公开(公告)号：US20230030003A1

公开(公告)日：2023-02-02

申请号：US17386745

申请日：2021-07-28

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Sherman H. Zeng ,  Xingcheng Xiao ,  Mei Cai ,  Scott W. Lananna ,  Yangbing Zeng

IPC分类号： H01M10/659 ,  H01M10/6554 ,  H01M10/613 ,  H01M10/6551 ,  H01M10/625 ,  H01M50/204 ,  H01M50/249

摘要： A battery module includes a plurality of battery cells and a thermal energy storage member in thermal contact with the plurality of battery cells. The thermal energy storage member includes an adsorption chamber and an adsorbent material disposed within the adsorption chamber. The adsorbent material is configured to receive thermal energy generated by the plurality of battery cells during charging and discharge of the plurality of battery cells. The thermal energy received by the adsorbent material during charging and discharge of the plurality of battery cells regenerates the adsorbent material and transitions the adsorbent material from an energy released state, in which an adsorbate is physically adsorbed on surfaces of the adsorbent material, to an energy storage state, in which the adsorbent material is substantially free of the adsorbate.

公开(公告)号：US12046773B2

公开(公告)日：2024-07-23

申请号：US17554686

申请日：2021-12-17

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Anil Yadav ,  Scott W. Lananna ,  Evan D. Griffith ,  Anandakrishnan S ,  Evan J. Dawley ,  Julian R. Sherborne ,  Alexander M Bilinski ,  Adam W. Trumbley ,  Phillip D. Hamelin

IPC分类号： H01M50/342 ,  H01M10/658

CPC分类号： H01M50/3425 ,  H01M10/658 ,  H01M2220/20

摘要： A battery module includes a first battery cell and a neighboring second battery cell, and an insulating member positioned therebetween. The battery module also includes a battery module enclosure surrounded by an external environment and configured to house each of the first battery cell, the second battery cell, and the insulating member. The battery module additionally includes a battery module cover mounted to the battery module enclosure. The battery module cover includes a vent feature configured to expel high temperature gases from the first battery cell and divert the high temperature gases away from the second battery cell directly to the external environment. The cover is thereby configured to minimize transfer of the high temperature gases from the first battery cell to the second battery cell and control propagation of a thermal runaway event in the battery module.

公开(公告)号：US20230136430A1

公开(公告)日：2023-05-04

申请号：US17513280

申请日：2021-10-28

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Rebecca A. Palmer ,  Hunter G. Rimatzki ,  Joseph B. Blumka ,  Matthew Pernot ,  Julian R. Sherborne ,  Anil Yadav ,  Scott W. Lananna

IPC分类号： H01M50/209 ,  H01M10/48 ,  H01M10/613 ,  H01M10/653 ,  H01M50/289

摘要： A battery includes a housing having a base. A battery cell stack and an enclosure are supported on the base of the housing. The battery cell stack includes a plurality of battery cells physically separated into a first battery cell group and a second battery cell group. The enclosure includes first and second support walls respectively disposed on opposite first and second sides of the first battery cell group and a canopy extending between the first and second support walls, above the first battery cell group. The enclosure partially surrounds the first battery cell group on three sides and establishes a physical and thermal barrier between the first battery cell group and the second battery cell group.

公开(公告)号：US20240106021A1

公开(公告)日：2024-03-28

申请号：US17951264

申请日：2022-09-23

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Seung-Woo Chu ,  Scott W. Lananna

IPC分类号： H01M10/613 ,  H01M10/653 ,  H01M10/6556 ,  H01M10/6595

CPC分类号： H01M10/613 ,  H01M10/653 ,  H01M10/6556 ,  H01M10/6595

摘要： A battery module includes neighboring first and second battery cells and a heat sink in contact with and configured to absorb thermal energy from each of the battery cells. The module additionally includes a module enclosure surrounded by ambient environment, housing each of the first and second battery cells and the heat sink, and configured to include a thermal conductivity path from the first cell to at least one of the second cell and the heat sink and from the heat sink to the enclosure. The battery module further includes a metal-hydroxide element configured to undergo a chemical decomposition and discharge moisture within the thermal conductivity path in response to thermal energy released by the first cell when the first cell undergoes a thermal runaway event. The metal-hydroxide element thereby controls propagation of the thermal runaway event from the first cell to the second cell.

公开(公告)号：US20230198088A1

公开(公告)日：2023-06-22

申请号：US17554686

申请日：2021-12-17

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Anil Yadav ,  Scott W. Lananna ,  Evan D. Griffith ,  Anandakrishnan S ,  Evan J. Dawley ,  Julian R. Sherborne ,  Alexander M. Bilinski ,  Adam W. Trumbley ,  Philip D. Hamelin

IPC分类号： H01M50/342 ,  H01M10/658

CPC分类号： H01M50/3425 ,  H01M10/658 ,  H01M2220/20

摘要： A battery module includes a first battery cell and a neighboring second battery cell, and an insulating member positioned therebetween. The battery module also includes a battery module enclosure surrounded by an external environment and configured to house each of the first battery cell, the second battery cell, and the insulating member. The battery module additionally includes a battery module cover mounted to the battery module enclosure. The battery module cover includes a vent feature configured to expel high temperature gases from the first battery cell and divert the high temperature gases away from the second battery cell directly to the external environment. The cover is thereby configured to minimize transfer of the high temperature gases from the first battery cell to the second battery cell and control propagation of a thermal runaway event in the battery module.