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    Pre-lithiation of anodes for high performance capacitor assisted battery
    1.
    发明授权
    Pre-lithiation of anodes for high performance capacitor assisted battery 有权

    公开(公告)号：US11239469B2

    公开(公告)日：2022-02-01

    申请号：US15995580

    申请日：2018-06-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhe Li ,  Xiaochao Que ,  Haijing Liu ,  Jingjing Wu ,  Dave G. Rich ,  Saad Hasan

    IPC: H01M4/80 ,  H01M10/0525 ,  H01G11/06 ,  H01M10/056

    Abstract: A hybrid lithium-ion battery/capacitor cell comprising at least a pair of graphite anodes assembled with a lithium compound cathode and an activated carbon capacitor electrode can provide useful power performance properties and low temperature properties required for many power utilizing applications. The graphite anodes are formed of porous layers of graphite particles bonded to at least one side of current collector foils which face opposite sides of the activated carbon capacitor. The porous graphite particles are pre-lithiated to form a solid electrolyte interface on the anode particles before the anodes are assembled in the hybrid cell. The pre-lithiation step is conducted to circumvent the irreversible reactions in the formation of a solid electrolyte interface (SEI) and preserve the lithium content of the electrolyte and lithium cathode during formation cycling of the assembled hybrid cell. The pre-lithiation step is also applicable to other anode materials that benefit from such pre-lithiation.

    Self-heating battery
    2.
    发明授权
    Self-heating battery 有权

    公开(公告)号：US11411261B2

    公开(公告)日：2022-08-09

    申请号：US16487914

    申请日：2017-03-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhiqiang Yu ,  Haijing Liu ,  Xiaochao Que ,  Dave G. Rich ,  Saad Hasan ,  Meiyuan Wu

    IPC: H01M10/615 ,  H01M4/04 ,  H01M4/66 ,  H01M4/75 ,  H01M4/80 ,  H01M10/0587 ,  H01G11/06 ,  H01M10/0525

    Abstract: Lithium-based and sodium-based batteries and capacitors using metal foil current collectors, coated with porous layers of particles of active electrode materials for producing an electric current, may adapted to produce heat for enhancing output when the cells are required to periodically operate during low ambient temperatures. A self-heating cell may be placed in heat transfer contact with a working cell that is temporarily in a cold environment. Or one or both of the anode current collector and cathode current collectors of a heating cell may be formed with shaped extended portions, uncoated with electrode materials, through which cell current may be passed for resistance heating of the extended current collector areas. These extended current collector areas may be used to heat the working area of the cell in which they are incorporated, or to contact and heat an adjacent working cell.

    System to modulate switch resistances within a battery system
    3.
    发明授权
    System to modulate switch resistances within a battery system 有权

    公开(公告)号：US10800285B2

    公开(公告)日：2020-10-13

    申请号：US16290541

    申请日：2019-03-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Dave G. Rich ,  Lyall K. Winger ,  Saad Hasan ,  Varsha K. Sadekar ,  Robert A. De Stefano ,  Gary W. Gantt, Jr.

    IPC: B60L58/19

    Abstract: In an example, a battery control system is disclosed. The battery control system can include a plurality of batteries, a first terminal, a second terminal, and a third terminal. The battery control system also includes a plurality of switches configured to connect a first battery of the plurality of batteries to and from the first terminal and the third terminal and to connect a second battery of the plurality of batteries to and from the second terminal and the third terminal. The battery control system also discloses a switch resistance modulation module configured to modulate a resistance of at least one switch of the plurality of switches between zero ohms and infinity ohms based on a battery parameter and a control signal.

    BATTERY WITH MULTIPLE SETS OF OUTPUT TERMINALS AND ADJUSTABLE CAPACITY
    7.
    发明申请
    BATTERY WITH MULTIPLE SETS OF OUTPUT TERMINALS AND ADJUSTABLE CAPACITY 审中-公开

    公开(公告)号：US20200153051A1

    公开(公告)日：2020-05-14

    申请号：US16275809

    申请日：2019-02-14

    Applicant: GM Global Technology Operations LLC

    Inventor： Lyall K. Winger ,  Dave G. Rich ,  Saad Hasan

    IPC: H01M10/42 ,  B60K6/28

    Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.

    Low voltage battery SOC confirmation and cell balancing
    8.
    发明授权
    Low voltage battery SOC confirmation and cell balancing 有权

    公开(公告)号：US11577624B2

    公开(公告)日：2023-02-14

    申请号：US16893948

    申请日：2020-06-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Saad Hasan ,  Dave G. Rich

    IPC: H02J7/00 ,  H02J7/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/14

    Abstract: A battery system includes at least one battery including a plurality of cells and a hybrid control module configured to monitor a differential capacity of the at least one battery, determine when the monitored differential capacity of the at least one battery corresponds to a predetermined differential capacity of the at least one battery, and determine a state of charge of the battery in response to the determination that the monitored differential capacity corresponds to the predetermined differential capacity.

    Control systems and methods for battery with adjustable capacity
    9.
    发明授权
    Control systems and methods for battery with adjustable capacity 有权

    公开(公告)号：US11152813B2

    公开(公告)日：2021-10-19

    申请号：US16290457

    申请日：2019-03-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Lyall K. Winger ,  Dave G. Rich ,  Saad Hasan

    IPC: H02J7/14 ,  H01M10/04 ,  B60W20/10 ,  H02J1/08

    Abstract: A battery control system includes a battery including: first, second, and third terminals; a plurality of individual groups of two or more battery cells; and a plurality of switches configured to connect ones of the individual groups to and from ones of the first, second, and third terminals. A mode module is configured to set a mode to a first mode when a fault is present in a charging source of the battery. A switch control module is configured to control the plurality of switches based on a first predetermined capacity allotment when the mode is in the first mode.

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