公开(公告)号：US20250079464A1

公开(公告)日：2025-03-06

申请号：US18460788

申请日：2023-09-05

Applicant: GM Global Technology Operations LLC

Inventor： Nathaniel Hardin ,  Yifan Zhao ,  Robert D. Schmidt ,  Fang Dai

IPC: H01M4/60 ,  C08F136/06 ,  H01M4/137 ,  H01M4/62 ,  H01M10/0525

Abstract: Organosulfur cathodes having low porosity and reduced surface area for lithium-sulfur batteries generally include sulfurized poly(1,2-butadiene), wherein the sulfurized poly (1, 2-butadiene) is a reaction product of a poly (1, 2-butadiene) monomer and a cyclic octaatomic sulfur; conductive carbon; and a binder. Optionally, the reaction product that further includes co-monomers including an alkene functionality. The co-monomers can include one or more sulfide groups selected from the group consisting of sulfide, disulfide, and polysulfide.

公开(公告)号：US20250070174A1

公开(公告)日：2025-02-27

申请号：US18456109

申请日：2023-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nathaniel Hardin ,  Fang Dai ,  Adam Van Wiemeersch

IPC: H01M4/62 ,  C08F8/44 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: An electrode for an electrochemical cell is provided herein as well an electrochemical cell including the electrode. The electrode includes an electroactive material; an electrically conductive material; and a binder comprising a lithiated maleic anhydride copolymer.