Batch production method of membrane electrode and manufacturing mould therefor

A mass production, membrane electrode technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of reduced electrochemical active area, difficult assembly, waste of catalysts, etc., to shorten the time of hot pressing, reduce repetitive labor, The effect of improving the yield
CN101969129AActive Publication Date: 2011-02-09江西德合医疗器械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江西德合医疗器械有限公司
Publication Date
2011-02-09

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Abstract

The invention provides a batch production method of a membrane electrode, which can carry out batch production. The batch production method is characterized by comprising the following steps: (1) preparing an anode gas diffusion layer and a cathode gas diffusion layer which are of the same area; (2) coating a catalytic layer to form an anode gas diffusion electrode and a cathode gas diffusion electrode; (3) clipping the anode gas diffusion electrode and the cathode gas diffusion electrode into small pieces of gas diffusion electrodes of the same dimension and quantity; (4) respectively placing the small pieces of anode gas diffusion electrodes and the small pieces of cathode gas diffusion electrodes in upper ledge openings and lower ledge openings of a hot-pressing mould frame and tiling a proton exchange membrane between the upper edges and the lower edges; (5) placing the whole hot-pressing mould into a hot press to prepare a conjoined membrane electrode structure; and (6) separating the conjoined membrane electrode structure from the middle position of the proton exchange membrane of an adjacent single membrane electrode.
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Description

technical field

[0001] The invention relates to the technical field of membrane electrode production, in particular to a batch production method of membrane electrodes. Background technique

[0002] The membrane electrode structure consists of five parts: the middle solid proton exchange membrane, the anode catalyst layer and the cathode catalyst layer on both sides of the proton exchange membrane, and the outermost anode gas diffusion layer and cathode gas diffusion layer, that is, the catalyst layer is always placed on the proton Between the exchange membrane and the gas diffusion layer on the same side.

[0003] Based on the above structure of the membrane electrode, there are generally two methods for its preparation:

[0004] The first is the process of coating the catalyst on the membrane and then hot pressing: that is, first coat the anode catalytic layer and the cathode catalytic layer on both sides of a proton exchange membrane, and then prepare an anode gas di...

Claims

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