Title:
GAS DIFFUSION LAYER, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF, AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2022/222220
Kind Code:
A1
Abstract:
Disclosed in the present invention are a gas diffusion layer, a preparation method therefor and an application thereof, and a fuel cell. The gas diffusion layer comprises a base layer and a microporous layer, and the microporous layer is supported on the base layer; the gas diffusion layer comprises a wetting portion; the wetting portion comprises a plurality of wetting modules arranged at intervals; the arrangement track of the wetting modules corresponds to the flow channel of a fuel cell bipolar plate, and each wetting module is loaded with a wetting reagent; and the wetting reagent permeates the base layer and the microporous layer, so that water on the surface of the microporous layer directly enters the flow channel by means of the wetting portion. The liquid water breakthrough pressure of the gas diffusion layer provided by the present invention is greatly reduced, so that water generated by a catalytic layer can be rapidly discharged from the gas diffusion layer, the possibility of submersion in water is reduced, and the peak power density of the fuel cell is improved; and moreover, the preparation method is simple, low in cost, and easy to industrialize.
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Inventors:
JIANG HAIBO (CN)
LI CHUNZHONG (CN)
ZHANG WENHUI (CN)
CHEN AIPING (CN)
ZHOU YINGJIE (CN)
LU JIYUAN (CN)
BI LIYUAN (CN)
LI CHUNZHONG (CN)
ZHANG WENHUI (CN)
CHEN AIPING (CN)
ZHOU YINGJIE (CN)
LU JIYUAN (CN)
BI LIYUAN (CN)
Application Number:
PCT/CN2021/095937
Publication Date:
October 27, 2022
Filing Date:
May 26, 2021
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
H01M4/86; H01M4/88; H01M8/0247; H01M8/0258; H01M8/1004
Foreign References:
| CN111029605A | 2020-04-17 | |||
| JP2010061966A | 2010-03-18 | |||
| CN111129507A | 2020-05-08 | |||
| JP2009272163A | 2009-11-19 | |||
| CN110614742A | 2019-12-27 | |||
| CN101800320A | 2010-08-11 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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