高级检索
无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

中温燃料电池的新固体电解质LiNaSO4-Al2O3

朱斌; MellandarBE; 刘皖育+; 陈树榆++; 修向前++; 王大志+   

  1. 瑞典哥德堡541296查尔摩斯工学院物理系; +中国科学技术大学材料科学与工程系; 合肥230026; ++中国科学技术大学结构研究开放实验室; 合肥230026
  • 收稿日期:1996-04-03 修回日期:1996-05-06 出版日期:1997-06-20 网络出版日期:1997-06-20

A Novel Solid Electrolyte Material LiNaSO4-Al2O3 for Intermediate Temperature Fuel Cells

ZHU Bin; Mellander B -E Mellander; LIU Wanyu+; CHEN Shuyu++; XIU Xiangqian+; WANG Dazhi++   

  1. Dept. of Physics; Chalmers University of Technology; 541296; Goteborg; Sweden;+Den. of Materal Science and Engineering; USTC Hejei 230026 China; ++Open Las. of Structure Research of USTC Hefei 230026 China
  • Received:1996-04-03 Revised:1996-05-06 Published:1997-06-20 Online:1997-06-20

PDF (PC)

854

摘要： 本文讨论了三相复合陶瓷电解质材料的制备和研究．XRD谱图表明了存在LINaSO4和γ－Al2O3相。500℃时的电导率达到10－2～10－1s／cm．在499℃出现六方到体心立方的相交．氧化铝使得样品在600℃以上能保持良好的机械强度，并且提高了电导率，高温质子迁移数为0．9～1.0

关键词: 燃料电池, 固体电解质

Abstract: Three-phase composite ceramic electrolyte was prepared and studied. The XRD pattern ofthis material shows a composited phase structurd of LiNaSO4 and γ-Al2O3. High conductivety(10-2 to 10-1 S/cm) can be achieved at 500℃. A phase transition appears at about 499℃. It maybe caused by an existence of bbc phase. Al2O3 makes a good LiNaSO4-Al2O3 skeleton at hightemperature, and the conductivity enhanced. The proton transport number for high temperaturephase is 0.9~1.0.

Key words: fuel cell, solid state electrolyte