Title:
CURRENT COLLECTOR COMPRISING ADHESION-REINFORCING LAYER, POSITIVE ELECTRODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING POSITIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2023/136665
Kind Code:
A1
Abstract:
The present invention relates to: a current collector comprising an adhesion-reinforcing layer capable of providing a positive electrode having excellent adhesion and low interfacial resistance; a positive electrode comprising same; and a lithium secondary battery comprising the positive electrode. Provided are: a current collector comprising a conductive metal layer, and an adhesion-reinforcing layer provided on at least one surface of the metal layer, wherein the adhesion-reinforcing layer has a surface roughness (Ra) of 90 nm to 600 nm and a diiodomethane contact angle of 70° to 120°; a positive electrode comprising same; and a lithium secondary battery comprising the positive electrode.
Inventors:
SEO JUNG HYUN (KR)
KIM MIN SOO (KR)
SHIN DONG OH (KR)
LEE HO CHAN (KR)
YOO KWANG HO (KR)
JUNG SOON HWA (KR)
KIM MIN SOO (KR)
SHIN DONG OH (KR)
LEE HO CHAN (KR)
YOO KWANG HO (KR)
JUNG SOON HWA (KR)
Application Number:
PCT/KR2023/000677
Publication Date:
July 20, 2023
Filing Date:
January 13, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
LG ENERGY SOLUTION LTD (KR)
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/66; C23C2/04; C23C2/12; H01M4/04; H01M4/13; H01M4/70; H01M10/052; H01M10/0525
Domestic Patent References:
| WO2020032471A1 | 2020-02-13 |
Foreign References:
| KR20180028814A | 2018-03-19 | |||
| KR20170056700A | 2017-05-23 | |||
| KR20190090545A | 2019-08-02 | |||
| JP2015095275A | 2015-05-18 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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