Title:
BATTERY CELL AND MANUFACTURING METHOD THEREFOR, BATTERY, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/086981
Kind Code:
A1
Abstract:
Provided are a battery cell (20) and a manufacturing method therefor, a battery (100), and an electrical device, relating to the technical field of batteries. The battery cell (20) comprises a housing (21), a conductive column (22), and an end cover (23). An accommodating cavity (211) is formed in the housing (21), and in a first direction (X), an opening (212) is provided at one end of the housing (21), and a first active material layer (24) is provided at the side of the housing (21) facing the accommodation cavity (212). The conductive column (22) is inserted in the accommodating cavity (212) in the first direction (X), a second active material layer (25) is provided on the outer peripheral surface of the conductive column (22), the second active material layer (25) is arranged to face the first active material layer (24), and the polarity of the second active material layer (25) and the polarity of the first active material layer (24) are opposite. The end cover (23) covers the opening (212) and is connected to the conductive column (22). Such a battery cell (20) does not require winding of electrode sheets, so that the process of assembling and connecting a current collecting component and a tab to each other is removed, the production efficiency of the battery cell (20) is improved; and there is no need to provide a number of electrolytes in the housing, and members such as a current collecting component are removed, so that the manufacturing costs are reduced, and the space utilization of the battery cell (20) is improved.
Inventors:
XU HU (CN)
JIN HAIZU (CN)
ZENG YUQUN (CN)
ZHAO FENGGANG (CN)
GUO JIPENG (CN)
NIU SHAOJUN (CN)
JIN HAIZU (CN)
ZENG YUQUN (CN)
ZHAO FENGGANG (CN)
GUO JIPENG (CN)
NIU SHAOJUN (CN)
Application Number:
PCT/CN2022/127083
Publication Date:
May 02, 2024
Filing Date:
October 24, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/058; H01M4/13; H01M4/75; H01M10/052; H01M10/0525; H01M10/054
Foreign References:
| CN106910932A | 2017-06-30 | |||
| CN104126242A | 2014-10-29 | |||
| CN218887269U | 2023-04-18 | |||
| CN114142124A | 2022-03-04 | |||
| CN113348574A | 2021-09-03 | |||
| CN114628861A | 2022-06-14 | |||
| CN215771307U | 2022-02-08 | |||
| JP2008066040A | 2008-03-21 | |||
| JP2002151055A | 2002-05-24 | |||
| US20150349344A1 | 2015-12-03 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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