Title:
APPARATUS FOR MANUFACTURING POUCH OF SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/092719
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for manufacturing a pouch of a secondary battery, wherein higher pressure can be applied locally to a place requiring same when applying pressure for gripping a pouch base material in order to form the pouch, and thus the quality with which the pouch is formed can be improved by alleviating or removing wrinkles of the pouch without an overall increase in pressure. The apparatus for manufacturing a pouch of a secondary battery comprises: a lower die in which an accommodation groove for forming a cup portion of the pouch is defined in a base surface on which the pouch is placed; a punch which is inserted into the accommodation groove of the lower die to form the cup portion of the pouch; a stripper which is positioned above the lower die so as to face the lower die and provided to press a peripheral portion of the pouch from above, wherein the peripheral portion is positioned near the portion that is formed into the cup portion of the pouch by the punch; and a back plate coupled to the stripper and supporting the stripper. A protrusion block protruding toward the stripper is provided on a surface (S), facing the stripper, among the surfaces of the back plate.
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Inventors:
LEE CHUNG HEE (KR)
OH SE YOUNG (KR)
KIM GEUN HEE (KR)
OH SE YOUNG (KR)
KIM GEUN HEE (KR)
Application Number:
PCT/KR2021/014931
Publication Date:
May 05, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C51/26; B29C51/08; B29C51/20; B29C51/34; B29C51/42; H01M50/116; B29L31/00
Foreign References:
| KR20200061034A | 2020-06-02 | |||
| KR20190038094A | 2019-04-08 | |||
| KR101904094B1 | 2018-10-04 | |||
| KR20200054054A | 2020-05-19 | |||
| US8128859B2 | 2012-03-06 |
Other References:
See also references of EP 4238739A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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