Title:
WELDING APPARATUS FOR MANUFACTURING SECONDARY BATTERY, AND WELDING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/039488
Kind Code:
A1
Abstract:
The present invention relates to a welding apparatus for manufacturing a secondary battery and a welding method using same, wherein it is possible to prevent deformation of a product due to four-way pressure generated in the process of sealing and fixing a cover to an opening of a body case during the manufacture of a secondary battery, or welding unevenness due to pressure unevenness of the cover.
Inventors:
LEE JIN YEONG (KR)
LEE JIN SOO (KR)
SON BU WON (KR)
JUNG YEONG HUN (KR)
LEE YONG GON (KR)
PARK JEONG HO (KR)
PARK GEUN YOUNG (KR)
LEE JIN SOO (KR)
SON BU WON (KR)
JUNG YEONG HUN (KR)
LEE YONG GON (KR)
PARK JEONG HO (KR)
PARK GEUN YOUNG (KR)
Application Number:
PCT/KR2021/010942
Publication Date:
February 24, 2022
Filing Date:
August 18, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B23K26/12; B23K26/24; B23K37/04
Foreign References:
| KR20180074966A | 2018-07-04 | |||
| JP2013041752A | 2013-02-28 | |||
| KR20120065636A | 2012-06-21 | |||
| CN108515263A | 2018-09-11 | |||
| KR101864923B1 | 2018-06-05 | |||
| KR20200103053A | 2020-09-01 |
Other References:
See also references of EP 4166268A4
Attorney, Agent or Firm:
PCR INTELLECTUAL PROPERTY LAW FIRM (KR)
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