Fast and stable lithium-ion storage kinetics of anatase titanium dioxide/carbon onion hybrid electrodes

Research on alternatives to replace conventional graphite anodes is needed to advance lithium-ion battery technology. In this work, an anatase nano-TiO 2 /carbon onion hybrid material (nano-TiO 2 –C) is introduced as a rapid and stable lithium storage anode material, synthesized by a simple syntheti...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (20), p.9480-9488
Main Authors: Lim, Eunho, Shim, Hwirim, Fleischmann, Simon, Presser, Volker
Format: Article
Language:English
Subjects:
Anatase
Anodes
Carbon
Chemical synthesis
Electrode materials
Ion storage
Kinetics
Lithium
Lithium-ion batteries
Onions
Rechargeable batteries
Sol-gel processes
Storage
Titanium dioxide
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Summary:Research on alternatives to replace conventional graphite anodes is needed to advance lithium-ion battery technology. In this work, an anatase nano-TiO 2 /carbon onion hybrid material (nano-TiO 2 –C) is introduced as a rapid and stable lithium storage anode material, synthesized by a simple synthetic route using tailored sol–gel chemistry. The nano-TiO 2 –C hybrid material provides highly reversible capacity (166 mA h g −1 at 0.02 A g −1 ), promising rate capability (61 mA h g −1 at 5 A g −1 ), and long-term cycle stability (capacity retention: 94% at 1 A g −1 for 1000 cycles). We demonstrate that hybridization of nano-TiO 2 with carbon onions improves the high rate performance significantly.
ISSN:2050-7488
2050-7496
DOI:10.1039/C8TA02293C