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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received August 18, 2023
Accepted October 25, 2023
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Well-Dispersed Fluorine-doped Tin Oxide Nanoparticles on the One-Dimensional Network Structure of Carbon Nanofi bers for Enabling Ultrafast Lithium Storage
Abstract
The growing environmental concerns have spurred a surge in the interest in eco-friendly energy storage devices. Because of
their advantages, such as high energy density and long cycle life, Li-ion batteries (LIBs) are used in electronic devices and
electric vehicles (EVs). However, the specifi c capacity and ultrafast cycling performance of the LIBs used in EVs require further
improvement. In this study, well-dispersed fl uorine-doped tin oxide (FTO) nanoparticles (NPs) were deposited on carbon
nanofi bers (CNFs) using horizontal ultrasonic spray pyrolysis deposition to obtain a CNF/FTO electrode. The F atoms in tin
oxide increased its electrical conductivity. The one-dimensional CNF network structure enhanced the electrical conductivity
of the electrode. The abundant active sites in nanosized FTO facilitated Li-ion diff usion. The well-dispersed FTO NPs on
the CNF matrix prevented the agglomeration of the electrode material and substantial volume changes in the electrode during
its cycling. At a current density of 100 mA/g, the CNF/FTO electrode exhibited a superior discharge capacity of 487.96
mAh/g with a capacity retention of 66.7%, and even at an ultrafast current density of 2000 mA/g, it demonstrated excellent
performance with a discharge capacity of 289.3 mAh/g and a capacity retention of 93.6% after 500 cycles of operation.
