Facile ball-milled synthesis of SnS2-carbon nanocomposites with superior
lithium storage |
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| Authors: | Haihua Zhao Hong Zeng Ying Wu Wen Qi Shengen Zhang Bo Li and Yunhui Huang |
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| Institution: | 1. Central Iron and Steel Research Institute, 76 South Xueyuanlu Rd, Haidan District, Beijing 100081, China;2. Institute for Advanced Materials Technology and School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;3. Beijing Key Laboratory of Energy Nanomaterials, Advance Technology & Materials Co., Ltd, China Iron & Steel Research Institute Group, Beijing 100081, China;4. Materials Center, Beijing Institute of Collaborative Innovation, Beijing 100081, China;5. State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China |
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| Abstract: | A facile high-energy ball-milling method was developed to synthesize SnS_2-carbon(SnS_2/C-x(x = 40, 50, 60 wt%)) nanocomposites. The results showed that as anode materials for lithium-ion batteries(LIBs), the SnS_2-C nanocomposites exhibited high discharge capacity and excellent cycling stability. For the optimized SnS_2/C-50 wt% nanocomposite, a discharge capacity as high as 700 mA h g~(-1) and the initial coulombic efficiency of 80.8% were achieved at a current density of 100 mA g~(-1). The unique structure with SnS_2 nanoparticles(NPs)embedded into carbon network provided abundant Li-ion storage sites, high electronic conductivity and fast ion diffusion. The ball-milled synthesis is applicable for large-scale preparation of new sulfide-based anode materials with good performance for LIBs. |
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| Keywords: | Nanocomposites Ball milling Anode Lithium-ion battery |
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