Title:
METHOD FOR MANUFACTURING CYLINDRICAL BATTERY HAVING MULTIPLE TABS, AND CYLINDRICAL BATTERY MANUFACTURED USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/141895
Kind Code:
A1
Abstract:
In a method for manufacturing a cylindrical battery having multiple tabs, according to one embodiment of the present invention, the cylindrical battery comprises an electrode assembly, a plurality of electrode tabs of which each comprises a cylindrical pouch case and protrudes from the upper end of the electrode assembly, and an electrode lead welded and electrically connected to the electrode tab, and the method can comprise the steps of: arranging the plurality of electrode tabs on the electrode assembly so that the plurality of electrode tabs protrudes from the upper end of the electrode assembly; winding the electrode assembly so as to form the electrode assembly in a cylindrical shape; connecting the electrode lead to the plurality of electrode tabs arranged on the upper end of the electrode assembly; inserting the electrode assembly into the cylindrical pouch case so as to manufacture a battery cell; connecting, to the cylindrical pouch case, a gas collection part for collecting gas generated by the charging and discharging of the battery; and forming, in the cylindrical pouch case, a guide part for preventing deformation of the battery cell.
Inventors:
PARK HYOJIN (KR)
BAE JOON SUNG (KR)
BAE JOON SUNG (KR)
Application Number:
PCT/KR2020/000041
Publication Date:
July 09, 2020
Filing Date:
January 02, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/04; H01M50/105; H01M50/533; H01M50/536
Foreign References:
| JPH11312510A | 1999-11-09 | |||
| KR20160032590A | 2016-03-24 | |||
| KR20180031160A | 2018-03-28 | |||
| JPH1083805A | 1998-03-31 | |||
| KR20170132565A | 2017-12-04 |
Other References:
See also references of EP 3783714A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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