Title:
DEVICE FOR PRE-LITHIATION OF NEGATIVE ELECTRODE AND METHOD FOR PRE-LITHIATION OF NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2022/039449
Kind Code:
A1
Abstract:
The present invention relates to a device and method for pre-lithiation of a negative electrode, the device for pre-lithiation comprising: a pre-lithiation reaction vessel which is sequentially divided into an impregnation section, a pre-litiation section, and an aging section, and which accommodates therein a pre-lithiation solution through which a negative electrode structure is moved; a negative electrode roll which is arranged outside the pre-lithiation solution, and in which the pre-movement negative electrode structure is wound; a lithium metal counter electrode which is arranged in the pre-lithiation solution of the pre-lithiation section, and which is arranged to be a preset distance apart from the negative electrode structure so as to face the negative electrode structure moving in the pre-lithiation solution; and a charging and discharging part connected to the negative electrode structure and the lithium metal counter electrode, wherein the lithium metal counter electrode has a slanted structure so that the distance between the counter electrode and the negative electrode structure continuously increases in the moving direction of the negative electrode structure.
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Inventors:
JEON SEO YOUNG (KR)
KIM YE RI (KR)
CHAE OH BYONG (KR)
HWANG SEUNG HAE (KR)
KIM YE RI (KR)
CHAE OH BYONG (KR)
HWANG SEUNG HAE (KR)
Application Number:
PCT/KR2021/010788
Publication Date:
February 24, 2022
Filing Date:
August 13, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/139; H01M4/02; H01M4/04; H01M10/052
Domestic Patent References:
| WO2007121549A1 | 2007-11-01 |
Foreign References:
| KR20200046944A | 2020-05-07 | |||
| JP2004137545A | 2004-05-13 | |||
| US9598789B2 | 2017-03-21 | |||
| CN105470465A | 2016-04-06 | |||
| KR20200105346A | 2020-09-07 |
Other References:
See also references of EP 4020627A4
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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