Graphene nanosheets for enhanced lithium storage in lithium ion batteries |
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| Authors: | Guoxiu Wang Xiaoping Shen Jane Yao Jinsoo Park |
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| Affiliation: | Institute for Superconducting and Electronic Materials, School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, NSW 2522, Australia |
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| Abstract: | Graphene nanosheets were synthesized in large quantities using a chemical approach. Field emission electron microscope observation revealed that loose graphene nanosheets agglomerated and crumpled naturally into shapes resembling flower-petals. High resolution transmission electron microscope analysis, Raman spectroscopy and ultraviolet-visible spectroscopy measurements confirmed the graphitic crystalline structure of the graphene nanosheets. The nanosheets exhibited an enhanced lithium storage capacity as anodes in lithium-ion cells and good cyclic performance. |
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