Title:
POUCH-TYPE BATTERY CELL MANUFACTURING METHOD INCLUDING SECONDARY SEALING AND POUCH-TYPE BATTERY CELL MANUFACTURED THEREBY
Document Type and Number:
WIPO Patent Application WO/2022/103194
Kind Code:
A1
Abstract:
The present invention relates to a pouch-type battery cell manufacturing method comprising the steps of: accommodating an electrode assembly in a battery case formed of a lamination sheet; primarily sealing the outer circumferential edge of the battery case; and secondary sealing at least a portion of the primarily sealed outer circumferential edge, wherein the portion having passed through both the primary sealing and the secondary sealing is formed to have weak sealing strength, and accordingly can induce the venting position and venting timing of a pouch-type battery cell.
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Inventors:
KIM MIN JUNG (KR)
SEO TAI JOON (KR)
LEE WOO YONG (KR)
SEO TAI JOON (KR)
LEE WOO YONG (KR)
Application Number:
PCT/KR2021/016521
Publication Date:
May 19, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/116; H01M50/124
Domestic Patent References:
| WO2018163636A1 | 2018-09-13 |
Foreign References:
| KR101471765B1 | 2014-12-10 | |||
| JP5463212B2 | 2014-04-09 | |||
| JP2016126826A | 2016-07-11 | |||
| JP2000100399A | 2000-04-07 | |||
| KR20200152143A | 2020-11-13 | |||
| KR20210155191A | 2021-12-22 | |||
| JP5463212B2 | 2014-04-09 | |||
| JP2000100399A | 2000-04-07 | |||
| KR100889765B1 | 2009-03-24 | |||
| KR101520152B1 | 2015-05-13 | |||
| KR101883527B1 | 2018-07-30 | |||
| KR101471765B1 | 2014-12-10 |
Attorney, Agent or Firm:
MYUNGRYUN IP & LAW FIRM (KR)
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