Method for manufacturing thin type tabulate fuel cell and plate electrode

Abstract

The tabulate direct methanol fuel cell includes following parts: (1) integration type cathodic pole plate includes multiple regions of cathodic poles, which are formed on positive and negative faces through electroplating; multiple perforations are densely covered on two faces; being setup out of the regions of cathodic poles, first conducting perforation is connected to the regions of cathodic poles through lead wire; (2) multiple pieces of proton exchange membrane are configured relevant to multiple regions of cathodic poles; (3) middle contact layer includes multiple openings in use for holding multiple pieces of proton exchange membrane, and multiple second conducting perforations configured relevant to first conducting perforation; integrated anode plate includes multiple regions of anode poles, and multiple third conducting contacts; (4) bottom board of fluid channel. Protective layer in graphite state covers integrated multiple regions of cathodic poles and anode poles.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a thin flat direct methanol fuel cell structure and a manufacturing method thereof. Background technique [0002] Direct Methanol Fuel Cell (DMFC) is a power generation device that uses liquid dilute methanol aqueous solution 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. Products, vehicles, military equipment, space industry, etc. [0003] The operating principle of the direct methanol fuel cell is to carry out an oxidation reaction on the anode catalyst layer with methanol aqueous solution to generate hydrogen ions (H + ), electronics (e - ) and carbon dioxide (CO 2 ), wherein the hydrogen ions are transferred to the cathode through the electrolyte, and the electrons ...

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of the aforementioned conventional planar direct methanol fuel cell 10 is that the upper and lower frames 51, 52 of the bipolar plate assembly 12 are made of glass-reinforced resin materials such as FR4. Meet the increasingly thinner requirements of further portable electronic products

The electrode nets 121, 122, 123, 124, 125, and 126 of the aforementioned bipolar plate assembly 12 are all made of titanium metal nets and gold-plated, and the cost is very expensive.

[0009] Furthermore, the multiple bipolar metal electrode nets 122, 123, 124, and 125 that have been folded in the conventional planar direct methanol fuel cell 10 are not integrated on the upper and lower frames, but need to be artificially processed in advance. It is very troublesome and time-consuming, and it is not easy to achieve mass production scale

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