Multiphysics simulations of nanoarchitectures and analysis of germanium core-shell anode nanostructure for lithium-ion energy storage applications

15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Clancy, T.^1 ; Rohan, J.F.^1

Tyndall National Institute, University College Cork, Lee Maltings, Cork, Ireland^1

关键词: Anode fabrication;    Current collector;    Electronic characteristics;    Multiphysics simulations;    Nanoarchitectures;    Rate capabilities;    Thin film material;    Volume expansion;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/660/1/012075/pdf
DOI  :  10.1088/1742-6596/660/1/012075

来源: IOP

【 摘 要 】

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.