Title:
SEALING DEVICE FOR POUCH-TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POUCH-TYPE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/256658
Kind Code:
A1
Abstract:
The present invention relates to a sealing device for a pouch-type secondary battery and a method for manufacturing a pouch-type secondary battery with which, when forming a sealing part in the case of a pouch-type secondary battery by irradiating the sealing part with overlapping infrared lasers, the sealing force is improved, there is no wrinkling, and the sealing time is reduced.
Inventors:
BAEK JU HWAN (KR)
LEE SEUNG BAE (KR)
OH JUNG SU (KR)
LEE SEUNG BAE (KR)
OH JUNG SU (KR)
Application Number:
PCT/KR2021/001969
Publication Date:
December 23, 2021
Filing Date:
February 16, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C65/14; B29C65/00; B32B15/20; H01M50/116; H01M50/124; B29L31/00
Foreign References:
| US20200020907A1 | 2020-01-16 | |||
| KR101724141B1 | 2017-04-07 | |||
| KR20140104152A | 2014-08-28 | |||
| KR20140055427A | 2014-05-09 | |||
| KR20160141864A | 2016-12-09 | |||
| KR20200074202A | 2020-06-24 | |||
| KR20120056316A | 2012-06-04 |
Other References:
See also references of EP 4086065A4
Attorney, Agent or Firm:
MYUNGRYUN IP & LAW FIRM (KR)
Download PDF: