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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 stabledoi:10.20964/2019.11.53 fatcat:ws7qw6ug4balbmjgvgpjstjydy