Title:
UNIT CELL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/171376
Kind Code:
A1
Abstract:
A unit cell of the present invention comprises: a separator; a cathode in which a cathode active material is applied to the surface of a cathode current collector and the cathode active material is stacked so as to make contact with one surface of the separator; and an anode in which an anode active material is applied to the surface of an anode current collector and the anode active material is stacked so as to make contact with the other surface of the separator, wherein the anode, the separator, and the cathode, in a stacked state, are folded in a zigzag manner so as to form a plurality of wrinkles. A method for manufacturing a unit cell, according to the present invention, comprises the steps of: applying a cathode active material to the surface of a cathode current collector; applying an anode active material to the surface of an anode current collector; stacking an anode, a separator, and a cathode so that the cathode active material makes contact with one surface of the separator and the anode active material makes contact with the other surface of the separator; and folding the anode, the separator, and the cathode, in a stacked state, so as to form wrinkles.
Inventors:
KWON JOON (KR)
Application Number:
PCT/KR2020/000167
Publication Date:
August 27, 2020
Filing Date:
January 06, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/0583; H01M4/139; H01M10/04; H01M10/052; H01M50/531
Foreign References:
| KR20150040454A | 2015-04-15 | |||
| US4761352A | 1988-08-02 | |||
| KR20110064023A | 2011-06-15 | |||
| KR20170006633A | 2017-01-18 | |||
| KR20180106408A | 2018-10-01 |
Other References:
See also references of EP 3780237A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
Download PDF: