An Investigation on Sr-doped Spinel Phase-LiSr xMn_2-xO₄

Authors

Hui ZHAN, College of Chemistry & Molecule Science, Wuhan University, Wuhan 430072, China
Yun-hong ZHOU, College of Chemistry & Molecule Science, Wuhan University, Wuhan 430072, ChinaFollow

Corresponding Author

Yun-hong ZHOU(y.h.zhou@263.net)

Abstract

Sr-doped spinel phase-LiSr_xMn_2-xO₄ was successfully prepared by solid-state method. Structural and electrochemical characterizations were carried out. Although Sr²⁺ has a large ion radius-1.12 , the spinel structure can be well maintained for LiSr_xMn_2-xO₄ sample as far as the x value doesn't surpass 0.05. Electrochemical study presents supporting evidence that doping the stoichiometric LiSr_xMn_2-xO₄ phase with Sr is an effective way to improve the cycleability of LiSr_xMn_2-xO₄ spinel material. A remarkable enhancement of the cycleability with retention of the initial capacity >90 % after 95 cycles was observed for the Sr-doped spinel.

Keywords

LiSrxMn2-xO4, Spinel phase, Cycleability

DOI Link

https://doi.org/10.61558/2993-074X.1453

Publication Date

2002-05-28

Online Available Date

2002-05-28

Revised Date

2002-05-20

Received Date

2001-11-17

Recommended Citation

Hui ZHAN, Yun-hong ZHOU. An Investigation on Sr-doped Spinel Phase-LiSr xMn_2-xO₄[J]. Journal of Electrochemistry, 2002 , 8(2): 165-171.
DOI: 10.61558/2993-074X.1453
Available at: https://jelectrochem.xmu.edu.cn/journal/vol8/iss2/5