Low-power material separation and transmission direct methanol fuel cell and working method thereof

Abstract

The invention discloses a low-power material separation and transmission direct methanol fuel cell and a working method thereof. A plurality of methanol evaporation pipelines and a plurality of carbondioxide flow paths are respectively arranged in a methanol evaporation region, and a methanol conveying pipeline and a carbon dioxide flow path are independently arranged; and the anode product carbon dioxide is directly discharged through the carbon dioxide flow path after being generated, so that the mixing of the carbon dioxide and a methanol vapor is reduced, the utilization rate of the methanol vapor is increased, and meanwhile carbon dioxide collection and utilization are facilitated. After the methanol vapor is generated, the methanol vapor directly enters a membrane electrode to participate in the reaction, so that the additional power consumption is reduced; a stable flow path is formed in the overall process from the inflow of methanol to the discharge of carbon dioxide, the fuel self-circulation structure largely solves the problems of uneven methanol vapor concentration, insufficient methanol reaction, and methanol and carbon dioxide mixing and the like, so that the battery reaction is more stable and efficient.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a low-power consumption material separation and transmission direct methanol fuel cell and a working method thereof. Background technique [0002] Direct methanol fuel cells have the advantages of simple structure, normal temperature operation, high system volume specific energy, and convenient storage and transportation of fuel. They are considered to be one of the most promising mobile power sources for electronic products. Therefore, it has become a hot research topic of many scholars at home and abroad. At present, most of the research on direct methanol fuel cells is concentrated in the field of using liquid methanol as fuel, but because most of the fuel supply of methanol fuel cells needs to be mixed with water, this reduces the energy density of the fuel, and at the same time there is serious methanol in the process of operation. The penetration problem, while causing ...

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Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a low-power consumption material separation and transmission direct methanol fuel cell and its working method with accurate, efficient, stable operation, and continuous output, which solves the problem of uneven concentration of methanol vapor and methanol reaction. Insufficient, methanol and carbon dioxide blending problems, improve operating efficiency

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