Carbon-Coated Silicon Nanowires on Carbon Fabric as Self-Supported Electrodes for Flexible Lithium-Ion Batteries.
A novel self-supported electrode with long cycling life and high mass loading was developed based on carbon-coated Si nanowires grown in situ on highly conductive and flexible carbon fabric substrates through a nickel-catalyzed one-pot atmospheric pressure chemical vapor deposition. The high-quality carbon coated Si nanowires resulted in high reversible specific capacity (∼3500 mA h g-1at 100 mA g-1), while the three-dimensional electrode's unique architecture leads to a significantly improved robustness and a high degree of electrode stability. An exceptionally long cyclability with a capacity retention of ∼66% over 500 cycles at 1.0 A g-1was achieved. The controllable high mass loading enables an electrode with extremely high areal capacity of ∼5.0 mA h cm-2. Such a scalable electrode fabrication technology and the high-performance electrodes hold great promise in future practical applications in high energy density lithium-ion batteries.
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Xiaolei
X
Wang
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Ge
G
Li
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.|Hydrogen and Fuel Cell Center for Industry, Academy and Laboratories, Korea Institute of Energy Research , 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, South Korea.
Min Ho
MH
Seo
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Gregory
G
Lui
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Fathy M
FM
Hassan
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Kun
K
Feng
Chemical Sciences and Materials Systems, General Motors Global Research and Development Center , 30500 Mound Road, Warren, Michigan 48090, United States.
Xingcheng
X
Xiao
Waterloo Institute for Nanotechnology, Department of Chemical Engineering, University of Waterloo , 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada.
Zhongwei
Z
Chen
Si nanowires; carbon cloth; flexible electrodes; lithium-ion batteries; subeutectic growth