Electrochemical Performance of Li_(3.22)Na_(0.569)Mn_(5.78)O_(12.0)

Authors

Qing-song TONG, 1,2),YANG Yong~(2),LIAN Jin-ming~(2)(1.College of Chemistry and Materials,Fujian Normal University,Fuzhou 350007,China,2.State Key Laboratory of Physical Chemistry of Solid Surface,Xiamen University,Xiamen 361005,China;

Abstract

By selecting LiOH·H_(2)O and Mn(CH_(3)COO)_(2)2H_(2)O as starting-materials,the positive materials with the structure characterization of Li_(4)Mn_(5)O_(12)and composition of Li_(3.22)Na_(0.569)Mn_(5.78)O_(12.0)were prepared by two-phase sintering method consisted of microwave and solid-state sintering processes.XRD patterns data showed that a pure Li_(4)Mn_(5)O_(12)phase was obtained by the fore-treatment of microwave sintering and the post-treatment of the solid-state sintering at 380℃.The charge-discharge tests showed that the newly prepared sample exhibited an initial capacity of 132 mAh·g~(-1)and its capacity faded after 100 cycles was 6.8% lower as compared with 1st cycle capacity in the voltage range of 4.5 to 2.5 V.The sample stored for 4 months exhibited an initial capacity of 122 mAh·g~(-1)and its capacity faded after 100 cycles was 17.4% lower than its 1st cycle capacity in the same voltage range.The Mn-O bond of the sample strengthened by microwave sintering process.

Keywords

Li_(4)Mn_(5)O_(12), Microwave, Rechargeability

DOI Link

https://doi.org/10.61558/2993-074X.1683

Publication Date

2005-11-28

Online Available Date

2005-11-28

Revised Date

2005-11-28

Received Date

2005-11-28

Recommended Citation

Qing-song TONG. Electrochemical Performance of Li_(3.22)Na_(0.569)Mn_(5.78)O_(12.0)[J]. Journal of Electrochemistry, 2005 , 11(4): 435-439.
DOI: 10.61558/2993-074X.1683
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss4/16