【摘要】 锡基负极材料的理论储锂容量高,但循环稳定性和倍率性能差,难以满足实际应用的需要。我们以四氯化锡、二硫化碳、氨水、石墨烯为原料,采用水热-热处理相结合的方法,合成了氮硫共掺杂石墨烯/硫化锡复合材料（SnS₂@N,S-RGO）。该材料中,硫化锡纳米粒子均匀地生长在石墨烯上,增大了其比表面积,提高了其稳定性和导电性。因此,该复合材料的储锂容量高、倍率性能和循环稳定性好,有望用于高性能锂离子电池。更多还原

【Abstract】 Tin-based materials are promising anodes for lithium ion batteries（LIBs） due to their high theoretical specific capacity, but their poor cycling stability and bad rate performance limit their practical applications. Herein, SnS₂@N,S-co-doped graphene nanocomposite were successfully prepared via a combination of hydrothermal and calcination processby using tin chloride, carbon disulfide, ammonium hydroxide, graphene as the raw materials.It was found that SnS₂ nanoparticles were uniformly distributed on the surface of N,S-codoped graphene, and thus their specific surface was enlarged, and their conductivity and stability were improved. When used as anode material for LIBs, SnS₂@N,S-co-doped graphene nanocomposites exhibited high specific capacity, excellent rate performance and cycling stability,showing promise for application in high-performance LIBs.更多还原