Title:
GRAPHITE MICROCRYSTALLINE CARBON COATING FOR METAL BIPOLAR PLATE OF FUEL CELL AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/019693
Kind Code:
A1
Abstract:
The present invention relates to a graphite microcrystalline carbon coating for a metal bipolar plate of a fuel cell and an application thereof. The coating is coated on the surface of the metal bipolar plate, the graphite microcrystalline carbon coating is a graphite-like coating, and the coating comprises 5-50 wt% of graphite microcrystalline, and has good compactness. On the basis of a conventional magnetron sputtering technology, the energy of a deposited particle is changed by means of methods such as changing the target sputtering power, sputtering magnetic field strength and coating deposition temperature, and then a structure of a carbon coating is changed, so that a carbon coating having high conductivity, corrosion resistance and stability is prepared. Compared with the prior art, the present invention can reduce the contact resistance between the metal bipolar plate of the fuel cell and a gas diffusion layer without increasing coating preparation costs, also improves the corrosion resistance of the carbon coating in an acidic environment of the fuel cell and the stability of the conductivity after long-time testing, and has important significance for promoting the commercialization process of the fuel cell.
Inventors:
PENG LINFA (CN)
LI XIAOBO (CN)
YI PEIYUN (CN)
QIU DIANKAI (CN)
LAI XINMIN (CN)
LI XIAOBO (CN)
YI PEIYUN (CN)
QIU DIANKAI (CN)
LAI XINMIN (CN)
Application Number:
PCT/CN2019/072825
Publication Date:
January 30, 2020
Filing Date:
January 23, 2019
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
H01M8/0213; H01M8/0206; H01M8/0228; C23C14/02; C23C14/06; C23C14/35
Foreign References:
| CN109037723A | 2018-12-18 | |||
| CN104716339A | 2015-06-17 | |||
| CN104716339A | 2015-06-17 | |||
| CN102054993A | 2011-05-11 | |||
| CN102723499A | 2012-10-10 | |||
| CN102569828A | 2012-07-11 |
Attorney, Agent or Firm:
SHANGHAI KESHENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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