Microscale measurements of the electrical conductivity of doped LiFePO4

被引：222

作者：

Chung, SY ^{[1
]}

Chiang, YM ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2003年 / 6卷 / 12期

关键词：

D O I：

10.1149/1.1621289

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrical conductivity at the microscopic grain level has been measured in densely sintered polycrystalline samples of LiFePO4 and Li0.99Nb0.01FePO4, using a four-point microcontact technique. The absolute value of conductivity as well as its spatial variability have been measured, and are consistent with previously reported bulk measurements. The results support the interpretation of the conductivity increase upon doping of LiFePO4 as a lattice effect. (C) 2003 The Electrochemical Society.

引用

页码：A278 / A281

页数：4

共 6 条

[1] Thermal stability of LiFePO4-based cathodes [J].