Product Driven Material Separation Transport Direct Methanol Fuel Cell and Method of Operation

Abstract

The invention discloses a product driving material separation and transmission direct methanol fuel cell and a working method thereof. A methanol delivery pipeline and a carbon dioxide flow path are separately arranged. The carbon dioxide of an anode product is generated and then is directly discharged through the carbon dioxide flow path, which reduces the mixing of the carbon dioxide and a methanol steam, improves the utilization rate of the methanol steam, and facilitates the collection and the utilization of the carbon dioxide. After being generated, the methanol steam directly enters intoa film electrode to participate in a reaction so as to reduce extra power consumption. A fuel cell body is connected to a carbon dioxide buffer tank through a heat exchange pipeline, an anode productoutlet is externally connected with the carbon dioxide buffer tank, and power is provided for a piston in a methanol storage tank through the coordinated management of a fuel cell anode product and cell waste heat, and the supply of a methanol fuel is achieved without additional power consumption.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a product-driven material separation and transmission direct methanol fuel cell and a working method thereof. Background technique [0002] Direct methanol fuel cell (DMFC) is considered to be one of the most promising mobile power sources for electronic products due to its simple structure, normal temperature operation, high system volume specific energy, and convenient fuel storage and transportation. It has broad application prospects in the fields of transportation, national defense, etc., so it has become a hot research topic for many scholars at home and abroad. [0003] The electrode and cell reactions of a direct methanol fuel cell are as follows: [0004] The anode reaction is CH 3 OH+H 2 0→6H + +6e - +CO 2 [0005] The cathode reaction is 3 / 2O 2 +6H + +6e - →3H 2 o [0006] The total reaction of the battery is CH 3 OH+3 / 2O 2 →2H 2 O+CO 2 [0007] At ...

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Problems solved by technology

[0010] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a product-driven 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 methanol vapor concentration and uneven methanol reaction. Adequate, methanol and carbon dioxide blending problems, improve operating efficiency

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