Method for forming electrode of pefc-type fuel cell, and fuel cell
A fuel cell and electrolyte membrane electrode technology, which is applied to fuel cell components, fuel cells, battery electrodes, etc., can solve solvent damage and other problems, achieve low interface resistance, improve adhesion, and improve adhesion Effect
Active Publication Date: 2019-08-06
MTEK SMART
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Problems solved by technology
Therefore, it is not difficult to imagine that until between the dry areas, even if there is adsorption of a powerful vacuum pump for suppressing the wetting and deformation of the electrolyte membrane caused by the solvent (a mixed solvent of water and alcohol), the solvent will appear at the interface of the electrolyte membrane. damage caused
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[0044] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the following embodiment is only an example for easy understanding of invention, and addition, substitution, deformation|transformation etc. which can be implemented by those skilled in the art are not excluded in the range which does not deviate from the technical idea of this invention.
[0045] The drawings schematically show preferred embodiments of the invention.
[0046] exist figure 1 In this case, a reinforcing tape 3 is attached to the electrolyte membrane 1 provided with the back plate 2 . The material of the reinforcing tape is not particularly limited as long as it withstands heat and a solvent atmosphere and does not leave residue when peeled off.
[0047] figure 2 is in figure 1 In the structure of , the first electrode 4 is formed by applying the first electrode ink to the electrolytic membrane at a position other than the rein...
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The issue of the invention is to manufacture a membrane electrode assembly in which an electrolyte solution and a catalyst are carried in an electrolyte membrane that is thin and deforms even in air,the membrane electrode assembly being manufactured by applying an electrode ink composed of carbon and water, or water and an alcohol-based material. A reinforcing tape is provided on both ends of anelectrode ink-coated surface of an electrolyte membrane to which a back sheet is attached, thereby forming a first electrode. Since the reinforcing tape is attached to both sides of an electrolyte membrane even if the back sheet of the electrolyte membrane is peeled off so as to form the opposite polarity, a strong suction is achieved by interposing an air-permeable substrate between a heating andadsorbing roll and the reinforcing tape, and therefore, the electrolyte membrane does not deform even when electrode ink is applied to form a second electrode. Also, since an adhesive can be provided, instead of the reinforcing tape, on both sides of the air-permeable substrate, and uncoated portions of both sides of the electrolyte membrane can be laminated, a more improved effect can be achieved.
Description
technical field [0001] The invention relates to a method for forming an electrode of a PEFC (Polymer Electrolyte membrane Fuel Cell, polymer electrolyte membrane fuel cell) type fuel cell and a fuel cell manufactured by the method. [0002] More specifically, it relates to a CCM (Catalyst coated membrane, catalyst-coated membrane) type electrolyte membrane and an electrode forming method. Coating in the present invention is not particularly limited, and includes roll coating, die coating, screen printing, curtain coating, compounding, inkjet, application of atomization (including fiberization) including spray coating, application of electrostatic atomization (including fiberization) etc. The method of coating particles and fibers on the object to be coated also includes applying a micro screen. [0003] When the micro-curtain is spraying liquid with a large-angle shape inflatable nozzle or the like at a relatively low pressure of about 0.3MPa, the method of traversing the obj...
Claims
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IPC IPC(8): H01M8/1004H01M4/88B05D7/00B05D7/24C09D11/52
CPCH01M4/88H01M8/02H01M8/10H01M8/1004B05D7/00B05D7/24C09D11/52
Inventor 松永正文
Owner MTEK SMART