公开(公告)号：US12199292B2

公开(公告)日：2025-01-14

申请号：US17601957

申请日：2020-04-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiya Gotou ,  Toshiyasu Kitamura ,  Mitsutoshi Tajima

IPC: H01M50/10 ,  H01M10/058 ,  H01M10/658 ,  H01M50/102 ,  H01M50/103

Abstract: A battery includes an electrode group, and a rectangular exterior casing that houses the electrode group and includes a tubular side wall, a bottom connected to a lower end of the side wall in a Z direction, and an opening provided at an upper end. An inner surface of the bottom of the exterior casing has a slope inclined with respect to a plane orthogonal to the Z direction. The electrode group is in thermal contact with the slope. The bottom may have a protrusion protruding inward in the Z direction of the exterior casing, and the slope may be formed on the protrusion.