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Updated: Jul 18, 2025
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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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Stabilizing Decavanadate Cluster as Electrode Material in Sodium and Lithium-ion Batteries
Meena Ghosh1, Dieter Sorsche1, Rezwana Binte Ahmed1
1Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081, Ulm, Germany.
Chemsuschem
|August 24, 2023
Summary
Guanidinium stabilizes decavanadate clusters, enhancing their use as battery electrodes. This crystal engineering approach improves stability and performance in sodium-ion and lithium-ion batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Inorganic Chemistry
Background:
- Decavanadate clusters ({V10}) show promise for lithium and post-lithium batteries.
- Low stability and solubility in organic electrolytes hinder their practical application.
- Thermal transformation into oxides during fabrication is a significant challenge.
Purpose of the Study:
- To enhance the stability of decavanadate clusters for battery applications.
- To investigate the effect of guanidinium cation on decavanadate cluster stability.
- To evaluate the performance of stabilized decavanadate clusters as battery electrode materials.
Main Methods:
- Crystal engineering approach using guanidinium (Gdm+) cation.
- Hydrogen-bonding interactions to stabilize the decavanadate anion.
- Comparative analysis of solubility and thermal stability with tetrabutylammonium (Tba+) clusters.
- Testing as anode material in sodium-ion and lithium-ion battery half and full cells.
Main Results:
- Guanidinium-decavanadate (Gdm{V10}) exhibits improved solubility and thermal stability compared to Tba{V10}.
- Gdm{V10} demonstrates superior rate capability and cycling stability in sodium-ion battery half-cells.
- Performance evaluation in a lithium-ion battery full cell with LiFePO4 cathode.
Conclusions:
- Crystal engineering via guanidinium cation effectively stabilizes decavanadate clusters.
- Enhanced stability translates to improved electrochemical performance in batteries.
- This strategy offers a viable pathway for developing advanced battery electrode materials.
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