Ionic Conduction in Ba_0.95Ce_0.9Y_0.1O_3-αSolid Oxide and its Performance in Fuel Cell

Authors

Xiao-gan LI, Lab. for Solid State Ionics, Material Sci. Coll. of Univ. of Sci. & Techn., Beijing 100083, China
Wei-hua QIU, Lab. for Solid State Ionics, Material Sci. Coll. of Univ. of Sci. & Techn., Beijing 100083, China
Chuan-gang LIN, Lab. for Solid State Ionics, Material Sci. Coll. of Univ. of Sci. & Techn., Beijing 100083, China
Qing-guo LIU, Lab. for Solid State Ionics, Material Sci. Coll. of Univ. of Sci. & Techn., Beijing 100083, China

Corresponding Author

Wei-hua QIU

Abstract

In this paper, we have synthesized series of single-phase LiAl_yNi_1-yO₂ (differentive in value-y) by solid reaction. Through examining their electrothemical properties, found that, under a proper sintering condition, Li_xAl_0.25Ni_0.75O₂ solution for cathode materials of rechargeable lithium ion batteries showed more pleasing properties in overcharge-resist and cycling life ( vs LiNiO₂). When x>1, the capacity can be kept 125mAh/g after 30 cycles under higher charged/discharged voltages ranging from 3.0 V to 4.8 V, whereas that of pure LiNiO₂ has only 61 nAh/g after 25 cycles. The results of CV for LiAl_yNi_1-yO₂ and pure LiNiO₂ showed that this may be due to the Al³⁺ doping and by preventing Li⁺ from overcharging, Al³⁺ conbined with Li⁺ obviated the phase transmission during charged/discharged progress.

Keywords

Cathode material for lithium ion batteries, LiAlyNi1-yO2 solutions, CV experiment

DOI Link

https://doi.org/10.61558/2993-074X.1398

Publication Date

2000-08-28

Online Available Date

2000-08-28

Revised Date

2000-08-20

Received Date

2000-01-03

Recommended Citation

Xiao-gan LI, Wei-hua QIU, Chuan-gang LIN, Qing-guo LIU. Ionic Conduction in Ba_0.95Ce_0.9Y_0.1O_3-αSolid Oxide and its Performance in Fuel Cell[J]. Journal of Electrochemistry, 2000 , 6(3): 357-362.
DOI: 10.61558/2993-074X.1398
Available at: https://jelectrochem.xmu.edu.cn/journal/vol6/iss3/13