Title:
BATTERY CELL, BATTERY MODULE, BATTERY PACK, DEVICE USING BATTERY CELL AS POWER SUPPLY, AND BATTERY CELL ASSEMBLING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/102636
Kind Code:
A1
Abstract:
The present disclosure relates to a battery cell, a battery module, a battery pack, a device using a battery cell as a power supply, and a battery cell assembling method, for use in alleviating the problem of impurities falling into an electrode assembly. The battery cell comprises: an electrode assembly comprising a tab and a cell main body, the tab being connected to the cell main body; a cover plate assembly comprising an electrode terminal and a cover plate, the electrode terminal being disposed on the cover plate; a connecting piece connected between the tab and the electrode terminal, the connecting piece comprising a first connecting portion and a second connecting portion, the first connecting portion being connected to the tab, and the second connecting portion being connected to the electrode terminal; an insulating support plate disposed between the cell main body and the connecting piece; and an insulation protection member disposed between the insulation support plate and the second connecting portion. In the present disclosure, the insulation protection member is provided to catch the impurities falling from the second connecting portion, so as to prevent the impurities from entering the electrode assembly to cause a short circuit, thereby improving the safety performance of the battery cell.
Inventors:
ZHENG YULIAN (CN)
ZHANG XIAOPING (CN)
WANG PENG (CN)
SUN ZHANYU (CN)
ZHANG XIAOPING (CN)
WANG PENG (CN)
SUN ZHANYU (CN)
Application Number:
PCT/CN2019/120642
Publication Date:
June 03, 2021
Filing Date:
November 25, 2019
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M2/04
Domestic Patent References:
| WO2018147603A1 | 2018-08-16 |
Foreign References:
| CN209344216U | 2019-09-03 | |||
| CN208256820U | 2018-12-18 | |||
| CN109314197A | 2019-02-05 | |||
| CN204102963U | 2015-01-14 | |||
| US20160099444A1 | 2016-04-07 |
Other References:
See also references of EP 3855559A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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