Bi_2O_3基固体电解质材料研究进展  

Progress in Study on Bi_2O_3-based Solid Electrolyte Materials

作　　者：彭程[1] 张震[1] 

机构地区：[1]华南理工大学应用化学系,广州510641

出　　处：《材料导报》2006年第10期29-31,35,共4页Materials Reports

基　　金：华南理工大学自然科学青年基金项目(B15-E5050650);华南理工大学学生研究计划项目;华南理工大学百步梯攀登计划研究项目

摘　　要：从Bi2O3的结构和Bi2O3的掺杂研究两方面综述了Bi2O3基固体电解质材料的研究进展。有关研究表明:高电导率所对应的相是δ相,这是由其独特的结构特征所决定的;掺杂离子半径的大小、组成和掺杂量皆对Bi2O3基固体电解质的电导率和稳定性有着很重要的影响。尽管目前Bi2O3基固体电解质的氧离子导电性是所有正在开发的固体电解质中最高的,但是其热稳定性以及离子导电性都还有待于进一步改进。This paper reviews the recent research progress in Bi2O3 based solid electrolyte from its structure and doping research. It is demonstrated that the high conductivity corresponds to δ phase and this phenomena is decided by special structure of δ phase. At the same time, the ionic radius,composition and level of doping are directly linked to the conductivity and stability of Bi2O3 -based solid electrolyte. Although the oxygen ion conductivity of Bi2O3-based solid electrolyte is the highest among all solid electrolytes under development at present, the heat stability and ionic conductivity of this electrolyte need to be improved.

关 键 词：固体氧化物燃料电池 固体电解质 电导率 

分 类 号：TM911.4[电气工程—电力电子与电力传动]