Laminating apparatus and method for membrane electrode assembly of fuel cell

Abstract

The invention discloses a laminating apparatus for a membrane electrode assembly of a fuel cell. The laminating apparatus comprises first and second conveying mechanisms respectively conveying two sets of composite membrane layer along different conveying paths, a laminating mechanism carrying out lamination on the two sets of composite membrane layer, an alignment detection mechanism used for alignment detection of laminated membrane layers and an aligning and adjusting unit, wherein the first and second conveying mechanisms are used for respectively conveying a first composite membrane layer and a second composite membrane layer having a plurality of die cutting frames corresponding to die cutting, the alignment detection mechanism is used for acquiring images of the die cutting frames of the membrane layers after lamination, and the aligning and adjusting unit calculates spacing values based on the images of the die cutting frames acquired by the alignment detection mechanism and correspondingly adjusts conveying of the second conveying mechanism so as to realize alignment and lamination of the two sets of composite membrane layer. The invention also discloses a corresponding laminating method. With the laminating apparatus and the laminating method provided by the invention, accurate lamination between two sealing plies of the membrane electrode assembly is realized, and the advantages of high precision in repeated positioning, convenient operation, stability, reliability and the like are obtained.

Description

technical field [0001] The invention belongs to the field of fuel cell technology, and more specifically relates to a lamination device and method for a fuel cell membrane electrode assembly. Background technique [0002] Fuel cell membrane electrode assembly (abbreviated as MEA, Membrane Electrode Assembly) is mainly composed of proton exchange membrane, sealing layer, catalyst layer and gas diffusion layer. It is the core component to realize the electrochemical reaction of proton exchange membrane fuel cell and determines the fuel cell performance. Among them, the proton exchange membrane (abbreviated as PEM, Proton Exchange Membrane) mainly provides a channel for proton transfer (from the anode to the cathode), and at the same time should prevent the reaction gases on both sides from crossing each other and short-circuiting between the cathode and the anode. Therefore, the PEM must not only have a good The gas barrier ability and the ability to conduct protons should al...

AI Technical Summary

Problems solved by technology

However, the main work of the current MEA manufacturing process is done by hand, which not only has low efficiency and high cost, but also produces poor product consistency, especially for multiple die-cuts in the sealing layer. Accurate positioning is not guaranteed between boxes

Correspondingly, this greatly limits the commercial application of fuel cells, and there is a strong technical demand for highly reliable, high-precision automated lamination processes and their corresponding lamination devices in the industry

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