Multiphysics simulations of nanoarchitectures and analysis of germanium core-shell anode nanostructure for lithium-ion energy storage applications
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Date
2015
Authors
Clancy, Tomás M.
Rohan, James F.
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing Ltd.
Published Version
Abstract
This paper reports multiphysics simulations (COMSOL) of relatively low conductive cathode oxide materials in nanoarchitectures that operate within the appropriate potential range (cut-off voltage 2.5 V) at 3 times the C-rate of micron scale thin film materials while still accessing 90% of material. This paper also reports a novel anode fabrication of Ge sputtered on a Cu nanotube current collector for lithium-ion batteries. Ge on Cu nanotubes is shown to alleviate the effect of volume expansion, enhancing mechanical stability at the nanoscale and improved the electronic characteristics for increased rate capabilities.
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Keywords
Lithium-ion batteries , Anodes , Conductive materials , Electrodes , Energy conversion , Germanium , Lithium alloys , Lithium compounds , Mechanical stability , Nanotechnology , Nanotubes , Yarn , Anode fabrication , Current collector , Electronic characteristics , Multiphysics simulations , Nanoarchitectures , Rate capabilities , Thin film material , Volume expansion
Citation
Clancy, T. and Rohan, J. F. (2015) 'Multiphysics simulations of nanoarchitectures and analysis of germanium core-shell anode nanostructure for lithium-ion energy storage applications', Journal of Physics: Conference Series, 660, 012075 (5 pp). doi: 10.1088/1742-6596/660/1/012075