Membrane electrode assembly for electrochemical hydrogen compressor and preparation method of membrane electrode assembly

By forming a porous interface on the proton exchange membrane using a sandwich structure and magnetron sputtering process, the problem of excessively high or low platinum catalyst loading is solved, realizing efficient hydrogen compression and low-cost electrochemical hydrogen compressor.

CN121839713APending Publication Date: 2026-04-10ANHUI CHERY GREEN ENERGY ECOLOGICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202610066886.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-19
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing electrochemical hydrogen compressors, excessive platinum catalyst loading leads to high costs, while insufficient loading affects the performance of the anode and cathode. It is necessary to maintain excellent performance while reducing costs.

Method used

The design employs a sandwich structure consisting of a proton exchange membrane, a slurry layer, a catalyst layer, and another slurry layer, combined with magnetron sputtering technology to form a porous interface structure. This reduces catalyst loss and maintains high efficiency even at low loading levels.

Benefits of technology

While reducing the amount of catalyst used, it improved the hydrogen compression reaction rate and energy conversion efficiency, reduced the overall preparation and maintenance costs, and extended the service life of the membrane electrode assembly.

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Abstract

The invention discloses a membrane electrode assembly for an electrochemical hydrogen compressor and a preparation method of the membrane electrode assembly. The membrane electrode assembly comprises a proton exchange membrane, and a slurry layer, a catalyst layer and a slurry layer are sequentially stacked on the surface of the proton exchange membrane; through the sandwich type structural design of the proton exchange membrane, the slurry layer, the catalyst layer and the slurry layer, falling and loss of catalyst particles in the reaction process are reduced, continuous and efficient utilization of a catalyst is guaranteed, more attachment sites are provided for the magnetron sputtering catalyst particles through the rough slurry layer surface, and the reaction efficiency is improved. The catalyst can be uniformly distributed at high density, the problem that catalyst particles are easily agglomerated on a smooth surface is avoided, and finally, excellent performance can still be kept under the condition of relatively low catalyst loading amount.
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