Title:
APPARATUS FOR MANUFACTURING SECONDARY BATTERY POUCH
Document Type and Number:
WIPO Patent Application WO/2022/086113
Kind Code:
A1
Abstract:
The present invention relates to an apparatus for manufacturing a secondary battery pouch, the apparatus being capable of reducing or removing wrinkles in a pouch caused by uneven sucking of a pouch parent material when forming the pouch, without using an additional apparatus. The apparatus for manufacturing a secondary battery pouch, according to the present invention, comprises: a lower die in which an accommodation groove for forming a cup portion of a pouch is formed on a base surface on which a pouch is placed; a punch which is inserted in the accommodation groove of the lower die and forms the cup portion of the pouch; and a stripper which is provided to press the peripheral portion of the pouch from above, the peripheral portion of the pouch being located on the periphery of a portion formed into the cup portion of the pouch by punching, wherein the stripper and the lower die press and hold the peripheral portion from upper and lower sides, the punch is inserted in the accommodation groove and the cup portion of the pouch is formed while the peripheral portion of the pouch is held by the stripper and the lower die, and a frictional region that has surface roughness greater than the surrounding area is formed on a pressing surface, of the lower die or the stripper, pressing the peripheral portion of the pouch.
Inventors:
OH SE YOUNG (KR)
KIM GEUN HEE (KR)
LEE CHUNG HEE (KR)
KIM HYUN BEOM (KR)
KWON HYUNG HO (KR)
HA JEONG MIN (KR)
KIM GEUN HEE (KR)
LEE CHUNG HEE (KR)
KIM HYUN BEOM (KR)
KWON HYUNG HO (KR)
HA JEONG MIN (KR)
Application Number:
PCT/KR2021/014558
Publication Date:
April 28, 2022
Filing Date:
October 19, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C43/36; B29C43/02; B29C43/04; B29C43/32; B65B47/04; H01M50/116; B29L31/00
Foreign References:
| KR20190105765A | 2019-09-18 | |||
| KR20150087730A | 2015-07-30 | |||
| KR20200117177A | 2020-10-14 | |||
| KR20140019933A | 2014-02-18 | |||
| JP2002178096A | 2002-06-25 |
Other References:
See also references of EP 4234195A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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