Enhanced Electrochemical Performance of Heterogeneous Si/MoSi2 Anodes Prepared by a Magnesiothermic Reduction.
This work explores facile synthesis of heterogeneous Si/MoSi2 nanocomposites via a one-step magnesiothermic reduction. MoSi2 serves as a highly electrically conductive nanoparticle that has several advantages of electrochemical properties, which is formed through the absorption of local heat accumulation generated by magnesiothermic reduction. As a result, the Si/MoSi2 nanocomposites exhibit excellent electrochemical performance, showing initial charge capacity of 1933.9 mA h g(-1) at a rate of 0.2 C and retaining 85.2% after 150 cycles. This work using local heat accumulation generated by magnesiothermic reduction demonstrates a large-scale method for producing high-performance Si-based anode materials, which could provide referential significances for other materials.
School of Metallurgy and Environment, Central South University , Changsha 410083, China.
Lili
L
Wu
School of Metallurgy and Environment, Central South University , Changsha 410083, China.
Juan
J
Yang
School of Metallurgy and Environment, Central South University , Changsha 410083, China.
Xiangyang
X
Zhou
Department of Mechanical and Engineering, The Hong Kong Polytechnic University , Hong Kong, China.
Jingjing
J
Tang
School of Metallurgy and Environment, Central South University , Changsha 410083, China.
Yongpeng
Y
Ren
School of Metallurgy and Environment, Central South University , Changsha 410083, China.
Yang
Y
Nie
anodes; local heat accumulation; magnesiothermic reduction; molybdenum disilicide; silicon