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    COLUMNAR SILICON ANODE HAVING A CARBONACEOUS NETWORK AND METHODS OF FORMING THE SAME
    21.
    发明公开
    COLUMNAR SILICON ANODE HAVING A CARBONACEOUS NETWORK AND METHODS OF FORMING THE SAME 审中-公开

    公开(公告)号：US20240154095A1

    公开(公告)日：2024-05-09

    申请号：US18127444

    申请日：2023-03-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Xingcheng XIAO ,  Qili SU ,  Yong LU

    IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525

    CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/027

    Abstract: An electrochemical cell includes a first electrode that includes a first current collector and a first electroactive material layer disposed on or near the first current collector, a second electrode that includes a second current collector and a second electroactive material layer disposed on or near the second current collector, and a separating layer disposed between the first electroactive material layer and the second electroactive material layer. The second electroactive material layer includes a plurality of hierarchical silicon columns, each of the hierarchical silicon columns has a longest dimension perpendicular to a major axis of the second current collector. The second electroactive material layer also includes a carbonaceous network that at least partially fills interstices defined between hierarchical silicon columns of the plurality of hierarchical silicon columns. The carbonaceous network includes linked carbon atoms that define a plurality of pores.

    HYBRID BATTERY HAVING IMPROVED THERMAL STABILITY AND POWER PERFORMANCE
    22.
    发明公开
    HYBRID BATTERY HAVING IMPROVED THERMAL STABILITY AND POWER PERFORMANCE 审中-公开

    公开(公告)号：US20240055593A1

    公开(公告)日：2024-02-15

    申请号：US17980179

    申请日：2022-11-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yong LU ,  Haijing LIU ,  Jingyuan LIU ,  Meiyuan WU ,  Dewen KONG

    IPC: H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/0525

    CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/028

    Abstract: The present disclosure provides an electrochemical device that cycles lithium ions. The electrochemical device includes at least one first cell unit and at least one second cell unit. The at least one first cell unit includes a nickel-rich positive electroactive material. The nickel-rich positive electroactive material can be represented by:


    LiM1xM2yM3zM4(1-x-y-z)O2

    where M1, M2, M3, and M4 are each a transition metal independently selected from the group consisting of: nickel, manganese, cobalt, aluminum, and combinations thereof, where 0≤x≤1, 0≤y≤1, and 0≤z≤1. The at least one second cell unit includes a phosphate-based positive electroactive material. The phosphate-based electroactive material can be selected from the group consisting of: lithium manganese iron phosphates (LiMnxFe1-xPO4, where 0≤x≤1) (LMFP), lithium vanadium oxygen phosphates (LixVOPO4, where 0≤x≤1), lithium vanadium phosphates, lithium vanadium fluorophosphates, and combinations thereof.

    FREE-STANDING, THIN ELECTROLYTE LAYERS
    23.
    发明公开
    FREE-STANDING, THIN ELECTROLYTE LAYERS 审中-公开

    公开(公告)号：US20240021865A1

    公开(公告)日：2024-01-18

    申请号：US17939527

    申请日：2022-09-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Meiyuan WU ,  Qili SU ,  Yong LU ,  Haijing LIU

    IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/058

    CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/008

    Abstract: An electrochemical cell that includes a first electrode, a second electrode, and an electrolyte layer that is disposed between the first electrode and the second electrode is provided. The electrolyte layer includes a porous scaffold having a porosity greater than or equal to about 50 vol. % to less than or equal to about 90 vol. %, and a solution-processable solid-state electrolyte that at least partially fills the pores of the porous scaffold. The porous scaffold is defined by a plurality of fibers having an average diameter greater than or equal to about 0.01 micrometer to less than or equal to about 10 micrometers and an average length greater than or equal to about 1 micrometer to less than or equal to about 20 micrometers. The solution-processable solid-state electrolyte includes is selected from the group consisting of: sulfide-based solid-state particles, halide-based solid-state particles, hydride-based solid-state particles, and combinations thereof.

    POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY
    24.
    发明公开
    POSITIVE ELECTROACTIVE MATERIALS FOR ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20240021809A1

    公开(公告)日：2024-01-18

    申请号：US18074784

    申请日：2022-12-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Qili SU ,  Yong LU ,  Haijing LIU ,  Lianqi ZHANG ,  Yiming SUN

    IPC: H01M4/525 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0525

    CPC classification number: H01M4/525 ,  H01M4/366 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0525 ,  H01M2004/028

    Abstract: The present disclosure provides a positive electroactive material for an electrochemical cell that cycles lithium ions. The positive electroactive material includes a nickel-rich material including a plurality of solid-state particles. Each solid-state particle has a heterogeneous structure that includes a core and a shell that at least partially coats the core. The core includes a nickel-cobalt-manganese material, and the shell includes a nickel-cobalt-aluminum material. When the nickel-rich material is represented by LiNi(1-x-y-z)CoxMnyAl2O2, the nickel-cobalt-manganese material is represented by LiNi(i-x″-(y/a))Cox″Mn(y/a)O2, and the nickel-cobalt-aluminum material is represented by LiNi(i-x″-(z/b))Cox″Al(z/b)O2, where (i) 1-x-y-z>0.5, (ii) a+b=1, (iii) zx″+bx″=x, and (iv) 1-x″-(y/a)>1-x″-(z/b). In certain variations, the core and the shell define a base structure, and the heterogeneous structure further includes a buffer layer that at least partially coats the base structure.

    SOLID-STATE ELECTROLYTES AND METHODS FOR MAKING THE SAME
    26.
    发明申请
    SOLID-STATE ELECTROLYTES AND METHODS FOR MAKING THE SAME 有权

    公开(公告)号：US20210111426A1

    公开(公告)日：2021-04-15

    申请号：US16786469

    申请日：2020-02-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe LI ,  Yong LU ,  Xiaochao QUE ,  Haijing LIU

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: The present disclosure relates to solid-state electrolytes and methods of making the same. The method includes admixing a sulfate precursor including one or more of Li2SO4 and Li2SO4.H2O with one or more carbonaceous capacitor materials. The first admixture is calcined to form an electrolyte precursor that is admixed with one or more additional components to form the solid-state electrolyte. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is about 1:2, the electrolyte precursor consists essentially of Li2S. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is less than about 1:2, the electrolyte precursor is a composite precursor including a solid-state capacitor cluster including the one or more carbonaceous capacitor materials and a sulfide coating including Li2S disposed on one or more exposed surfaces of the solid-state capacitor cluster.

    ELECTROCHEMICAL CELLS INCLUDING SULFUR-CONTAINING CAPACITORS
    28.
    发明申请
    ELECTROCHEMICAL CELLS INCLUDING SULFUR-CONTAINING CAPACITORS 有权

    公开(公告)号：US20210065992A1

    公开(公告)日：2021-03-04

    申请号：US16661364

    申请日：2019-10-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yong LU ,  Zhe LI

    IPC: H01G11/06 ,  H01G11/28 ,  H01G11/34 ,  H01G11/46 ,  H01M4/40 ,  H01M4/505 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525

    Abstract: A capacitor-assisted electrochemical cell according to various aspects of the present disclosure includes at least two first electrodes including one or more positive electroactive material layers disposed in electrical communication with a positive current collector; at least one second electrode including one or more first negative electroactive material layers disposed in electrical communication with a first negative current collector; and at least one composite electrode including one or more second negative electroactive material layers disposed in electrical communication with a second negative current collector. The second negative electroactive material layers may be in the form of a plurality of negative electroactive particles including one or more of a carbonaceous material and a metal oxide. Each negative electroactive particle may have a plurality of pores and a plurality of sulfur-additive particles disposed within the plurality of pores.

    GEL-BASED SOLID-STATE BATTERY CELL
    30.
    发明公开
    GEL-BASED SOLID-STATE BATTERY CELL 审中-公开

    公开(公告)号：US20240283057A1

    公开(公告)日：2024-08-22

    申请号：US18360086

    申请日：2023-07-27

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yong LU ,  Zhe Li ,  Qili SU ,  Dave G. RICH ,  Haijing LIU

    IPC: H01M12/02

    CPC classification number: H01M12/02 ,  H01M2300/0085

    Abstract: A solid-state battery cell includes an anode electrode comprising an anode current collector and an anode coating. A cathode electrode comprises a cathode current collector and a cathode coating, wherein the anode electrode and the cathode electrode exchange lithium ions. A separator layer is arranged between the anode electrode and the cathode electrode. A first capacitor electrode is arranged at least one of between the anode coating and a first side of the separator layer, between the anode coating and the anode current collector, between a second side of the separator layer and the cathode coating, and between the cathode coating and the cathode current collector.

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