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    Solid-state electrolytes and methods for making the same
    1.
    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

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Zhe Li ,  Yong Lu ,  Xiaochao Que ,  Haijing Liu

    IPC分类号： H01M10/0562 ,  H01M10/0525

    摘要： 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
    2.
    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

    申请人： GM Global Technology Operations LLC

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

    IPC分类号： H01M10/0562 ,  H01M10/0525

    摘要： 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
    3.
    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

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

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

    摘要： 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
    5.
    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

    申请人： GM Global Technology Operations LLC

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

    IPC分类号： H01M10/0562 ,  H01M10/0525

    摘要： 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.

    LITHIUM-ION BATTERY WITH WIRE-CONTAINING ELECTRODES
    7.
    发明申请
    LITHIUM-ION BATTERY WITH WIRE-CONTAINING ELECTRODES 审中-公开

    公开(公告)号：US20190288328A1

    公开(公告)日：2019-09-19

    申请号：US16304718

    申请日：2016-06-21

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Zhiqiang Yu ,  Xiaochao Que ,  Haijing Liu ,  Wentian Gu ,  Meiyuan Wu

    IPC分类号： H01M10/0525 ,  H01M10/04 ,  H01M4/134 ,  H01M4/1391

    摘要： The electrical performance and structural integrity of lithium battery electrodes, formed of particles of active electrode materials, are improved by mixing electrically conductive wires (metal wires, carbon fibers, and/or the like, including chemically-reduced metal oxide particles) with the particles of active electrode material. For example, copper wires may be intimately mixed with anode particles in porous anode layers which are resin-bonded to sides of a copper current collector foil. And aluminum wires may be mixed with cathode particles in porous cathode layers resin bonded to an aluminum current collector. The wires may be used to increase both the conductivity of electrons and lithium ions and the flexibility of the electrode layer when the electrodes are infiltrated with a solution of a lithium salt electrolyte. The workable thickness of each electrode layer can thus be increased and its performance enhanced to produce a lower cost and better forming battery.

    BATTERY SYSTEM INCLUDING ALTERNATING CURRENT, FAST-CHARGEABLE CAPACITOR ASSISTED BATTERIES
    9.
    发明申请
    BATTERY SYSTEM INCLUDING ALTERNATING CURRENT, FAST-CHARGEABLE CAPACITOR ASSISTED BATTERIES 有权

    公开(公告)号：US20230093233A1

    公开(公告)日：2023-03-23

    申请号：US17563295

    申请日：2021-12-28

    申请人： GM Global Technology Operations LLC

    发明人： Qili Su ,  Dewen Kong ,  Si Chen ,  Haijing Liu ,  Dave G. Rich ,  Lyall K. Winger

    IPC分类号： H01M10/42 ,  H02J7/00 ,  H01M10/44

    摘要： A capacitor assisted battery module includes a first diode including an anode and a cathode. A second diode includes an anode and a cathode. The anode of the first diode is connected to the cathode of the second diode at a first node. A first capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, where N is an integer greater than zero. The positive terminal of the first CAB block is connected to the cathode of the first diode. A second capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, wherein the negative terminal of the second CAB block is connected to the anode of the second diode. The negative terminal of the first CAB block and the positive terminal of the second CAB block are connected to a second node.

    CAPACITOR-ASSISTED LITHIUM-SULFUR BATTERY
    10.
    发明申请
    CAPACITOR-ASSISTED LITHIUM-SULFUR BATTERY 有权

    公开(公告)号：US20220181710A1

    公开(公告)日：2022-06-09

    申请号：US17542294

    申请日：2021-12-03

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Zhe Li ,  Yong Lu ,  Haijing Liu

    IPC分类号： H01M10/42 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/587

    摘要： The present disclosure relates to capacitor-assisted lithium-sulfur batteries including capacitor electrodes and/or capacitor-based interlayers. For example, a capacitor-assisted lithium-sulfur battery that includes two or more cells is provided. Each cell includes at least two electrodes selected from: a first electrode including a sulfur-containing electroactive material; a second electrode including a negative electroactive material; a first capacitor electrode including a positive capacitor active material; and a second capacitor electrode including a negative capacitor active material. Each electrode may be disposed adjacent to a surface of a current collector and a separator may be disposed between adjacent electrodes so as to provide electrical separation. One of the two or more cells includes the first electrode and the second electrode, and no cell includes both the first electrode and the first capacitor electrode or both the second electrode and the second capacitor electrode. Each cell may further include at least one capacitor-based interlayer.