Silicon and Carbon Nanocomposite Spheres with Enhanced Electrochemical Performance for Full Cell Lithium Ion Batteries.
Herein, facile synthesis of monodisperse silicon and carbon nanocomposite spheres (MSNSs) is achieved via a simple and scalable surface-protected magnesiothermic reduction with subsequent chemical vapor deposition (CVD) process. Li-ion batteries (LIBs) were fabricated to test the utility of MSNSs as an anode material. LIB anodes based on MSNSs demonstrate a high reversible capacity of 3207 mAh g-1, superior rate performance, and excellent cycling stability. Furthermore, the performance of full cell LIBs was evaluated by using MSNS anode and a LiCoO2cathode with practical electrode loadings. The MSNS/LiCoO2full cell demonstrates high gravimetric energy density in the order of 850 Wh L-1with excellent cycling stability. This work shows a proof of concept of the use of monodisperse Si and C nanocomposite spheres toward practical lithium-ion battery applications.
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.
Wei
W
Wang
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.
Zachary
Z
Favors
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.
Changling
C
Li
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.
Chueh
C
Liu
Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA.
Rachel
R
Ye
Department of Chemical and Env. Engineering, University of California, Riverside, CA 92521, USA.
Chengyin
C
Fu
Central Facility for Microscopy and Microanalysis, University of California, Riverside, CA 92521, USA.
Krassimir
K
Bozhilov
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.|Department of Chemical and Env. Engineering, University of California, Riverside, CA 92521, USA.
Juchen
J
Guo
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.|Department of Electrical and Comp. Engineering, University of California, Riverside, CA 92521, USA.
Mihrimah
M
Ozkan
Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA.|Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA.
Cengiz S
CS
Ozkan