Title:
CATHODE CURRENT COLLECTOR COATED WITH ADHESION-PROMOTING LAYER, MANUFACTURING METHOD THEREFOR, LITHIUM SECONDARY BATTERY CATHODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/080516
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing a cathode current collector coated with an adhesion-promoting layer, comprising the steps of: (S1) preparing an aqueous slurry in which a hydrocarbon-based water-soluble binder polymer is dissolved and polyvinylidene fluoride-based polymer particles and a first conductive material are dispersed; and (S2) coating at least one surface of a metal current collector with the aqueous slurry, and drying by heat treating same at a temperature higher than the melting point of the polyvinylidene fluoride-based polymer particles, thereby forming an adhesion-promoting layer.
Inventors:
KIM MIN-SOO (KR)
SEO JUNG-HYUN (KR)
JUNG SOON-HWA (KR)
SEO JUNG-HYUN (KR)
JUNG SOON-HWA (KR)
Application Number:
PCT/KR2022/016298
Publication Date:
May 11, 2023
Filing Date:
October 24, 2022
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/66; H01M4/02; H01M4/13; H01M4/136; H01M4/139; H01M4/1397; H01M4/58; H01M4/62; H01M10/052
Foreign References:
| JP2018190527A | 2018-11-29 | |||
| KR20200117007A | 2020-10-13 | |||
| KR20010095626A | 2001-11-07 | |||
| KR20160041299A | 2016-04-18 | |||
| KR20140134541A | 2014-11-24 | |||
| KR101705129B1 | 2017-02-13 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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