Method for manufacturing wave type collector plate of fuel cell

Abstract

The present invention provides a manufacturing technique for the wave type electric collecting plate used in a fuel battery. At first, providing an electric collecting layer with anti corrosion and oxidation resistance functions. The first surface of the electric collecting layer is coated with a shielding film. The second surface of the electric collecting layer is electrically plated with an electric conducting layer, and the electric conducting layer is covered with a dry film. The dry film defines the shape and dimension of the electric collecting plate. Then the electric conducting layer not covered by the dry film is etched. The dry film and the shield film are removed, and the second surface of the electric collecting layer is affixed with a protecting layer so as to protect the electric conducting layer. Thereafter, the cutting technique is carried out to form the electric collecting plate. Finally, the electric collecting plate is pressed into the wave shape to have the function of a flow passage.

Description

technical field [0001] The present invention relates to a method of manufacturing a collector plate integrated on a flow board in the field of fuel cells, in particular to a method with high methanol resistance, high mechanical strength, better fuel flow performance and low processing A cost-effective wave-type analog plate and a method for manufacturing a collector plate integrated on the analog plate. Background technique [0002] As known to those familiar with the field, a Direct Methanol Fuel Cell (DMFC for short) is a power generation device that uses dilute aqueous methanol as fuel to convert chemical energy into electricity through an electrochemical process. Compared with traditional power generation methods, direct methanol fuel cells have the advantages of low pollution, low noise, high energy density, and high energy conversion efficiency. Electrical systems, electronic products, means of transportation, military equipment, space industry, etc. [0003] The ope...

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Problems solved by technology

[0005] The known analog boards are usually made of graphite or glass fiber boards, such as FR4, FR5, and other materials, and are made by computerized numerical control (Computer Numerical Control, referred to as CNC) lathe milling technology. The disadvantage is that the production capacity of CNC lathe milling is low, and the processing cost is high, and it is known that the analog boards made of graphite, FR4 or FR5 as the base material generally have poor mechanical properties and large volume, which are not conducive to the capacity of fuel cells. Production scale and popular application

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