Title:
POSITIVE ELECTRODE COMPOSITE ALUMINUM CURRENT COLLECTOR AND PREPARATION METHOD THEREFOR, AND ELECTROCHEMICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/086982
Kind Code:
A1
Abstract:
The present application provides a preparation method for a positive electrode composite aluminum current collector, comprising the following steps: providing a polymer substrate, the polymer substrate comprising a first surface and a second surface opposite to the first surface; placing the polymer substrate and metallic aluminum in a deposition chamber, and vacuumizing the deposition chamber; heating the metallic aluminum to vaporize the metallic aluminum to form aluminum vapor, and injecting plasma gas into the deposition chamber while the metallic aluminum is vaporized, such that the plasma gas crystallizes the aluminum vapor to form aluminum particles; and depositing the aluminum particles on the first surface and the second surface to obtain a first aluminum layer and a second aluminum layer, respectively, wherein the conductivity of the first aluminum layer and/or the conductivity of the second aluminum layer are isotropic. The positive electrode composite aluminum current collector prepared by the present application has relatively high safety. The present application further provides a positive electrode composite aluminum current collector and an electrochemical device.
Inventors:
WANG CHENGHAO (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2022/127088
Publication Date:
May 02, 2024
Filing Date:
October 24, 2022
Export Citation:
Assignee:
YANGZHOU NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
H01M4/66; C23C14/24; C23C14/48
Foreign References:
| CN115161600A | 2022-10-11 | |||
| CN112563512A | 2021-03-26 | |||
| CN114824160A | 2022-07-29 | |||
| CN111180741A | 2020-05-19 | |||
| CN115188926A | 2022-10-14 | |||
| JP2012059418A | 2012-03-22 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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