A kind of production method of ccm

Abstract

The application provides a production method of CCM, which belongs to the technical field of membrane electrode production. The production method includes: transferring a plurality of separated first catalyst sheets at intervals on the first supporting membrane being conveyed, and transferring the first catalyst sheets on the first supporting membrane being conveyed to the proton exchange membrane being conveyed of the first surface. Detect the position information of the two adjacent first catalyst sheets on the first support film, calculate the real-time distance between the two adjacent first catalyst sheets according to the position information, when the difference between the real-time distance and the preset distance When it is outside the preset range, the relative speed of the first supporting membrane and the proton exchange membrane is adjusted so that the difference between the real-time distance and the preset distance is within the preset range. This production method can adjust the distance between two adjacent catalyst sheets that are finally transferred to the same surface on the proton exchange membrane, so that the production of CCM can be more accurate.

Description

technical field [0001] The present application relates to the technical field of membrane electrode production, in particular, to a production method of CCM. Background technique [0002] The preparation method of CCM type membrane electrode includes transfer printing method and direct spray coating method, wherein the transfer printing method is to spray / print the slurry onto other media, and then transfer to the proton exchange membrane to form a catalytic layer. Among them, the schematic diagram of the structure of the catalytic membrane before the transfer is as follows: figure 1 As shown, a plurality of interval catalyst sheet layers 2 are set on the catalytic protective membrane 1 . [0003] At present, the process of preparing 3-CCM membrane electrodes by transfer printing is mainly to coat the cathode and anode catalytic coatings on the base medium intermittently, and then transfer them to the proton membrane, and coat the cathode and anode catalytic coatings on the...

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Problems solved by technology

[0003] At present, the process of preparing 3-CCM membrane electrodes by transfer printing is mainly to coat the cathode and anode catalytic coatings on the base medium intermittently, and then transfer them to the proton membrane, and coat the cathode and anode catalytic coatings on the base medium for detection. After printing, if the distance between two adjacent catalytic coatings is not uniform, after transfer printing, the distance between two adjacent catalytic coatings on the proton exchange membrane will be inconsistent

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