A fuel cell microporous layer continuous printing equipment and process

Abstract

The invention discloses a fuel cell microporous layer continuous printing equipment and printing process. The equipment includes a conveyor belt assembly, a printing processing area, a detection area, a brushing processing area, a secondary detection area, a non-conforming product marking area, and a mechanical arm sorting area , to realize the integrated intelligent operation process of printing, drying, testing, brushing, marking, and picking of the microporous layer, which improves work efficiency; At the same time, the metal support area composed of metal flakes can support the microporous layer during printing; the printing processing area and the brushing processing area are equipped with vacuum adsorption boxes with electromagnetic sheets, which can adsorb the metal support. Pre-positioning to ensure that there will be no shaking of the conveyor belt during the printing process and ensure the stability of the printing process.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell microporous layer continuous printing equipment and process. Background technique [0002] A proton exchange membrane fuel cell is a power generation device that directly converts the chemical energy present in fuel and oxidant into electrical energy. The membrane electrode is its core component. The membrane electrode is composed of a proton exchange membrane, a catalyst layer and a gas diffusion layer. The proton exchange The mass transfer process of reactant gas and liquid water in gas diffusion layer (GDL) of membrane fuel cell (PEMFC) is significantly affected by its structure and properties. The introduction of microporous layer (MPL) can improve the mass transfer in GDL, and the preparation of MPL Methods can significantly affect the structure and properties of MPL and GDL. [0003] The gas diffusion layer is mainly made of conductive carbon black slurry evenly coate...

AI Technical Summary

Problems solved by technology

This patent discloses the slurry preparation and coating method of the diffusion layer. Screen printing has the advantages of strong adhesion, soft layout, small printing pressure, and strong ink coverage. However, for the microporous layer of non-flexible paper, screen printing is used During the preparation, each piece of microporous layer needs to be positioned in the printing process with the help of auxiliary equipment such as a press plate, and the size of the screen printing itself is limited, so it can only be printed on a single piece of the microporous layer, so in the printing process needs Manual or manual replacement does not meet the continuous production process, which affects the production efficiency, which in turn leads to the inability of the screen printing process to be widely used in the commercialization of the gas diffusion layer

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