Lithium ion conductivity of A-site deficient perovskite solid solutions

被引：42

作者：

Harada, Y ^{[1
]}

Watanabe, H ^{[1
]}

Kuwano, J ^{[1
]}

Saito, Y ^{[1
]}

机构：

[1] Sci Univ Tokyo, Fac Engn, Dept Ind Chem, Shinjuku Ku, Tokyo 1628601, Japan

来源：

JOURNAL OF POWER SOURCES | 1999年 / 81卷

关键词：

ionic conductivity; lithium ion; perovskite; solid solution; solid electrolyte; A-site deficient;

D O I：

10.1016/S0378-7753(99)00105-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Over twenty of A-site deficient perovskite solid solution with Li+ ion conductivity (Li-ADPESSs) were prepared with the M and Li concentration fixed at M0.56Li0.33TiO3 in the five series: (A) (La1-X Nd-X)(0.56)Li0.33TiO3, (B) La0.56Li0.33M(IV)(X)Ti1-XO3[M(IV)= Zr,Hf], (C) (Ca1-XSrX)(0.56)Li0.33Ta0.56Ti0.44O3, (D) (Ca1-XSrX)(0.56)Li0.33Fe0.225Ta0.7775O3, E) Sr0.56Li0.33M(\\\)(0.225)Ta0.775O3[M(\\\) = Cr,Fe,Co,Ga,Y]. Except for the few, the quenched samples were the or-form with disordered arrangement of the A-site ions. The relation between bulk conductivity (sigma(b)) and the cube root (V-1/3) Of th, perovskite cell volume showed a maximum at V-1/3 = 387 pm for the series A, B and at V-1/3 approximate to 395 pm, for the series C-E, respectively. The perovskite framework containing less covalent, large cations calls for a larger optimal cell volume for fast conduction. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：777 / 781

页数：5

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