期刊
ACS NANO
卷 4, 期 9, 页码 5366-5372出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn100963j
关键词
silicon anode; lithium-ion battery; Tobacco mosaic virus; physical vapor deposition; nanostructure
类别
资金
- Department of Energy [DESC0001160]
- Maryland Technology Development Corporation [TEDCO 09102380]
- Department of Energy, the Office of Basic Energy Sciences [DEFG02-02-ER45975]
A novel three-dimensional Tobacco mosaic virus assembled silicon anode is reported. This electrode combines genetically modified virus templates for the production of high aspect ratio nanofeatured surfaces with electroless deposition to produce an integrated nickel current collector followed by physical vapor deposition of a silicon layer to form a high capacity silicon anode. This composite silicon anode produced high capacities (3300 mAh/g), excellent charge-discharge cycling stability (0.20% loss per cycle at 1C), and consistent rate capabilities (46.4% at 4C) between 0 and 1.5 V. The biological templated nanocomposite electrode architecture displays a nearly 10-fold increase in capacity over currently available graphite anodes with remarkable cycling stability.
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