High-temperature polymer electrolyte membrane fuel cell

Abstract

The invention discloses a high-temperature polymer electrolyte membrane fuel cell, comprising a front plate, a bipolar plate, a membrane electrode and a back end plate. Bipolar plates and membrane electrodes which can be used as repeating units to be superimposed and the front plate and the back plate compose a galvanic pile of a high temperature polymer electrolyte membrane fuel cell. The anode uses hydrogen as fuel and the cathode uses carbon dioxide as fuel; the membrane electrode comprises a high temperature polymer electrolyte membrane and gas diffusion electrodes on both sides of the high temperature polymer electrolyte membrane, the high-temperature polymer electrolyte membrane is an acid-doped high-temperature resistant membrane, the catalytic layer on the gas diffusion electrode is closely bonded to the two surfaces of the acid doped high temperature resistant film, a membrane electrode is obtained by mechanically assembling a gas diffusion electrode and an acid-doped high-temperature resistant membrane. The fuel cell effectively utilizes CO2, solves the problems of high cost and large energy consumption of electrochemical reduction of CO2 in the traditional method, and makes it possible to utilize CO2 as a resource with low energy consumption, and has both economic and social significances.

Description

technical field [0001] The invention belongs to the field of fuel cells, in particular to a high-temperature polymer electrolyte membrane fuel cell. Background technique [0002] Energy and environment are two hot issues in the world today. In my country, more than 80% of the energy supply still depends on fossil fuels such as coal, oil and natural gas. The resulting CO 2 Extensive emissions lead to global environmental and climate change, seriously threatening human health and well-being. Therefore, seeking new ways of energy supply, reducing and eliminating carbon (CO 2 ) emission has become a major scientific issue in the field of energy and environment. [0003] Resource utilization of CO 2 Mainly through biological reduction, photochemical reduction, thermochemical reduction, electrochemical reduction, etc. The advantage of bioreduction technology is that the stereospecificity and product selectivity brought by the enzyme catalyst are very high, and the synthesis ...

AI Technical Summary

Problems solved by technology

However, the main disadvantages of this technology are: the activity temperature range of microorganisms (enzymes) is very narrow, the requirements for the living environment are relatively harsh, and the biological reduction of CO 2 Reactor is still in the exploratory stage

However, it uses a liquid electrolyte, which has the disadvantages of large volume and high cost, and its conversion rate is not high

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