METHOD OF PRODUCING COMPOSITE HYDROCARBON MEMBRANE AND MEMBRANE-ELECTRODE UNIT BASED THEREON FOR FUEL CELL Russian patent published in 2024 - IPC H01M8/1004 H01M8/1018 H01M8/1069

Abstract RU 2829861 C1

FIELD: electrochemical current sources.

SUBSTANCE: invention relates to a membrane-electrode unit (MEU) for a fuel cell based on a proton-exchange membrane (PEMFC) and a method for manufacturing thereof. Method of making such a composite membrane consists in preliminary exposure of the hydrocarbon membrane in water, application of a fluorine-containing ionomer coating on its surface and subsequent drying.

EFFECT: creation of composite membrane based on hydrocarbon polymer, characterized by high chemical resistance and durability (residual weight loss when holding membrane in Fenton reagent is less than 7%), low moisture absorption (less than 60%), swelling (less than 15%) and gas permeability (leakage current less than 2 mA/cm²).

8 cl, 9 dwg, 5 tbl, 25 ex

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RU 2 829 861 C1

Authors

Zavorotnaya Ulyana Maksimovna

Ponomarev Igor Igorevich

Sinitsyn Vitalij Vitalevich

Dates

2024-11-07—Published

2024-03-07—Filed