Preparation of TiO2(B) Nanosheets by a Hydrothermal Process and Their Application as an Anode for Lithium-Ion Batteries
Abstract
TiO2 nanosheets with single monoclinic phase have been synthesized by a hydrothermal method using 6 M NaOH aqueous solution at 180°C. TiO2 nanosheets exhibited surface area of 100 m2 g‑1, which is larger than those obtained by solid-state reaction. The capability of lithium-ion batteries could be strongly enhanced by TiO2(B) nanosheets to yield discharge capacity higher than 200 mAh g‑1, even upon 25 cycles of 0.1-C-rate discharge–charge operations, showing highly reversible capacity and good cycling stability with excellent capacity retention of 96% with water-based binder. The results suggest that TiO2(B) nanosheets could be a promising negative electrode material for use in lithium-ion batteries.
- Publication:
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Journal of Electronic Materials
- Pub Date:
- April 2014
- DOI:
- 10.1007/s11664-013-2951-y
- Bibcode:
- 2014JEMat..43.1048W
- Keywords:
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- TiO<SUB>2</SUB>(B) nanosheets;
- hydrothermal synthesis;
- Li-ion batteries