Fuel cell membrane electrode sealing assembly, encapsulation process and equipment for continuous encapsulation

Abstract

The invention discloses a fuel cell membrane electrode sealing assembly, the area of ​​the diffusion layer is larger than the area of ​​the through slot of the sealing frame, and the catalytic electrode layer and the sealing frame are provided with limiting through holes, so as to realize the five-in-one layer-by-layer superposition Preliminary limit; also discloses a packaging process of the membrane electrode sealing assembly, which uses a clamp to realize the continuous transportation of the membrane electrode sealing assembly, and combines the packaging process of welding to solve the problem of the membrane electrode sealing assembly commonly used in the prior art. Misalignment, looseness, and other undesirable phenomena occur during the handling of the electrode sealing assembly; a continuous packaging equipment is also disclosed, including the assembly line, welding line, and cooling line of the membrane electrode sealing assembly, which are all completed in one step during the conveying process of the conveyor belt, so that The continuous packaging of the membrane electrode is realized, and the problem that the existing membrane electrode sealing assembly cannot be continuously packaged is solved.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a fuel cell membrane electrode sealing assembly, packaging technology and equipment for continuous packaging. Background technique [0002] At present, the development of the fuel cell industry is uneven. There is a certain gap between the technical level and production level between my country and developed countries, and the model and size of fuel cell stacks cannot be unified. On this basis, the membrane electrodes processed and produced by related companies or research institutions are generally characterized by complex sizes, small quantities, and most of them need to be customized exclusively. Therefore, some designs for large-scale and standardized production cannot be well implemented. [0003] Membrane electrode assemblies, or MEA (Membrane Electrode Assemblies), are the core components of hydrogen fuel cells, which are composed of the catalytic electrode layer of the hydrogen ...

AI Technical Summary

Problems solved by technology

[0007] In the existing hot pressing forming process for the production of fuel cell membrane electrodes, there are problems of poor hot pressing quality and low hot pressing accuracy

Among them, most of the existing hot-pressing operations are one-time molding, which is prone to uneven pressure or excessive pressure, and the glue is prone to sticking during the curing process; and it cannot ensure that the parts to be hot-pressed are easy to take and place At the same time, there will be no deviation during the hot pressing process, and the way of using the upper and lower pressing plates to stick white cardboard to carry out flat hot pressing on the membrane electrode assembly cannot ensure that the air bubbles in the membrane electrode assembly are completely removed. Morphology of MEA during flat and hot pressing

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