Title:
BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/082138
Kind Code:
A1
Abstract:
The present application relates to the field of batteries, and provides a battery cell, a battery and an electrical device. The battery cell comprises an outer housing, an electrode assembly and a supporting member. The outer housing has a wall portion. The electrode assembly has a body portion and a tab. In a first direction, the tab protrudes from the end of the body portion facing the wall portion. The tab comprises a root portion and a tab portion. The root portion is connected to the body portion and the tab portion. The supporting member is arranged on the side of the body portion facing the wall portion. The supporting member comprises a wing portion, and the tab portion is bent around the wing portion. The wing portion is provided with an accommodating portion. The accommodating portion is used for accommodating a portion of the root portion. The supporting member is arranged between the wall portion and the body portion. The tab portion is bent around the wing portion of the supporting member, such that the tab portion is folded along a fixed form so that the tab can be protected, the tab is not prone to splitting and insertion, and the safety of the battery cell is increased. The accommodating portion is provided on the wing portion, and the root portion of the tab can be accommodated in the accommodating portion. The total space occupied by the wing portion and the root portion is reduced, which is beneficial to increasing the energy density of the battery cell.
Inventors:
XU LIANGFAN (CN)
ZHOU WENLIN (CN)
ZHANG QIANQIAN (CN)
LI XING (CN)
LI QUANKUN (CN)
NIU SHAOJUN (CN)
JIN HAIZU (CN)
ZHOU WENLIN (CN)
ZHANG QIANQIAN (CN)
LI XING (CN)
LI QUANKUN (CN)
NIU SHAOJUN (CN)
JIN HAIZU (CN)
Application Number:
PCT/CN2022/125955
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/593
Foreign References:
| US20220384916A1 | 2022-12-01 | |||
| CN218414978U | 2023-01-31 | |||
| CN214313354U | 2021-09-28 | |||
| CN112771714A | 2021-05-07 | |||
| CN111785901A | 2020-10-16 | |||
| CN208189697U | 2018-12-04 | |||
| CN215451570U | 2022-01-07 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: SAMPLE ANALYSIS DEVICE AND METHOD, AND SYSTEM AND ANALYZER
Next Patent: BATTERY AND ELECTRIC DEVICE
Next Patent: BATTERY AND ELECTRIC DEVICE