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    CAPACITOR-ASSISTED BATTERY CELL
    4.
    发明公开
    CAPACITOR-ASSISTED BATTERY CELL 审中-公开

    公开(公告)号：US20230291037A1

    公开(公告)日：2023-09-14

    申请号：US17732618

    申请日：2022-04-29

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dewen KONG ,  Dave G. Rich ,  Xiaochao Que ,  Haijing Liu

    IPC: H01M16/00 ,  H01M4/133 ,  H01M4/62 ,  H01M10/056 ,  H01M4/587 ,  H01M10/0525

    CPC classification number: H01M16/00 ,  H01M4/133 ,  H01M4/623 ,  H01M4/625 ,  H01M10/056 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

    Abstract: A pouch-type, capacitor-assisted battery cell includes: N negative electrodes, where N is an integer greater than one, each of the N negative electrodes includes a first current collector, first particulate electrode material, and a first tab; P positive electrodes, where: P-M ones of the P positive electrodes include a second current collector, second particulate electrode material, and a second tab, M ones of the P positive electrodes include a third current collector, third particulate electrode material including activated carbon (AC) arranged on opposite sides of the third current collector, and a third tab, and P=N−1 and M=2; separators arranged between the N negative electrodes and the P positive electrodes; and a pouch enclosure surrounding the N negative electrodes, the P positive electrodes and the separators; where the M ones of the P positive electrodes are located approximately equidistant from a center of the P positive electrodes.

    Self-heating battery
    6.
    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
    7.
    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.

    System and method for modular dynamically adjustable capacity storage
    8.
    发明授权
    System and method for modular dynamically adjustable capacity storage 有权

    公开(公告)号：US12191686B2

    公开(公告)日：2025-01-07

    申请号：US17467758

    申请日：2021-09-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Chandra S. Namuduri ,  Dave G. Rich ,  Lyall K. Winger ,  Suresh Gopalakrishnan

    IPC: H02J7/00 ,  B60L50/60 ,  H01M10/42

    Abstract: A system for modular dynamically adjustable capacity storage for a vehicle is provided. The system includes a battery pack including a plurality of battery cells, a negative terminal including a chassis ground connection, and a plurality of positive battery pack terminals. The negative terminal and the plurality of positive battery pack terminals are useful for connecting at least one electrical circuit through the battery pack. The system further includes a battery cell switching system, including a plurality of solid-state switches connected to each of the battery cells. The plurality of solid-state switches is operable to selectively connect a portion of the battery cells in parallel, selectively connect the portion of the battery cells in series, and selectively connect one of the plurality of battery cells to one of the plurality of positive battery pack terminals.

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