SnO_(2)-RGO-C负极材料的制备及其电化学性能研究

Study on Preparation and Electrochemical Performance of SnO_(2)-RGO-C Anode Material

为了提高SnO_(2)负极材料的循环稳定性以及导电能力,削弱体积效应的不利影响,本研究以RGO和无定形碳作为导电骨架和模板,通过水热法制备了一种SnO_(2)-RGO-C复合负极材料,探索不同的复合结构对SnO_(2)负极材料电化学性能的影响。使用XRD、SEM、TEM对样品结构和微观形貌进行了表征,对所制备的负极材料的电化学性能进行了测试和分析。结果表明:SnO_(2)-RGO-C负极材料在0.1 C电流密度下循环100圈后保持528.6 mAh·g^(-1)的可逆容量,表现出良好的循环性能。

In order to improve the conductivity and the stable cycle performance of SnO_(2)anode materials,reduce the adverse effects of the volume effect,a SnO_(2)-RGO-C composite anode material was synthesized through the hydrothermal and using RGO and amorphous carbon as the conductive framework and template,the influence of different composite components on the electrochemical performance of SnO_(2)anode materials was explored.XRD,SEM and TEM were used to characterize the samples,and the electrochemical properties of the prepared anode material were tested and analyzed.The results showed that the SnO_(2)-RGO-C anode material maintained a reversible capacity of 528.6 mAh·g^(-1)after being cycled for 100 cycles at a current density of 0.1 C,showing good cycle performance.