Title:
MEMBRANE ELECTRODE ASSEMBLY OF FUEL CELL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/086025
Kind Code:
A1
Abstract:
The present invention provides a membrane electrode assembly of a fuel cell, comprising a gas diffusion layer, a microporous layer, a catalytic layer, and an electrolyte membrane that are sequentially stacked. In the direction of an air flow path, the thickness of the microporous layer decreases progressively, the thickness of the catalytic layer increases progressively, and the total thickness of the microporous layer and the catalytic layer keeps consistent. The present application also provides a preparation method for the membrane electrode assembly of a fuel cell. The membrane electrode assembly of a fuel cell provided in the present application can balance water content of a gas inlet area and a gas outlet area of the fuel cell, and finally improves the stability of the fuel cell at different temperatures and humidity levels, thereby implementing functions such as improving the durability and decreasing a catalyst load.
Inventors:
WAN NIANFANG (CN)
DING SANSAN (CN)
ZHANG WENCHAO (CN)
LI KELEI (CN)
LI YANKUN (CN)
DING SANSAN (CN)
ZHANG WENCHAO (CN)
LI KELEI (CN)
LI YANKUN (CN)
Application Number:
PCT/CN2018/113915
Publication Date:
May 09, 2019
Filing Date:
November 05, 2018
Export Citation:
Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
H01M8/1004
Foreign References:
| CN207490022U | 2018-06-12 | |||
| CN107834088A | 2018-03-23 | |||
| JP2013225398A | 2013-10-31 | |||
| JP2009076423A | 2009-04-09 | |||
| US20090148752A1 | 2009-06-11 | |||
| JP2009129667A | 2009-06-11 | |||
| JP2005317492A | 2005-11-10 | |||
| CN201711078834A | 2017-11-06 | |||
| CN201721466595U | 2017-11-06 | |||
| CN201110293005A | 2011-09-30 | |||
| US8945790B2 | 2015-02-03 |
Other References:
See also references of EP 3709417A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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