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    LOW TEMPERATURE STATE-OF-CHARGE CORRECTION FOR A MIXED CHEMISTRY BATTERY
    2.
    发明申请
    LOW TEMPERATURE STATE-OF-CHARGE CORRECTION FOR A MIXED CHEMISTRY BATTERY 有权

    公开(公告)号：US20240393399A1

    公开(公告)日：2024-11-28

    申请号：US18363876

    申请日：2023-08-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jian Yao ,  Zhenwen Hu ,  Chengwu Duan ,  Yue-Yun Wang

    IPC: G01R31/367 ,  G01R31/36 ,  G01R31/378 ,  G01R31/388

    Abstract: A mixed chemistry battery having a first battery cell having a first chemistry and a second battery cell having a second chemistry that is different than the first chemistry is provided. The first battery cell is connected to the second battery cell in series. The mixed chemistry battery includes a battery monitoring system configured to obtain a first SOC of the first battery cell and a second SOC of the second battery cell and based on a determination that an absolute value of a difference between the first SOC and the second SOC is greater than a threshold value, obtain a first capacity retention rate for the first battery cell and a second capacity retention rate for the second battery cell; and update the second SOC based on the first SOC, the first capacity retention rate, and the second capacity retention rate.

    LAYOUT FOR BATTERY PACK WITH MIXED CHEMISTRY CELLS
    3.
    发明公开
    LAYOUT FOR BATTERY PACK WITH MIXED CHEMISTRY CELLS 审中-公开

    公开(公告)号：US20240291085A1

    公开(公告)日：2024-08-29

    申请号：US18302436

    申请日：2023-04-18

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jian Yao ,  Chengwu Duan ,  Zhenwen Hu

    IPC: H01M50/209 ,  H01M4/36

    CPC classification number: H01M50/209 ,  H01M4/364 ,  H01M2220/20

    Abstract: Aspects of the disclosure include a layout for a battery pack having mixed chemistry cells. An exemplary battery pack can include a plurality of first battery cells of a first cell chemistry. Each one of the plurality of first battery cells can include a same first height, a same first width, and a same first length. The battery pack can further include a plurality of second battery cells of a second cell chemistry different than the first cell chemistry. The second cell chemistry can provide a lower capacity than the first cell chemistry. Each one of the plurality of second battery cells can include the same first height, the same first width, and a same second length. The second length can be greater than the first length.

    BATTERY PACK HAVING AN INTEGRATED COOLING SYSTEM
    4.
    发明申请
    BATTERY PACK HAVING AN INTEGRATED COOLING SYSTEM 有权

    公开(公告)号：US20250087785A1

    公开(公告)日：2025-03-13

    申请号：US18500467

    申请日：2023-11-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhenwen Hu ,  Xiaoling Chen ,  Derek F. Lahr ,  Hui-Ping Wang ,  Chengwu Duan ,  Jian Yao ,  Lu Huang

    IPC: H01M10/6556 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6567

    Abstract: A battery pack includes a first header having a first conduit and a second header having a second conduit. The battery pack also includes an energy storage system having energy storage cells arranged between the first header and the second header. A coolant plate assembly is arranged between the first header and the second header and abuts the plurality of energy storage cells. The coolant plate assembly includes a coolant channel having a first end fluidically connected to the first conduit, a second end fluidically connected to the second conduit, and an intermediate portion defining a flow path. The coolant plate assembly also includes a first planar section having a first surface facing the energy storage cells and a second surface having protrusions extending into the coolant channel.

    MODULE BALANCING FOR A MIXED CHEMISTRY BATTERY
    5.
    发明申请
    MODULE BALANCING FOR A MIXED CHEMISTRY BATTERY 有权

    公开(公告)号：US20240391354A1

    公开(公告)日：2024-11-28

    申请号：US18363867

    申请日：2023-08-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Zhenwen Hu ,  Chengwu Duan ,  Jian Yao ,  Yue-Yun Wang ,  Chandra S. Namuduri

    IPC: B60L58/22 ,  B60L58/12 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00

    Abstract: Embodiments include balancing modules during charging of a mixed chemistry battery pack having a first battery module connected in series to a second battery module. Aspects include monitoring a first state-of-charge (SOC) of the first battery module having a first battery chemistry and monitoring a second SOC of the second battery module having a second battery chemistry. Aspects also include selectively activating one of a first bypass switch and a first activation switch of the first battery module based on the first SOC and the second SOC and selectively activating one of a second bypass switch and a second activation switch of the second battery module based on the first SOC and the second SOC. The activation of the first bypass switch prevents the first battery module from charging and activation of the second bypass switch prevents the second battery module from charging.

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