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Updated: Mar 28, 2026
10:58
Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
Published on: March 7, 2018
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A Li4Ti5O12/TiO2@CNT Core/Shell Structure for Rechargeable Li Batteries
Journal of Nanoscience and Nanotechnology
|December 31, 2015
Summary
Researchers developed a novel Li4Ti5O12/TiO2@CNT core/shell structure to enhance lithium-ion battery anode performance. This design significantly improves conductivity and electrochemical activity for scalable applications.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Lithium titanate (Li4Ti5O12) is a promising anode material for rechargeable lithium batteries.
- Poor electrical conductivity hinders its large-scale application.
Purpose of the Study:
- To design a ternary core/shell structure to overcome the conductivity limitations of Li4Ti5O12.
- To improve the electrochemical performance and cycling stability of Li4Ti5O12 anodes.
Main Methods:
- Fabrication of a Li4Ti5O12/TiO2@CNT core/shell structure using hydrothermal reaction and heat treatment.
- Characterization of the nanostructure and composition.
- Electrochemical testing to evaluate performance.
Main Results:
- The core/shell structure features Li4Ti5O12/TiO2 nanocrystals anchored on a carbon nanotube (CNT) network.
- The CNT network ensures efficient electron transport.
- The integrated rutile-TiO2 phase enhances lithium ion kinetics.
- High reversible capacity and rate capability were achieved.
- Excellent long-term cycling stability at 5 C was demonstrated.
Conclusions:
- The Li4Ti5O12/TiO2@CNT core/shell structure effectively mitigates conductivity issues.
- This hybrid material offers superior electrochemical performance for advanced lithium-ion batteries.
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