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Patent Searching and Data


Title:
HORN AND WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/153570
Kind Code:
A1
Abstract:
A horn according to an embodiment of the present invention for solving the problem comprises: multiple protrusion formation parts including multiple protrusions, which protrude from a welding surface and are linearly arranged in at least one row, wherein the multiple protrusion formation parts form pattern formation portions on electrode tabs of a secondary battery, respectively; and a protrusion non-formation part, which is disposed between the multiple protrusion formation parts, has no protrusions formed thereon to allow the welding surface to be exposed to the outside, and forms pattern non-formation portions on the electrode tabs, wherein the width of the protrusion non-formation part is wider than the widths of the protrusions.

Inventors:
PARK JUNG SU (KR)
AHN CHANG BUM (KR)
PARK IL HWAN (KR)
Application Number:
PCT/KR2019/012818
Publication Date:
July 30, 2020
Filing Date:
October 01, 2019
Export Citation:
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Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B23K20/10; B23K20/00; B23K26/21; B23K28/02; H01M50/533; H01M50/536; B23K101/38
Foreign References:
KR20140110353A2014-09-17
KR101522450B12015-05-21
JP2016052670A2016-04-14
JP4792945B22011-10-12
JP2017006940A2017-01-12
Other References:
See also references of EP 3895837A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
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