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    ELECTRODES INCLUDING POLYMER BINDER NETWORKS WITH BAMBOO-TYPE FIBERS
    2.
    发明公开
    ELECTRODES INCLUDING POLYMER BINDER NETWORKS WITH BAMBOO-TYPE FIBERS 审中-公开

    公开(公告)号：US20230231141A1

    公开(公告)日：2023-07-20

    申请号：US17884214

    申请日：2022-08-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dewen KONG ,  Meiyuan WU ,  Haijing LIU ,  Si CHEN

    IPC: H01M4/62

    CPC classification number: H01M4/623 ,  H01M2004/021

    Abstract: The present disclosure provides an electrode for an electrochemical cell. The electrode includes a polymer binder network and a plurality of electroactive material particles. The polymer binder network includes a plurality of fibers defining the polymer binder network. Each of the plurality of fibers includes a plurality of beads and a plurality of filaments. The plurality of filaments extends from at least a portion of the plurality of beads, respectively. The plurality of electroactive material particles is in voids of the polymer binder network. In certain aspects, the present disclosure provides a single- or double-sided electrode component including a current collector and the electrode.

    SOLID-STATE ELECTRODES AND METHODS FOR MAKING THE SAME
    3.
    发明申请
    SOLID-STATE ELECTRODES AND METHODS FOR MAKING THE SAME 有权

    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.

    FABRICATION PROCESS TO MAKE ELECTRODES BY ROLLING
    9.
    发明申请
    FABRICATION PROCESS TO MAKE ELECTRODES BY ROLLING 有权

    公开(公告)号：US20220173370A1

    公开(公告)日：2022-06-02

    申请号：US17539811

    申请日：2021-12-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Dewen KONG ,  Xiaochao QUE ,  Meiyuan WU ,  Haijing LIU ,  Xiaosong HUANG ,  Mark W. VERBRUGGE

    IPC: H01M4/04 ,  H01M10/058 ,  H01M4/1397 ,  H01M4/30

    Abstract: A method of manufacturing an electrode for an electrochemical cell includes providing an admixture including an electroactive material, a binder, and a solvent. The method further includes rolling the admixture to form a sheet and forming a multi-layer stack from the sheet. The method further includes forming an electrode film precursor by performing a plurality of sequential rollings, each including rolling the stack through a first gap. The plurality of sequential rollings includes first and second rollings. In the first rolling, the stack is in a first orientation. In the second rolling, the stack is in a second orientation different from the first orientation. The method further includes forming an electrode film by rolling the electrode film precursor through a second gap less than or equal to the first gap. The method further includes drying the electrode film to remove at least a portion of the solvent.

    BI-CAPACITOR DESIGN FOR FAST STATE OF CHARGE EQUALIZATION
    10.
    发明公开
    BI-CAPACITOR DESIGN FOR FAST STATE OF CHARGE EQUALIZATION 审中-公开

    公开(公告)号：US20240270121A1

    公开(公告)日：2024-08-15

    申请号：US18359411

    申请日：2023-07-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jingyuan LIU ,  Qili SU ,  Dave G. RICH ,  Si CHEN ,  James MORRISON ,  Dewen KONG ,  Haijing LIU

    IPC: B60L58/22 ,  B60L58/12 ,  B60L58/19

    CPC classification number: B60L58/22 ,  B60L58/12 ,  B60L58/19 ,  B60L2240/547

    Abstract: A state of charge (SOC) balancing system includes: first and second batteries; first and second capacitors; an SOC module configured to determine first and second SOCs of the first and second batteries, respectively; and a switching module configured to selectively, when the first SOC is greater than the second SOC: (i) electrically connect the first and second capacitors in parallel; (ii) electrically connect the first battery to the first and second capacitors while the first and second capacitors are electrically connected in parallel; (iii) electrically disconnect the first battery from the first and second capacitors; (iv) electrically connect the first and second capacitors in series; (v) electrically connect the second battery to the first and second capacitors while the first and second capacitors are electrically connected in series; and (vi) electrically disconnect the second battery from the first and second capacitors.

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