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中文摘要：
以石墨烯为基底,用水热法制备蜂窝状钴酸锌（ZnCo2O4）/还原氧化石墨烯（rGO）微球复合材料。用XRD、SEM分析复合材料的结构和形貌,用恒流充放电及循环伏安法测试复合材料的电化学性能。石墨烯的加入,可改变ZnCo2O4颗粒的形貌,并改善复合材料作为锂离子电池负极活性物质的电化学性能。以500 m A/g的电流在0.013.00 V循环,复合材料的首次放电比容量为1 326.7 m Ah/g,第70次循环的放电比容量为1 212.4 m Ah/g。
英文摘要：
The honeycomb-like zinc cobaltate（ ZnCo2O4 ）/reduced graphene oxide（rGO） microspheres composite was prepared by hydrothennal method using graphene as the substrate. XRD and SEM were used to analyze the structure and morphology of the composite, the electrochemical performance of the composite was tested by galvanostactic charge-discharge and cyclic voltammetry. Adding graphene could modify the morphology of ZnCo2O4 particle and improve the electrochemical performance of the composite as anode active material of L-ion battery. When cycled with the current of 500 mA/g in 0. 01 - 3.00 V,the initial specific discharge capacity of the composite was 1 326. 7 mAh/g,the specific discharge capacity was 1 212.4 mAh/g at the 70th cycle.
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