Title:
POUCH-TYPE BATTERY CELL AND POUCH-TYPE BATTERY CASE SEALING DEVICE FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/019485
Kind Code:
A1
Abstract:
The present invention relates to a pouch-type battery cell comprising: a pouch-type battery case including a laminated sheet including a resin layer and a metal layer; and an electrode assembly accommodated in the battery case, wherein sealing portions sealed by thermal fusion are formed around the outer periphery of an electrode assembly accommodation portion, the sealing portions are formed such that pressurizing portions and non-pressurizing portions are repeatedly arranged from the inside to the outside of the pouch-type battery case, and the thickness of the internal resin layer in the pressurizing portion decreases toward the outside of the pouch-type battery case, thereby allowing the sealing portions of the pouch-type battery case to be sequentially vented due to the difference in sealing force of the sealing portions.
Inventors:
SEO TAI JOON (KR)
PARK LAE SEO (KR)
PARK LAE SEO (KR)
Application Number:
PCT/KR2023/010311
Publication Date:
January 25, 2024
Filing Date:
July 18, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/342; B29C65/00; H01M50/119; H01M50/121; H01M50/124; H01M50/133; H01M50/184; H01M50/367
Foreign References:
| KR20160133041A | 2016-11-22 | |||
| KR20170055439A | 2017-05-19 | |||
| US20180342710A1 | 2018-11-29 | |||
| KR20160077880A | 2016-07-04 | |||
| KR20220065707A | 2022-05-20 |
Attorney, Agent or Firm:
MYUNGRYUN IP & LAW FIRM (KR)
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