Nanostructured ion beam-modified Ge films for high capacity Li ion battery anodes

Journal Article · Mon Feb 20 00:00:00 EST 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3689781· OSTI ID:22025445

Rudawski, N G; Darby, B L; Yates, B R; Jones, K S ^[1]; Elliman, R G ^[2]; Volinsky, A A ^[3]

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1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611-6400 (United States)
2. Department of Electronic Materials Engineering, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200 (Australia)
3. Department of Mechanical Engineering, University of South Florida, Tampa Florida 33620 (United States)

Nanostructured ion beam-modified Ge electrodes fabricated directly on Ni current collector substrates were found to exhibit excellent specific capacities during electrochemical cycling in half-cell configuration with Li metal for a wide range of cycling rates. Structural characterization revealed that the nanostructured electrodes lose porosity during cycling but maintain excellent electrical contact with the metallic current collector substrate. These results suggest that nanostructured Ge electrodes have great promise for use as high performance Li ion battery anodes.

• OSTI ID: 22025445
• Journal Information: Applied Physics Letters, Vol. 100, Issue 8; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANODES
CAPACITY
ELECTRIC CONTACTS
ELECTROCHEMISTRY
FABRICATION
GERMANIUM
GERMANIUM IONS
ION BEAMS
IRRADIATION
LITHIUM
LITHIUM IONS
NANOSTRUCTURES
NICKEL
PERFORMANCE
PHYSICAL RADIATION EFFECTS
POROSITY
SEMICONDUCTOR MATERIALS
SUBSTRATES
THIN FILMS