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Updated: Jul 17, 2026

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
Published on: July 5, 2019
Fast, completely reversible li insertion in vanadium pentoxide nanoribbons.
Candace K Chan1, Hailin Peng, Ray D Twesten
1Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Vanadium pentoxide nanoribbons transform rapidly into lithium-intercalated phases, enabling faster charging and higher energy density for advanced lithium batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Layered nanostructures are crucial for lithium battery performance.
- Efficient electron transport and short ion diffusion paths are key design parameters.
Purpose of the Study:
- To investigate the nanoscale transformations of V2O5 nanoribbons during lithium insertion.
- To understand the relationship between nanostructure dimensions and electrochemical behavior.
Main Methods:
- Single nanostructure analysis of chemical, structural, and electrical properties.
- In-situ electrochemical studies of V2O5 nanoribbons.
Main Results:
- Transformation to omega-Li3V2O5 is dependent on nanoribbon width and thickness.
- Lithium diffusion in thin nanoribbons is 3 orders of magnitude faster than in bulk, enabling rapid charging (10s).
- Complete delithiation to pristine V2O5 was achieved, demonstrating a 30% increase in energy density.
Conclusions:
- Nanoscale effects facilitate strain relaxation and phase transformation, enhancing electrochemical performance.
- V2O5 nanoribbons offer potential for high-power and high-energy density lithium batteries.
- These findings are relevant for electric and hybrid electric vehicle applications.
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