Title:
BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/082141
Kind Code:
A1
Abstract:
Embodiments of the present application relates to the technical field of batteries, and provide a battery cell, a battery, and an electrical device. The battery cell comprises a shell, an electrode assembly, an electrode terminal, and a blocking member. The shell has a wall portion, and the electrode assembly is accommodated in the shell. The electrode terminal is provided on the wall portion; the electrode terminal is provided with a stepped hole; in the thickness direction of the wall portion, the electrode terminal has a first surface farthest from the electrode assembly; the stepped hole comprises a first hole section and a second hole section which are continuously arranged; the first hole section is arranged on the first surface, and the second hole section is arranged on the side of the first hole section close to the electrode assembly. The blocking member is at least partially located in the second hole section, the blocking member is connected to the electrode terminal by means of soldering, and a soldering portion is formed at the soldering position. The first hole section is used for accommodating at least a part of the soldering portion, so that the soldering portion does not protrude from the first surface. The battery cell having such a structure has the capability to realize stable electrical connection with an external component, and the stable electrical connection between the external component and the electrode terminal can be realized.
Inventors:
CHEN SHENGWANG (CN)
GUO ZHIJUN (CN)
WANG PENG (CN)
GUO ZHIJUN (CN)
WANG PENG (CN)
Application Number:
PCT/CN2022/125965
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/107; H01M50/559; H01M50/627; H01M50/636
Foreign References:
| CN216720089U | 2022-06-10 | |||
| JP2013051185A | 2013-03-14 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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