Tin oxide nano-flower-anchored graphene composites as high-performance anode materials for lithium-ion batteries |
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| Authors: | Jing Li Jianqiang Guo Xia Zhang Rufang Peng |
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| Institution: | 1.Institute of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang,China |
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| Abstract: | The SnO2 nano-flower/graphene (SnO2-NF/GN) composites were synthesized by using graphene (GN) and SnO2 nano-flower (SnO2-NF). Among them, the SnO2-NFs were prefabricated by using sodium hydroxide and stannic chloride pentahydrate (SnCl4·5H2O) as raw materials. The results of SEM show that the SnO2-NFs are uniformly dispersed on the surface of GN. Furthermore, compared with the pure SnO2, the as-prepared SnO2-NF/GN composites displayed superior cycle performace and high rate capability. The SnO2-NF/GN composite delivers a specific capacity of 650 mAh g?1 after 60 cycles and an excellent rate capability of 480 mAh g?1 at 2000 mA g?1. |
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