燃料电池用质子电解质的研究进展

The study of proton electrolyte used in fuel cell

目前,作为燃料电池的重要部件的质子电解质主要分为有机、有机-无机复合、无机三类。有机质子电解质接近商业化程度,但其价格昂贵,中温导电性差;复合质子电解质是以前者为基础掺杂增湿组分,使燃料电池性能有一定程度的增强;提高工作温度是解决燃料电池中催化剂CO中毒和提高燃料转化效率的有效办法,因此能在中高温环境中工作的无机质子导电材料已成为研究热点之一。

So far as one of the most important component of fuel cells, proton electrolytes can be classified into three types： organic materials, organic and inorganic composites, and inorganic materials. Although the organic proton electrolyte has become more commercial, the high cost and the poor conductive property is at intermediate temperature have hindered its application. Based on this, composite proton exchanging film overcomes some of the disadvantages and enhances properties of the fuel cells to a great extent. Increase the operating temperature an effective way to avoid the catalyst being out of work and improve the percent conversion of fuel cells. Therefore, inorganic proton electrolyte which can work in a middle and high operating temperature has attracted more attention.