Title:
LOW-ENERGY CONSUMPTION METHOD FOR PREPARING COMPOSITE CURRENT COLLECTOR
Document Type and Number:
WIPO Patent Application WO/2023/142321
Kind Code:
A1
Abstract:
The present invention relates to the technical field of new materials, in particular to a low-energy consumption method for preparing a composite current collector. In the present invention, by using certain parts by mass of copper hydroxyphosphate, copper dichromate and a high molecular polymer as a surface layer raw material of a composite current collector base material, for a composite current collector base material prepared by co-extrusion with a core layer material, under the irradiation of ultraviolet light, divalent copper ions in part of the copper hydroxyphosphate and copper dichromate are reduced to elemental copper, and a nano-copper layer is grown; and another part of the copper hydroxyphosphate and copper dichromate is activated, and seed crystals that are catalytically active for electroless copper plating are formed. The nano-copper layer and the seed crystals cooperate and can achieve the square resistance required by electroless plating or electroplating, replacing a physical vapor deposition step for preparing a composite current collector in the traditional technology, thus effectively reducing energy consumption and production costs, and improving production efficiency. Moreover, ultraviolet light treatment does not cause damage to the high molecular material, and does not affect the physical strength and performance thereof, thereby also improving the product yield rate.
Inventors:
LU JIANDONG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2022/094833
Publication Date:
August 03, 2023
Filing Date:
May 25, 2022
Export Citation:
Assignee:
JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
C23C18/20; C08K3/22; C08K3/32; C08L67/02; C23C18/38; H01M4/66
Foreign References:
| CN108832134A | 2018-11-16 | |||
| CN110312751A | 2019-10-08 | |||
| CN110943228A | 2020-03-31 | |||
| US20070246249A1 | 2007-10-25 | |||
| KR20170098114A | 2017-08-29 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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