Title:
PUNCH PIN HOLE INSPECTION APPARATUS USING PUNCH AND DIE, AND PUNCH PIN HOLE INSPECTION METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/108196
Kind Code:
A1
Abstract:
The present invention relates to a punch pin hole inspection apparatus using a punch and a die, and a punch pin hole inspection method using same that when a laminate sheet is molded into a pouch-type battery case by using a punch and a die, are capable of immediately checking whether marring or damage, specifically a pinhole or a microcrack, is caused by the molding immediately after the molding operation by means of the punch is finished.
Inventors:
CHI HO JUNE (KR)
CHOI HANG JUNE (KR)
MOON JEONG OH (KR)
PARK JIN YONG (KR)
CHOI HANG JUNE (KR)
MOON JEONG OH (KR)
PARK JIN YONG (KR)
Application Number:
PCT/KR2021/015839
Publication Date:
May 27, 2022
Filing Date:
November 04, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C51/08; B29C43/36; B29C43/58; B29C51/14; B29C51/26; B29C51/46; H01M50/116; H01M50/124
Domestic Patent References:
| WO1999008853A1 | 1999-02-25 |
Foreign References:
| KR20180038765A | 2018-04-17 | |||
| KR20190083929A | 2019-07-15 | |||
| KR102104310B1 | 2020-04-24 | |||
| KR20160036435A | 2016-04-04 | |||
| JP2014209490A | 2014-11-06 | |||
| KR20200155805A | 2020-11-19 | |||
| KR20160130831A | 2016-11-14 | |||
| JP2016144824A | 2016-08-12 | |||
| JP2008264849A | 2008-11-06 |
Other References:
See also references of EP 4112271A4
Attorney, Agent or Firm:
MYUNGRYUN IP & LAW FIRM (KR)
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