公开(公告)号：US11450917B2

公开(公告)日：2022-09-20

申请号：US16639845

申请日：2018-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya Oka ,  Hiroshi Yoshizawa ,  Shigeki Matsuta ,  Yoshiaki Araki

IPC: H01M50/293 ,  H01M50/289 ,  H01M50/291

Abstract: The power storage device is provided with a cell stack body formed by alternately arranging a plurality of secondary cells and a plurality of buffer plates. Each of the buffer plates has a non-deformable section and a deformable section that is elastically deformed according to a volume change in the secondary cell. The non-deformable section has a through hole in which the deformable section is fitted. The deformable section is formed thicker than the non-deformable section.

公开(公告)号：US20210135317A1

公开(公告)日：2021-05-06

申请号：US16639845

申请日：2018-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya Oka ,  Hiroshi Yoshizawa ,  Shigeki Matsuta ,  Yoshiaki Araki

IPC: H01M50/48 ,  H01M50/474

Abstract: The power storage device is provided with a cell stack body formed by alternately arranging a plurality of secondary cells and a plurality of buffer plates. Each of the buffer plates has a non-deformable section and a deformable section that is elastically deformed according to a volume change in the secondary cell. The non-deformable section has a through hole in which the deformable section is fitted. The deformable section is formed thicker than the non-deformable section.