公开(公告)号：US20230018565A1

公开(公告)日：2023-01-19

申请号：US17752429

申请日：2022-05-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki NAGAI ,  Takaaki MATSUI ,  Takafumi NOSE ,  Koichiro ISOBE ,  Ryo NOGIMURA ,  Kazuyuki KANAI

IPC: H01M50/242 ,  H01M50/209 ,  H01M50/489

Abstract: A battery module includes: a plurality of battery cells each of which has a flat shape; a plurality of elastic spacers laminated and disposed alternately with the battery cells; and a restraining member configured to restrain the battery cells and the elastic spacers in a laminating direction of the battery cells. Each of the elastic spacers has a sheet portion that extends between two adjacent battery cells and a plurality of protrusions that protrudes from one surface of the sheet portion. The protrusions are disposed at an equal interval along at least a first direction. When an interval between the protrusions in the first direction is x and a dimension of each protrusion in the first direction is y, relationships of 4 mm≤y≤18 mm, y≥4/9x−10/3, and y≤x−2 are satisfied.