Synthesis and Electrochemical Behaviors of Li2CoxMn1-xSiO4 as a Cathode Material for Lithium-Ion Batteries

Authors

Lin WANG
Dong-ping LV
Yong YANGFollow

Corresponding Author

Yong YANG(yyang@xmu.edu.cn)

Abstract

We have successfully synthesized Li2CoxMn1-xSiO4/C (x=0, 0.1, 0.3, 0.5, 1)/C composites using hydrothermal assisted sol-gel process and ball-milling method. The results of X-ray diffraction show that the solid solutions of Li2CoxMn1-xSiO4 can be achieved when x≤0.3. The initial capacities increase from 70 mAhg-1??? of Li2MnSiO4/C to 105 mAhg-1??? of Li2Co0.3Mn0.7SiO4/C. Cyclic Voltammetry (CV) curves show that the replacement of Mn with Co can reduce the electrochemical polarization, making the insertion-extraction reaction of Li+ much easier. EIS results also prove that Co can decrease the charge transfer impedance of the materials.

Graphical Abstract

DOI Link

https://doi.org/10.61558/2993-074X.2847

Publication Date

2011-08-28

Online Available Date

2011-06-09

Revised Date

2011-03-15

Received Date

2011-03-07

Recommended Citation

Lin WANG, Dong-ping LV, Yong YANG. Synthesis and Electrochemical Behaviors of Li2CoxMn1-xSiO4 as a Cathode Material for Lithium-Ion Batteries[J]. Journal of Electrochemistry, 2011 , 17(3): Article 14.
DOI: 10.61558/2993-074X.2847
Available at: https://jelectrochem.xmu.edu.cn/journal/vol17/iss3/14