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| 论文编号: |
122214O120130054 |
| 第一作者所在部门: |
708组 |
| 中文论文题目: |
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| 英文论文题目: |
Preparation of three-dimensional graphene networks for use as anode of lithium ion batteries
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| 论文题目英文: |
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| 作者: |
李海
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| 论文出处: |
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| 刊物名称: |
Functional Materials Letters
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| 年: |
2013
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| 卷: |
6 |
| 期: |
6 |
| 页: |
1350063-1-1350063-4 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
1.27
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| 摘要: |
The three-dimensional (3D) graphene networks have been prepared by annealing the mixture of graphene oxide and SiO2
nanoparticles and then etching SiO2. The obtained material was characterized by X-ray diffraction, scanning electron microscope
and transmission electron microscopy, which revealed that 3D networks consisting of crumpled graphene nanosheets were preserved
after the removal of SiO2. When used as anode material of lithium ion batteries, the graphene networks showed a reversible
capacity of 610.9 mAh/g at a current density of 50 mA/g after 50 cycles and excellent rate capability of 291.5 mAh/g at a current
density of 5000 mA/g. The good electrochemical performance can be attributed to the network structure, which enables graphene to
electrochemically absorb more lithium ions and significantly improve the electrical conductivity of electrode. The graphene
networks have the potential applications in ultracapacitor and catalyst supports. |
| 英文摘要: |
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| 外单位作者单位: |
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