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公开(公告)号:US20240286525A1
公开(公告)日:2024-08-29
申请号:US18300842
申请日:2023-04-14
Applicant: GM Global Technology Operations LLC
Inventor: Zhenwen Hu , Jian Yao , Chengwu Duan , Yusheng Zou
IPC: B60L58/24 , B60K1/04 , B60L50/60 , H01M10/625 , H01M10/6566 , H01M10/658
CPC classification number: B60L58/24 , B60K1/04 , B60L50/66 , H01M10/625 , H01M10/6566 , H01M10/658 , B60K2001/005 , H01M2220/20
Abstract: A system for thermal management of a battery assembly includes a protective cover in thermal communication with the battery assembly and disposed at a location that is proximate to an external surface of the battery assembly, the protective cover including at least one moveable component. The system also includes an actuator device configured to move the at least one moveable component of the protective cover to establish an insulating air gap between a portion of the protective cover and the battery system, the insulating air gap causing an increase in a thermal resistance of the protective cover.
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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.
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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.
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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.
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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
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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公开(公告)号:US20250096357A1
公开(公告)日:2025-03-20
申请号:US18499726
申请日:2023-11-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Lu Huang , Hui-ping Wang , Chengwu Duan , Derek F. Lahr , Zhenwen Hu , Jian Yao , Blair E. Carlson , Xiaoling Chen
IPC: H01M10/6557 , B60L50/64 , H01M10/613 , H01M10/625 , H01M10/6555 , H01M50/209 , H01M50/249 , H01M50/581
Abstract: The present disclosure describes a multi-function, integrated Super Beam assembly structure with integrated structural, cooling, and transverse elastic compliance functions; and Thermal Management Propagation (TMP) protection. The Super Beam assembly includes a pair of parallel face plates, coolant channel cover plates, and coolant channels that are defined by the face plate and the one or more coolant channel cover plates. The structural design of the cooling channels, and the corresponding air gaps formed in-between them, allows a transverse elastic compliance of the Super Beam assembly to be tuned to different amounts of elasticity. Top, bottom and/or end structural channels may be included. A pair of TMP suppression channels may be attached to the Super Beam assembly structure with an adhesive “thermal fuse” that preferentially melts and causes the pair of TMP suppression channels to detach from the Super Beam assembly during overheating in a TMP event.
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公开(公告)号:US20240291061A1
公开(公告)日:2024-08-29
申请号:US18302455
申请日:2023-04-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Jian Yao , Yue-Yun Wang , Zhenwen Hu , Chengwu Duan , Shuonan Xu
IPC: H01M10/615 , H01M10/625 , H01M10/6555
CPC classification number: H01M10/615 , H01M10/625 , H01M10/6555
Abstract: A mixed chemistry battery including a sensing cell having a first chemistry, a battery cell having a second chemistry that is different than the first chemistry. The mixed chemistry battery also includes a sensor configured to measure a temperature of the mixed chemistry battery and a heating system configured to heat the second battery cell. The mixed chemistry battery further includes a battery monitoring system configured to selectively connect the heating system to at least one of the first battery cell and the second battery cell based upon the temperature of the mixed chemistry battery.
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公开(公告)号:US20240253442A1
公开(公告)日:2024-08-01
申请号:US18193772
申请日:2023-03-31
Applicant: GM Global Technology Operations LLC
Inventor: Chengwu Duan , Jian Yao , Zhenwen Hu , Yusheng Zou
IPC: B60K1/04 , H01M10/613 , H01M10/625 , H01M10/6556 , H01M10/6569 , H01M50/209
CPC classification number: B60K1/04 , H01M10/613 , H01M10/625 , H01M10/6556 , H01M10/6569 , H01M50/209 , B60K2001/006 , H01M2220/20
Abstract: A battery pack includes a first header including a first conduit, a second header including a second conduit, and an energy storage system including a plurality of energy storage cells arranged between the first header and the second header. A coolant plate is arranged between the first header and the second header and abuts the plurality of energy storage cells. The coolant plate including 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.
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