公开(公告)号：US20230299404A1

公开(公告)日：2023-09-21

申请号：US17695070

申请日：2022-03-15

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Andrew C. Bobel ,  Anil K. Sachdev ,  Patrick H. Clark ,  Pooja Suresh ,  Ran Wu ,  Jermain E. Onye ,  William Y. Chen ,  Li Yang ,  Chao Hu ,  Yunshan Liu ,  Kuo Sun

IPC分类号： H01M50/242 ,  H01M10/658 ,  H01M50/209

CPC分类号： H01M50/242 ,  H01M10/658 ,  H01M50/209

摘要： A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.

公开(公告)号：US11870089B2

公开(公告)日：2024-01-09

申请号：US17695070

申请日：2022-03-15

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Andrew C. Bobel ,  Anil K. Sachdev ,  Patrick H. Clark ,  Pooja Suresh ,  Ran Wu ,  Jermain E. Onye ,  William Y. Chen ,  Li Yang ,  Chao Hu ,  Yunshan Liu ,  Kuo Sun

IPC分类号： H01M50/242 ,  H01M50/209 ,  H01M10/658

CPC分类号： H01M50/242 ,  H01M10/658 ,  H01M50/209

摘要： A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.

公开(公告)号：US20240243383A1

公开(公告)日：2024-07-18

申请号：US18097646

申请日：2023-01-17

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Ryan P. Hickey ,  Kuo Sun

IPC分类号： H01M10/653 ,  B60L50/60 ,  B60L58/26 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6568

CPC分类号： H01M10/653 ,  B60L50/60 ,  B60L58/26 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6568 ,  H01M2220/20

摘要： A battery module includes a first battery cell and a neighboring second battery cell. The battery module also includes a heat-sink configured to absorb thermal energy from each of the battery cells. The heat-sink includes first and second coolant channels, each associated with and arranged proximate a corresponding first or second battery cell, configured to receive coolant, and defined by a respective cross-sectional area. Each coolant channel cross-sectional area is configured to selectively vary in response to a change in temperature of the associated first or second battery cell. The coolant channel variable cross-sectional areas are configured to bias cooling to a region of the heat-sink proximate to the battery cell experiencing a thermal runaway event and control propagation of the thermal runaway event to the other battery cell.