Silicon Silver Composite Materials for Li-ion Batteries

Authors

Lian-bang WANG, State Key Lab Breeding Base of Green Chemistry-Synthesis Techology,College of Chemical Engineeringand Materials Science,Zhejiang Univ. Tech.,Hangzhou 310014,China;
Xiao-bo DAI, State Key Lab Breeding Base of Green Chemistry-Synthesis Techology,College of Chemical Engineeringand Materials Science,Zhejiang Univ. Tech.,Hangzhou 310014,China;
Xin-yan ZHU, State Key Lab Breeding Base of Green Chemistry-Synthesis Techology,College of Chemical Engineeringand Materials Science,Zhejiang Univ. Tech.,Hangzhou 310014,China;
Xin-biao MAO, State Key Lab Breeding Base of Green Chemistry-Synthesis Techology,College of Chemical Engineeringand Materials Science,Zhejiang Univ. Tech.,Hangzhou 310014,China;
Chun-an MA, State Key Lab Breeding Base of Green Chemistry-Synthesis Techology,College of Chemical Engineeringand Materials Science,Zhejiang Univ. Tech.,Hangzhou 310014,China;

Abstract

Si-Ag composite materials were prepared by mechanical alloying method. The morphology and composition of SiAg composites were investigated by SEM and XRD. The electrochemical properties of the composites were determined by charge-discharge tests and cyclic voltammetry. The composite composed of Si∶Ag with an atomic ratio of 1∶1 (sample 1#) showed good cyclic stability and charge-discharge reversibility. The reversible capacity of the composite (sample 1#) was remained over 300 mAh·g-1 after 50 cycles. Experimental results showed that controlling the potential range of charge-discharge processes could enhance the cyclic performance of alloy materials.

Keywords

lithium-ion batteries, negative material, mechanical alloying method, Si-based materials

DOI Link

https://doi.org/10.61558/2993-074X.1994

Publication Date

2009-08-28

Online Available Date

2009-08-28

Revised Date

2009-08-28

Received Date

2009-08-28

Recommended Citation

Lian-bang WANG, Xiao-bo DAI, Xin-yan ZHU, Xin-biao MAO, Chun-an MA. Silicon Silver Composite Materials for Li-ion Batteries[J]. Journal of Electrochemistry, 2009 , 15(3): 275-279.
DOI: 10.61558/2993-074X.1994
Available at: https://jelectrochem.xmu.edu.cn/journal/vol15/iss3/8