Synthesis,Characteristics and Electrochemical Performance of Nano-sized SnCo/Graphite Composites as Anode for Lithium Ion Batteries

Authors

• Jin-shu CAI, Department of Chemistry, College of Chemistry and Chemical Engneering,Xiamen University, Xiamen 361005, Fujian, China
• Ling HUANG, Department of Chemistry, College of Chemistry and Chemical Engneering,Xiamen University, Xiamen 361005, Fujian, ChinaFollow
• Fu-sheng KE, Department of Chemistry,College of Chemistry and Chemical Engneering; State Key Lab for Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, Fujian, China;
• Shi-gang SUN, Department of Chemistry,College of Chemistry and Chemical Engneering; State Key Lab for Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, Fujian, China;

Corresponding Author

Ling HUANG(huangl@xmu.edu.cn)

Abstract

The nano-structural Sn-Co/graphite composites were prepared by chemical reduction of the alloy electroless deposition solution in graphite suspensions, and the composites were annealed at 500 ℃. The phase structure and surface morphology of the composites were measured by XRD, SEM and Raman. The results indicate that there were high dispersions and high loadings of Sn-Co nanoparticles on graphite by thermal treatment. Electrochemical lithium storage performance was studied preliminarily on the obtained samples. The graphite modified with the Sn-Co nanoparticles possessed a higher electrochemical reversible capacity than that of graphite during the charge and discharge process. The appetency between the Sn-Co nanoparticles and graphite can effectively reduce or prevent active element Sn from flaking off the graphite. Interspace between deposited Sn-Co particles/particles can accommodate the larger structure strain of active materials produced during Li-ion insertion and extrction, which may both improve the cycle performance of the electrode.

Keywords

laminar graphite, composites, electroless deposition, electrochemical performance

DOI Link

https://doi.org/10.61558/2993-074X.1959

Publication Date

2009-02-28

Online Available Date

2009-02-28

Revised Date

2008-08-29

Received Date

2008-08-08

Recommended Citation

Jin-shu CAI, Ling HUANG, Fu-sheng KE, Shi-gang SUN. Synthesis,Characteristics and Electrochemical Performance of Nano-sized SnCo/Graphite Composites as Anode for Lithium Ion Batteries[J]. Journal of Electrochemistry, 2009, 15(1): 79-82.
DOI: 10.61558/2993-074X.1959
Available at: https://jelectrochem.xmu.edu.cn/journal/vol15/iss1/18