公开(公告)号：US11870089B2

公开(公告)日：2024-01-09

申请号：US17695070

申请日：2022-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： 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: H01M50/242 ,  H01M50/209 ,  H01M10/658

CPC classification number: H01M50/242 ,  H01M10/658 ,  H01M50/209

Abstract: 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：US20240243403A1

公开(公告)日：2024-07-18

申请号：US18153449

申请日：2023-01-12

Applicant: GM Global Technology Operations LLC

Inventor： Matthew Simonin ,  Patrick H. Clark ,  Ryan J. Prescott ,  Xianfeng Yan

IPC: H01M50/204 ,  H01M10/65 ,  H01M50/249 ,  H01M50/264

CPC classification number: H01M50/204 ,  H01M10/65 ,  H01M50/249 ,  H01M50/264 ,  H01M2220/20

Abstract: A rechargeable energy storage system (RESS), in accordance with a non-limiting example, includes a first energy storage cell including a first outer surface, a second outer surface, a first lateral side, and a second lateral side. The second lateral side includes a first structural side plate including a first side member extending from the first outer surface toward the second outer surface. A second energy storage cell includes a first outer surface portion, a second outer surface portion, a first lateral side surface, and a second lateral side surface. The first lateral side surface includes a second structural side plate including a second side member extending from the second outer surface portion toward the first outer surface portion. The first side member stacks with the second side member to form an interface joining the first energy storage cell with the second energy storage cell.

公开(公告)号：US20230299404A1

公开(公告)日：2023-09-21

申请号：US17695070

申请日：2022-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： 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: H01M50/242 ,  H01M10/658 ,  H01M50/209

CPC classification number: H01M50/242 ,  H01M10/658 ,  H01M50/209

Abstract: 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.