Synthesis and Electrochemical Properties of Fe1-xS@C with Good Stability as an Anode Material for Lithium Ion Batteries

Yimeng Liao, College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054 Xinjiang, China
2019 International Journal of Electrochemical Science  
In this study, we use a rapid, convenient, and cost-effective precipitation method to synthesis Fe1-xS@C anode materials for use in lithium ion batteries (LIBs). We found that using a special carbon source acetylene black can lead to higher discharge specific capacity and a long cycling life of the LIB with Fe1-xS@C anode. The sample prepared with 10 wt% of the carbon source and calcined at 600 °C showed the best electrochemical performance. The optimum Fe1-xS@C sample maintained a very stable
more » ... tate after the initial 30 cycles of attenuation at 100 mA·g -1 and exhibited a high and stable reversible capacity of 644 mA·h·g -1 until the 200th cycle.
doi:10.20964/2019.11.53 fatcat:ws7qw6ug4balbmjgvgpjstjydy