公开(公告)号：US20220166031A1

公开(公告)日：2022-05-26

申请号：US17522331

申请日：2021-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Xiaochao QUE ,  Haijing LIU ,  Yong LU ,  Meiyuan WU ,  Thomas A. YERSAK ,  Mei CAI

IPC: H01M4/80

Abstract: The present disclosure provides a solid-state bipolar battery that includes negative and positive electrodes having thicknesses between about 100 μm and about 3000 μm, and a solid-state electrolyte layer disposed between the negative electrode and the positive electrode and having a thickness between about 5 μm and about 100 μm. The first electrode includes a plurality of negative solid-state electroactive particles embedded on or disposed within a first porous material. The second electrode includes plurality of positive solid-state electroactive particles embedded on or disposed within a second porous material that is the same or different from the first porous material. The solid-state bipolar battery includes a first current collector foil disposed on the first porous material, and a second current collector foil disposed on the second porous material. The first and second current collector foils may each have a thickness less than or equal to about 10 μm.

公开(公告)号：US20210020929A1

公开(公告)日：2021-01-21

申请号：US16514193

申请日：2019-07-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Yong LU ,  Mengyan HOU ,  Zhe LI ,  Haijing LIU

IPC: H01M4/40 ,  H01M4/80 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/66 ,  H01M4/505

Abstract: Solid-state electrodes and methods of forming solid-state electrodes and batteries are provided. The method includes contacting an electrode precursor with a liquid. The liquid includes one or more precursors of an ionically conductive polymer. The electrode precursor includes a plurality of electroactive particles and a plurality of electrolyte particles disposed on a current collector. A plurality of interparticle pores exists between the electroactive and electrolyte particles. When the electrode precursor is contacted with the liquid, the liquid flows into the interparticle pores. The one or more precursors of the ionically conductive polymer are electropolymerized so as to cause the formation of a polymeric matrix (including the ionically conductive polymer) that surrounds and embeds the plurality of electroactive particles and the plurality of electrolyte particles so as to form the solid-state electrode.