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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
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Large interlayer spacing vanadium oxide nanotubes as cathodes for high performance sodium ion batteries.
Kun Zhang1, Guohua Gao1, Wei Sun1
1Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University Shanghai 200092 China gao@tongji.edu.cn wugm@tongji.edu.cn.
RSC Advances
|May 11, 2022
Summary
Ferric ion substituted vanadium oxide nanotubes with large interlayer spacing show enhanced sodium storage performance. These materials offer a promising cathode for sodium-ion batteries, outperforming traditional vanadium oxide.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Sodium-ion batteries (SIBs) are emerging as a viable alternative to lithium-ion batteries (LIBs).
- Developing efficient cathode materials is crucial for advancing SIB technology.
Purpose of the Study:
- To synthesize and characterize ferric ion substituted vanadium oxide nanotubes (Fe-VNTs) with large interlayer spacing.
- To evaluate the performance of Fe-VNTs as cathode materials for SIBs.
Main Methods:
- Hydrothermal synthesis using dodecylamine as a template.
- Ferric ion substitution process.
- Characterization of interlayer spacing (VNT: 2.7 nm, Fe-VNTs: 1.2 nm, V2O5: 0.44 nm).
Main Results:
- Fe-VNTs exhibit significantly larger interlayer spacing compared to pristine VNTs and orthorhombic V2O5.
- The increased spacing facilitates faster Na+ diffusion kinetics.
- Ferric ion incorporation enhances conductivity and reduces electrochemical resistance by removing organic templates.
Conclusions:
- Fe-VNTs demonstrate superior sodium storage performance as SIB cathodes.
- The enhanced performance is attributed to the optimized interlayer spacing and improved material conductivity.
