NON-UNIFORM MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL

WIPO Patent Application WO/2024/017014

A1

Disclosed in the present description are a non-uniform membrane electrode assembly for a fuel cell and a fuel cell. The non-uniform membrane electrode assembly comprises a proton exchange membrane-based membrane electrode and catalyst layers located on surfaces of two sides of the proton exchange membrane-based membrane electrode, and the catalyst layer on the surface of at least one side is divided into a flow channel catalyst region and a rib plate catalyst region. The flow channel catalyst region and the rib plate catalyst region respectively correspond to a flow channel position of and a rib plate position of the membrane electrode assembly, the interior of the flow channel catalyst region is provided with a catalyst layer, and the interior of the rib plate catalyst region is not provided with a catalyst layer or the catalyst loading amount of a catalyst layer arranged in the rib plate catalyst region is smaller than that of the catalyst layer of the flow channel catalyst region. Compared with a membrane electrode having a uniform catalyst loading amount and a uniform thickness, a non-uniform membrane electrode can obtain higher current density, and the current density can be improved by up to 30%, which is remarkably beneficial to the improvement of the power density of a fuel cell.

JP2000133283	SOLID POLYMER FUEL CELL AND ITS SYSTEM
JP6295630	Biofuel cell
JP6729664	Fuel cell

HUANG JIASI (CN)
XU DA (CN)

PCT/CN2023/104470

January 25, 2024

June 30, 2023

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WUXI HUAQING ENERGY CO LTD (CN)

H01M4/86

CN215008293U	2021-12-03
CN1875514A	2006-12-06
CN106099122A	2016-11-09
JP2005317492A	2005-11-10

BEYOND ATTORNEYS AT LAW (CN)

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