Protective film for fuel cell membrane electrode and preparation method of protective film

A fuel cell membrane and protective film technology, which can be used in fuel cells, film/sheet adhesives, circuits, etc., can solve the problems of increased peel strength, increased production process and cost, and difficult to directly remove the protective film. , to achieve the effect of saving production processes and costs, and reducing the contact area
CN110117469AActive Publication Date: 2019-08-13SHENZHEN SHINING AUTOMATION CO LTD
8 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN SHINING AUTOMATION CO LTD
Publication Date
2019-08-13

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of fuel cells, in particular to a preparation method of a protective film for a fuel cell membrane electrode. The preparation method comprises the steps ofmixing glue, a solvent, a curing agent and microspheres according to a weight ratio of 100:100:1:(5-10), and uniformly stirring the mixture to prepare an adhesive; uniformly coating a base layer withthe prepared adhesive; heating the base layer to solidify the adhesive used for coating in order to form an adhesive layer with the microspheres; compounding a release film layer on the surface of the formed adhesive layer. The provided protective film is provided with the microspheres attached to the surface of the adhesive layer, and the microspheres form uneven contact points; when the membrane electrode is prepared, the protective film and a proton exchange membrane are in point contact with each other, so that the technical problem is effectively avoided that after baking, the protectivefilm is difficult to peel off or a catalyst with which the proton exchange membrane is coated is taken away when the protective film is peeled off. When the protective film is peeled off, there is noneed to perform viscosity reduction treatment in advance, so that the production processes are simplified and the cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of fuel cells, in particular to a method for preparing a protective film for fuel cell membrane electrodes. Background technique

[0002] Proton exchange membrane fuel cells have the advantages of low operating temperature, fast start-up, high specific power, simple structure, and convenient operation, and are recognized as the preferred energy source for electric vehicles and stationary power stations. Inside the fuel cell, the proton exchange membrane provides a channel for the migration and transport of protons, so that the protons pass through the membrane from the anode to the cathode, and form a circuit with the electron transfer of the external circuit to provide current to the outside world.

[0003] Membrane electrode assembly is the core component of proton exchange membrane fuel cell, and its cost accounts for one-third of the total cost. Currently, there are mainly three methods for the preparat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More