Sb2S3 nanorods/porous-carbon composite from natural stibnite ore as high-performance anode for lithium-ion batteries
(1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
2. Hunan Provincial Key Laboratory of All-Solid-State Energy Storage Materials and Devices, Hunan City University, Yiyang 413000, China;
3. Yiyang Huachang Antimony Industry Co., Ltd., Yiyang 413000, China)
2. Hunan Provincial Key Laboratory of All-Solid-State Energy Storage Materials and Devices, Hunan City University, Yiyang 413000, China;
3. Yiyang Huachang Antimony Industry Co., Ltd., Yiyang 413000, China)
Abstract: To avoid the high purity reagents and high energy consumption involved in the manufacturing of lithium-ion battery anode materials, Sb2S3 nanorods/porous-carbon anode was prepared by remodeling natural stibnite ore with porous carbon matrix via a simple melting method. Due to the nanostructure of Sb2S3 nanorods and synergistic effect of porous carbon, the Sb2S3 nanorods/porous-carbon anode achieved high cyclic performance of 530.3 mA·h/g at a current density of 100 mA/g after 150 cycles, and exhibited a reversible capacity of 130.6 mA·h/g at a high current density of 5000 mA/g for 320 cycles. This shows a great possibility of utilizing Sb2S3 ore as raw material to fabricate promising anodes for advanced lithium-ion batteries.
Key words: lithium-ion batteries; Sb2S3 ore; economical preparation; nanostructured anode material