公开(公告)号：US20230040013A1

公开(公告)日：2023-02-09

申请号：US17792658

申请日：2021-01-04

Applicant: BYD COMPANY LIMITED

Inventor： Long HE ,  Huajun SUN ,  Shichao HU ,  Zhiyong AO ,  Yan ZHU

IPC: H01M50/24 ,  H01M50/249 ,  H01M50/271 ,  H01M50/30 ,  H01M50/51 ,  H01M50/224

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a battery sequence. The battery sequence includes multiple cells. A thickness of each cell extends along a first direction. The multiple cells are arranged in sequence along the first direction to form the battery sequence. At least one of the cells includes a metal shell and an electrode core packaged in the metal shell. An air pressure inside the metal shell is lower than an air pressure outside the metal shell. A gap is provided between at least two adjacent cells. A ratio of the gap to the thickness of the cell ranges from 0.001 to 0.15.