Title:
POUCH, APPARATUS FOR MOLDING POUCH, AND METHOD FOR MANUFACTURING SECONDARY BATTERY COMPRISING POUCH
Document Type and Number:
WIPO Patent Application WO/2021/261698
Kind Code:
A1
Abstract:
An apparatus for molding a pouch of the present invention manufactures a pouch including a first seating part and a second seating part connected to each other, wherein when an electrode assembly is mounted, the first seating part and the second seating part are folded to cover upper and lower side surfaces of the electrode assembly, and sealing parts of the first seating part and the second seating part are sealed in contact with each other. The apparatus for molding a pouch is characterized by comprising: a lower mold in which a first groove is formed in an upper surface thereof to a predetermined depth, and a second groove is additionally formed in the bottom surface of the first groove; and an upper mold in which a flat portion is formed on one surface entering the first groove, and a protrusion portion entering the second groove protrudes from the flat portion, wherein when the upper mold and the lower mold are compressed while a pouch sheet is placed between the upper mold and the lower mold, the first seating part and the second seating part are molded in a portion pressurized by the flat portion, and a side wall portion is molded so as to be formed in a portion pressurized by the protrusion portion, the side wall portion connecting between the first and second seating parts and forming a plane parallel to a side surface of the electrode assembly when the electrode assembly is mounted.
Inventors:
LEE HAN YOUNG (KR)
Application Number:
PCT/KR2021/000697
Publication Date:
December 30, 2021
Filing Date:
January 19, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B29C43/02; B29C43/16; B29C43/36; B29C53/04; B29C53/36; B29C53/38; B29C65/00; H01M50/116
Foreign References:
| KR20190096619A | 2019-08-20 | |||
| KR101467859B1 | 2014-12-03 | |||
| JP2004071301A | 2004-03-04 | |||
| KR20170002013A | 2017-01-06 | |||
| KR102109926B1 | 2020-05-12 |
Other References:
See also references of EP 4155045A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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