Title:
END COVER ASSEMBLY, BATTERY CELL, BATTERY, POWERED DEVICE, AND LIQUID INJECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/047652
Kind Code:
A1
Abstract:
The present application relates to an end cover assembly, a battery cell, a battery, a powered device, and a liquid injection method. The end cap assembly (10) is used in the battery cell (600), and comprises an end cover (1), seal (2) and a cover body (3). The end cover (1) is provided with a first hole (11) for injecting an electrolyte, the seal (2) is used for sealing the first hole (11), the cover body (3) is used for covering at least a portion of the seal (2), and the cover body (3) is able to rotate relative to the end cover (1) in order to implement detachable connection between the cover body (3) and the end cover (1). A second hole (21) is provided in one of either the seal (2) or the cover body (3), and a protrusion (31) is provided on the other of either the seal (2) or the cover body (3), the protrusion (31) being used for insertion into the second hole (21) and the protrusion (31) and the second hole (31) being able to rotate relative to each other, in order to implement rotatable connection between the seal (2) and the cover body (3).
Inventors:
CHEN XINXIANG (CN)
ZHENG YULIAN (CN)
HUANG SHOUJUN (CN)
WANG PENG (CN)
LI WEI (CN)
ZHENG YULIAN (CN)
HUANG SHOUJUN (CN)
WANG PENG (CN)
LI WEI (CN)
Application Number:
PCT/CN2020/112983
Publication Date:
March 10, 2022
Filing Date:
September 02, 2020
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/636; F16J15/06; H01M50/147
Foreign References:
| CN111490192A | 2020-08-04 | |||
| CN207040871U | 2018-02-27 | |||
| CN209786066U | 2019-12-13 | |||
| CN205752280U | 2016-11-30 | |||
| JP2014099266A | 2014-05-29 |
Other References:
See also references of EP 3993152A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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