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    BATTERY CELL ENCLOSURE WITH ANTI-GRAVITY ELECTROLYTE DISTRIBUTION
    61.
    发明公开
    BATTERY CELL ENCLOSURE WITH ANTI-GRAVITY ELECTROLYTE DISTRIBUTION 审中-公开

    公开(公告)号：US20230402687A1

    公开(公告)日：2023-12-14

    申请号：US17835344

    申请日：2022-06-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jing Gao ,  Brian J. Koch ,  Yanyan Zhang ,  Zhe Li ,  Daniel J. Wilson ,  Xingcheng Xiao

    IPC: H01M50/131 ,  H01M50/116

    CPC classification number: H01M50/131 ,  H01M50/116

    Abstract: A battery cell includes an anode, a cathode, a liquid electrolyte, and a battery cell case. The battery cell case is configured to house the anode, the cathode, and the liquid electrolyte and includes a case interior wall arranged proximate one of the anode and the cathode, a battery case ceiling, and a battery case floor catching and collecting the liquid electrolyte due to force of gravity. The case interior wall defines a pattern of surface tension varying between hydrophobic and hydrophilic along the case interior wall between the battery case floor and the battery cell ceiling. The pattern of surface tension thereby facilitates self-propulsion of the liquid electrolyte in opposition to the force of gravity and a predetermined distribution of the liquid electrolyte along the battery cell wall.

    ELECTRODE SEPARATOR WITH PIEZOELECTRIC LAYER FOR IN-STACK PRESSURE SENSING AND DENDRITE CLEANING
    64.
    发明公开
    ELECTRODE SEPARATOR WITH PIEZOELECTRIC LAYER FOR IN-STACK PRESSURE SENSING AND DENDRITE CLEANING 审中-公开

    公开(公告)号：US20230253637A1

    公开(公告)日：2023-08-10

    申请号：US17592630

    申请日：2022-02-04

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jing Gao ,  Zhe Li ,  Xingcheng Xiao ,  Brian J. Koch ,  Michael A Lelli ,  Dave G. Rich

    IPC: H01M10/48 ,  H01L41/113 ,  H01M50/293 ,  H01L41/047

    CPC classification number: H01M10/48 ,  H01L41/0475 ,  H01L41/1132 ,  H01M50/293

    Abstract: Presented are electrochemical devices with in-stack pressure sensors, methods for making/using such devices, and battery cells with electrode stacks having an electrode separator assembly with a piezoelectric layer for in-stack pressure sensing and dendrite cleaning. An electric machine, such as a lithium-class secondary battery cell for example, includes a device housing with an ion-conducting electrolyte located inside the device housing. A stack of working electrodes is also located inside the device housing, in electrochemical contact with the electrolyte. At least one electrode separator assembly is located inside the device housing, interposed between a neighboring pair of the working electrodes. The electrode separator assembly includes a pair of separator layers that transmit therethrough the ions of the electrolyte, and a piezoelectric layer that is interposed between the two separator layers. The piezoelectric layer outputs an electrical signal in response to deformation of one or both of the neighboring working electrodes.

    Solid-state electrolytes and methods for making the same
    66.
    发明授权
    Solid-state electrolytes and methods for making the same 有权

    公开(公告)号：US11600851B2

    公开(公告)日：2023-03-07

    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.

    Sulfide-impregnated solid-state battery
    67.
    发明授权
    Sulfide-impregnated solid-state battery 有权

    公开(公告)号：US11539071B2

    公开(公告)日：2022-12-27

    申请号：US16578880

    申请日：2019-09-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

    Capacitor-assisted solid-state battery with quasi-solid-state electrolyte
    69.
    发明授权
    Capacitor-assisted solid-state battery with quasi-solid-state electrolyte 有权

    公开(公告)号：US11171365B2

    公开(公告)日：2021-11-09

    申请号：US16390782

    申请日：2019-04-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

    IPC: H01M10/42 ,  H01M10/0565 ,  H01M10/0525 ,  H01M10/0562

    Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain quasi-solid-state electrode material and are separated with a layer of quasi-solid-state electrolyte material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location, number and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.

    SULFIDE-IMPREGNATED SOLID-STATE BATTERY
    70.
    发明申请
    SULFIDE-IMPREGNATED SOLID-STATE BATTERY 有权

    公开(公告)号：US20210036360A1

    公开(公告)日：2021-02-04

    申请号：US16578880

    申请日：2019-09-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Yong Lu ,  Mark W. Verbrugge ,  Meiyuan Wu

    IPC: H01M10/0562 ,  H01M10/0525

    Abstract: A sulfide-impregnated solid-state battery is provided. The battery comprises a cell core constructed by basic cell units. Each unit comprises a positive electrode comprising a cathode layer and a positive meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The cell unit further comprises a negative electrode comprising an anode layer and a negative meshed current collector comprising a conductive material which is further coated by oxide-based solid-state electrolyte. The positive and negative electrodes are stacked together to form the cell unit. The two coated oxide-based solid electrolyte layers are disposed between the positive and negative electrode as dual separators. Such a cell unit may be repeated or connected in parallel or bipolar stacking to form the cell core to achieve a desired battery voltage, power and energy. The cell core comprises a sulfide-based solid-state electrolyte dispersed in the pore structures of cell core.

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