Effects of Annealing Temperatures on the Electrochemical Properties of Silicon Carbide Anode Film for Lithium Ion Battery

The effects of annealing temperatures on the electrochemical properties of silicon carbide anode films are investigated for lithium-ion battery applications. The SiC film shows improved electrochemical performance with increasing annealing temperature. The 900 ° C-annealed SiC film exhibits a reversible capacity of 580 mAh g $^{-1}$ over 100 cycles. Moreover, the 900 ° C-annealed film displays better rate performance with less severe degradation $(\sim 12.2$%) than the other two films.