Synthesis of Si-Sb-ZnO Composites as High-Performance Anodes for Lithium-ion Batteries.
The Si-Sb-ZnO composites were prepared by a chemical reduction-mechanical alloying method and were employed as anode materials for lithium-ion batteries. The electrochemical performance of the Si-Sb alloy was significantly improved by the addition of ZnO nanoparticles. Especially, the initial specific charge and discharge capacities for Si-Sb-(ZnO)0.3 composite were 845.1 and 1301.5 mAh/g, respectively, while the initial coulombic efficiency was 64.9 %. The capacity remained at 690 mAh/g after 200 cycles, and the capacity retention ratio was 81.6 %, which demonstrated excellent cycling stability and rate capability of the composite materials.
School of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China.
Yongliang
Y
Li
School of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China.
Liang
L
Huang
School of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China. pxzhang@szu.edu.cn.
Peixin
P
Zhang
School of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China.
Xiangzhong
X
Ren
School of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China.
Libo
L
Deng
Electrochemical properties; Lithium-ion batteries; Si-Sb-ZnO composite materials