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Patent Searching and Data


Title:
CONTACT JIG FOR SECONDARY BATTERY TAB LASER WELDING, AND WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/080207
Kind Code:
A1
Abstract:
The present invention relates to a contact jig for secondary battery tab laser welding and a welding method, the contact jig comprising an upper contact jig comprising an annular spray unit, capable of surface spraying, in order to inhibit the deterioration of welding quality, resulting from reaction with hydrogen or oxygen in the air during laser welding for forming an electrode terminal, and the occurrence of a short circuit, resulting from the deposition of spatter generated during welding.

Inventors:
KO MYOUNG JIN (KR)
PARK DONG HYEUK (KR)
LEE HYO JIN (KR)
JO SUNG JUN (KR)
KIM GIL WOO (KR)
Application Number:
PCT/KR2020/013198
Publication Date:
April 29, 2021
Filing Date:
September 28, 2020
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B23K26/21; B23K37/04; B23K101/38
Foreign References:
KR20180112616A2018-10-12
JP2005254328A2005-09-22
JP2002028796A2002-01-29
CN101712103A2010-05-26
JPH06304777A1994-11-01
KR20190131954A2019-11-27
JP2002164037A2002-06-07
JPH06304777A1994-11-01
JP2001150169A2001-06-05
JP2016018756A2016-02-01
Other References:
See also references of EP 3974099A4
Attorney, Agent or Firm:
MYUNGRYUN IP & LAW FIRM (KR)
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