A high-yield fuel cell catalytic electrode coating production method and equipment thereof

Abstract

The invention discloses a high-yield fuel cell catalytic electrode coating production method and equipment thereof. The method includes the following steps: S1. Add solid catalyst particles and perfluorosulfonic acid resin solution into deionized water and low-boiling alcohol A kind of solvent and slow drying agent, disperse and defoam to obtain catalyst slurry; S2, select the first preset process to apply to one side of the proton exchange membrane, and completely dry to form catalytic layer A; S3, apply catalyst slurry on on the support, and make it through multi-channel functionalized spraying treatment to form a support complex with a gel state layer; S4, hot-press the support complex with a gel state layer and the other side of the proton exchange membrane Transfer, transfer the gel state layer on the support complex to the other side of the proton exchange membrane to obtain a catalytic electrode; the membrane electrode of the present invention solves the swelling of the proton exchange membrane and the removal of the catalytic layer by means of hot pressure transfer during the preparation process. Problems such as falling, and the yield is high, and the electrochemical performance of the catalytic layer is excellent.

Description

technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to a production method for coating catalytic electrodes of fuel cells with high yield. Background technique [0002] A fuel cell is an electrochemical cell whose main principle is to convert the chemical energy in fuel and oxidant directly into electrical energy through oxidation-reduction reactions. As an important branch of the fuel cell field, the proton exchange membrane fuel cell (PEMFC) not only has the general characteristics of fuel cells such as high energy conversion efficiency and environmental friendliness, but also has fast start-up speed at room temperature, small size, no electrolyte loss, It has outstanding advantages such as easy drainage, long life, high specific power and specific energy. It is not only suitable for the construction of distributed power stations, but also suitable for mobile power supply. It is a new type of mobile power supply for military...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a production method for coating the catalytic electrode of a high-yield fuel cell. In the preparation process of the catalytic layer, problems such as swelling of the proton exchange membrane and falling of the catalytic layer are solved by means of transfer, and the catalytic layer is subjected to a A series of treatments make the catalytic layer not only have a high transfer rate, but also have excellent electrochemical performance

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