title: Virus-enabled silicon anode for lithium-ion batteries.
abstract: 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.
authors: Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, USA.
authors: Xilin
authors: X
authors: Chen
authors: Konstantinos
authors: K
authors: Gerasopoulos
authors: Juchen
authors: J
authors: Guo
authors: Adam
authors: A
authors: Brown
authors: Chunsheng
authors: C
authors: Wang
authors: Reza
authors: R
authors: Ghodssi
authors: James N
authors: JN
authors: Culver
mesh_terms: D017097:Electric Impedance; D011211:Electric Power Supplies; D004563:Electrochemistry; D004566:Electrodes; D008094:Lithium / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D009532:Nickel / Q000737:chemistry; D012825:Silicon / Q000737:chemistry*; D014027:Tobacco Mosaic Virus / Q000378:metabolism*
chemical_list: D009532:Nickel; D008094:Lithium; D012825:Silicon