Fitting device and method for single-frame membrane electrode assembly of fuel cell

Abstract

The invention belongs to the technical field of fuel cells, and particularly relates to a fuel cell single-frame membrane electrode assembly laminating device and method. The device comprises a frame positioning assembly and a proton exchange membrane positioning assembly, a bottom membrane is fixed on the frame positioning assembly, and a boundary structure is arranged on the proton exchange membrane positioning assembly. The method comprises the following steps: positioning a bottom film according to a boundary structure, and transferring and adhering the bottom film to a frame positioning assembly; a frame is taken and placed on the frame positioning assembly with the adhesive face of the pressure-sensitive adhesive facing upwards, and the pressure-sensitive adhesive on the frame is positioned through a bottom film; placing the proton exchange membrane on the proton exchange membrane positioning assembly, and positioning the proton exchange membrane by using the boundary structure; the proton exchange membrane positioning assembly and the frame positioning assembly are closed, and the frame is attached to the proton exchange membrane. The invention provides the fuel cell single-frame membrane electrode assembly laminating device and method which are accurate in positioning, better in sealing effect and simple in preparation process.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a bonding device and method for a fuel cell single frame membrane electrode assembly. Background technique [0002] Proton exchange membrane fuel cell is a power generation device that uses the electrochemical reaction of hydrogen and oxidant (usually air) to directly convert electrical energy. Because of its high energy conversion efficiency, clean and pollution-free product water, etc. broad. The membrane electrode assembly (MEA) is the core component of the fuel cell, which is mainly composed of proton exchange membrane, catalyst layer, frame and gas diffusion layer. As the core component of the fuel cell, it determines the performance of the fuel cell. During the working process of the fuel cell, the proton exchange membrane needs to effectively block the fuel and the oxidant, so as to prevent the degradation of battery performance and the attenuation of life...

AI Technical Summary

Problems solved by technology

[0004] The traditional positioning method is through machining or scribing. Due to the tolerance of machining or scribing itself, it cannot be used as a reference for positioning and cannot maintain the consistency of accuracy. Therefore, it is necessary to develop an accurate positioning and better sealing effect. And the device with simple preparation process has become the focus of this field

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