Title:
SHELL, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/221278
Kind Code:
A1
Abstract:
The present application relates to the technical field of batteries. Provided are a shell, a battery cell, a battery and an electric device. The shell comprises a bottom wall and a side wall, wherein the side wall is arranged around the periphery of the bottom wall; and an outer surface of the bottom wall is connected to an outer surface of the side wall by means of a first rounded surface, the thickness of the bottom wall being a, and the radius of the first rounded surfaces being R1, satisfying R1/a≤10. The size of a transition surface between an inner surface of the bottom wall and an inner surface of the side wall can be within a reasonable range, such that the size of space at a corner between the bottom wall and the side wall is within a reasonable range, thereby avoiding excessive wasting of space inside the shell and being conducive to improving the energy density of the battery cell.
Inventors:
SUN DONGSHENG (CN)
CHI QINGKUI (CN)
CHAI ZHISHENG (CN)
JIN HAIZU (CN)
CHI QINGKUI (CN)
CHAI ZHISHENG (CN)
JIN HAIZU (CN)
Application Number:
PCT/CN2022/105802
Publication Date:
November 23, 2023
Filing Date:
July 14, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/107
Foreign References:
| CN103872269A | 2014-06-18 | |||
| CN101083311A | 2007-12-05 | |||
| CN102903862A | 2013-01-30 | |||
| US20160049619A1 | 2016-02-18 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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