Title:
PREPARATION METHOD FOR GRAPHENE/COPPER COMPOSITE MATERIAL COMBINING PHYSICAL VAPOR DEPOSITION AND CHEMICAL VAPOR DEPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/216407
Kind Code:
A1
Abstract:
A preparation method for a graphene/copper composite material combining physical vapor deposition (PVD) and chemical vapor deposition (CVD). According to the method, a layer of graphene material is deposited on the surface of a copper foil by means of CVD, a layer of copper material is deposited on the surface of the graphene material by means of PVD, and CVD is re-performed on the surface of the deposited copper material to deposit a graphene material, such that a graphene/copper composite material having a multi-layer structure is prepared by means of repeated deposition. The material is compounded by using two materials of pure copper and graphene; the tensile strength of the composite material is greater than or equal to 200 MPa, and is at the same level as that of pure copper; the conductivity of the composite material is greater than or equal to that of 110% IACS, and compared with the conductivity of pure copper, is increased by 10% or above; and compared with the skin depth of pure copper, the skin depth is increased by 30%. The material can replace a traditional copper material or silver material, is applied to a supercapacitor or a motor driving apparatus, and has the effects of improving the efficiency, reducing the temperature rise, and the like.
Inventors:
LIANG JUNCAI (CN)
ZHANG XIAOHUI (CN)
LI MINGGAO (CN)
PEI ZHONGZHENG (CN)
LIU BAISHAN (CN)
WANG YALUN (CN)
CHEN CHAOZHONG (CN)
SUN MEIYU (CN)
ZHANG XIAOHUI (CN)
LI MINGGAO (CN)
PEI ZHONGZHENG (CN)
LIU BAISHAN (CN)
WANG YALUN (CN)
CHEN CHAOZHONG (CN)
SUN MEIYU (CN)
Application Number:
PCT/CN2022/104603
Publication Date:
November 16, 2023
Filing Date:
July 08, 2022
Export Citation:
Assignee:
CRRC INDUSTRIAL INSTITUTE CORPORATION LTD (CN)
International Classes:
C23C28/00; C23C14/16; C23C16/26
Foreign References:
| CN105984179A | 2016-10-05 | |||
| CN112962099A | 2021-06-15 | |||
| US20200294684A1 | 2020-09-17 | |||
| US20180102197A1 | 2018-04-12 | |||
| JP2020531408A | 2020-11-05 | |||
| CN106584976A | 2017-04-26 | |||
| US20130316167A1 | 2013-11-28 | |||
| US20180100233A1 | 2018-04-12 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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