ZnO/graphene nanocomposite fabricated by high energy ball milling with greatly enhanced lithium storage capability
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- 作者：Mingpeng Yu ; Dali Shao ; Fengyuan Lu ; Xiang Sun ; Hongtao Sun ; Tao Hu ; Gongkai Wang ; Shayla Sawyer ; Hong Qiu ; Jie Lian
- 关键词：ZnO ; Graphene ; Nanocomposite ; High energy ball milling ; Anode material
- 刊名：Electrochemistry Communications
- 出版年：2013
- 出版时间：September, 2013
- 年：2013
- 卷：34
- 期：Complete
- 页码：312-315
- 全文大小：1390 K
文摘
The ZnO/graphene nanocomposite was synthesized by high energy ball milling and evaluated as an anode material for lithium-ion batteries. EDX elemental mapping indicated that graphene was dispersed homogeneously in the ZnO matrix. The nanocomposite exhibits an initial reversible capacity of 783 mAh/g and maintained a capacity of 610 mAh/g after 500 cycles at 100 mA/g. Moreover, it shows excellent rate capability and cycling stability even at 10,000 mA/g, which can be attributed to the unique structure and the synergistic effect between the nanosized ZnO and graphene.