Title:
NEGATIVE ELECTRODE, NEGATIVE ELECTRODE PRODUCTION METHOD AND SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2021/091278
Kind Code:
A1
Abstract:
The present invention relates to a negative electrode production method, a negative electrode and a secondary battery, the negative electrode production method comprising the steps of: forming a polymer layer on the rear surface of a current collector; forming a preliminary negative electrode active material layer on the front surface of the current collector; and forming a prelithiation layer comprising lithium on the preliminary negative electrode active material layer, wherein the polymer layer comprises a copolymer comprising a first unit represented by chemical formula 1, and at least one or more among a second unit represented by chemical formula 2 and a third unit represented by chemical formula 3.
Inventors:
HONG YEON SUK (KR)
YOUN SUK IL (KR)
KWON JOON (KR)
YOUN SUK IL (KR)
KWON JOON (KR)
Application Number:
PCT/KR2020/015449
Publication Date:
May 14, 2021
Filing Date:
November 06, 2020
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/13; H01M4/02; H01M4/04; H01M4/139; H01M4/36; H01M4/48; H01M4/587; H01M4/62; H01M4/66; H01M10/052
Foreign References:
| JP2018181705A | 2018-11-15 | |||
| KR20190121051A | 2019-10-25 | |||
| KR20190017149A | 2019-02-20 | |||
| KR20190046688A | 2019-05-07 |
Other References:
CHO HYUNWOO, KIM KYUNGSU, PARK CHEOL-MIN, JEONG GOOJIN: "Partially Carbonized Poly (Acrylic Acid) Grafted to Carboxymethyl Cellulose as an Advanced Binder for Si Anode in Li-ion Batteries", J. ELECTROCHEM. SCI. TECHNOL, vol. 10, no. 2, 1 January 2019 (2019-01-01), pages 131 - 138, XP055810370, DOI: 10.5229/JECST.2019.10.2.131
See also references of EP 4030501A4
See also references of EP 4030501A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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