聚磷酸铵基新型固体电解质及其在燃料电池中的应用  

NOVEL SOLID-STATE ELECTROLYTES BASED ON AMMONIUM POLYPHOSPHATE AND THEIR POTENTIAL APPLICATIONS IN FUEL CELLS

作　　者：陈西林[1] 夏长荣[1] 郭庆祥[1] 

机构地区：[1]中国科学技术大学材料科学与工程系生物质洁净能源实验室,安徽合肥230026

出　　处：《化工学报》2004年第S1期256-259,共4页CIESC Journal

基　　金：国家基金委中德基金(GZ210);"973"(TG 20000640)计划资助项目

摘　　要：介绍了一种新型的固体电解质,NH_4PO_3-(NH_4)_2SiP_4O_(13)复合物及其在燃料电池中的潜在应用。NH_4PO_3被认为是质子导体,并决定复合电解质的电化学性能;(NH_4)_2SiP_4O_(13)是复合电解质的支撑体,并具有提高复合电解质的稳定性作用。250℃时,复合电解质的导电率约为0.01S·cm^(-1),导电率在含水气氛中比在干燥气氛中约高1个数量级.本文对该电解质进行了初步的研究,结果表明,在200～300℃范围内,导电率达10^(-2)S·cm^(-1)量级。该复合物因此有可能成为新一代全固态燃料电池的新型固体电解质。This paper reviews the recent development on composites consisting of NH_4PO_3 and (NH_4)_2 SiP_4 O_(13), which are potential novel solid-state electrolytes for all-solid-state fuel cells that operated at temperature around 250℃. In this composite, (NH_4)_2SiP_4O_(13) is framework material to increase the stability of NH_4PO_3, which is proton conductor with high conductivity. Further more, the conductivity of electrolytes was remarkably high, 0.1S·cm^(-1)at 300℃, in a water-rich environment. Our recent wor...

关 键 词：固体电解质 燃料电池 聚磷酸铵 

分 类 号：TM911.4[电气工程—电力电子与电力传动]