato)borate (LiDFOB) initiator. In certain instances, the polymeric admixture may also include a structural additive and/or a lithium salt. The contacting may include applying a thin film on the one or more surfaces of the electrode, and the polymerization may be heat activated.

公开(公告)号：US20210159502A1

公开(公告)日：2021-05-27

申请号：US16698303

申请日：2019-11-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang DAI ,  Hongliang WANG ,  Shuru CHEN ,  Qinglin ZHANG ,  Mei CAI

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/66

Abstract: An electrode component for an electrochemical cell is provided herein. The electrode component includes a current collector having a first surface, a metal oxide layer disposed on the first surface of the current collector, and a lithium-containing layer bonded to the first surface of the current collector. The metal oxide layer includes a plurality of features. A method for manufacturing such an electrode component is also provided herein. The method includes directing a laser beam toward the first surface of the current collector in the presence of oxygen to form the metal oxide layer on the first surface and applying the lithium-containing layer to the metal oxide layer thereby bonding the lithium-containing layer with the current collector.

公开(公告)号：US20200220223A1

公开(公告)日：2020-07-09

申请号：US16243509

申请日：2019-01-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meinan HE ,  Shuru CHEN ,  Mei CAI

IPC: H01M10/0569 ,  H01M10/0568 ,  H01M10/0567

Abstract: An ionic liquid electrolyte composition is provided. The ionic liquid electrolyte composition includes an ionic liquid, a conductive salt, and optionally a stabilizing agent. The stabilizing agent is an oxidant, an interface additive, a co-solvent, or a combination thereof.