Sb_4O_5Cl_2/RGO/C复合材料的溶剂热制备及其储锂性能测试

Study on solvthermal synthesis and Li-storage properties of Sb_4O_5Cl_2/RGO/C composites

以葡萄糖为氧化石墨烯(GO)的还原剂和碳源,采用溶剂热法制备得到了Sb4O5Cl2/RGO/C复合材料,并首次将其用于锂离子电池负极材料进行充放电性能测试.结果表明,Sb4O5Cl2/RGO/C复合材料具有较高的可逆比容量和良好的循环性能,首次可逆比容量达636mAh·g-1,60次循环之后可逆容量仍保持在334mAh·g-1.同时,分别在100,200,500和1 000mA·g-1电流密度下进行充放电性能测试,可逆比容量分别为349,282,232和180mAh·g-1,呈现出较好的倍率性能.

A composite of Sb4O5Cl2/reduced grapheme oxide/carbon （Sb4O5Cl2/RGO/C） is synthesized by a solvothemal process,using glucose as the reducing agent for graphene oxide （GO） and the carbon source,and tested as an anode material for lithium-ion batteries by charge-discharge.The preparatory experimental results show that the as-prepared Sb4OsCl2/RGO/C composite can deliver a reversible capacity of 636 mAh·g-1 for the first cycle,and moreover a high reversible capacity of 334 mAh·g-1 can remain even after 60 cycles.Meanwhile,The Sb4O5Cl2/RGO/C composite can show a superior rate capacity of 349,282,232 and 189 mAh · g-1 at a current density of 100,200,500 and 1 000 mA · g-1,respectively.