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Updated: May 16, 2025
10:03
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
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Realizing reversible anionic redox based on a Na-O-Li configuration for Na-layered oxide cathodes with solid-solution
Mingjing Yang1,2, Guangyu Zhang1,2, Hai-Yan Hu1,2
1College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China. suyu@wzu.edu.cn.
Chemical Communications (Cambridge, England)
|April 4, 2025
Summary
Manganese-based layered oxide cathodes offer high energy and low cost for sodium-ion batteries. Modulating electronic configurations improves capacity from anionic redox in Na-O-Li systems.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Manganese-based layered oxides are promising cathodes for sodium-ion batteries (SIBs) due to high specific energy and cost-effectiveness.
- Anionic redox activity in these materials is key to achieving high capacity.
- Stabilizing anionic redox remains a challenge for practical SIB applications.
Purpose of the Study:
- To investigate Mn-based layered oxide cathodes for SIBs.
- To enhance and stabilize capacity derived from anionic redox.
- To achieve a complete solid-solution reaction through rational modulation of electronic configurations.
Main Methods:
- Synthesis and characterization of Mn-based layered oxide cathodes.
- Electrochemical testing of sodium-ion batteries.
- Analysis of electronic configurations and redox mechanisms.
Main Results:
- A complete solid-solution reaction was achieved in the Na-O-Li configuration.
- The modulation of electronic configurations enhanced anionic redox activity.
- Improved capacity and stability were observed in the developed cathode material.
Conclusions:
- Rational modulation of electronic configurations is effective for enhancing and stabilizing anionic redox in Mn-based layered oxide cathodes.
- The Na-O-Li configuration shows potential for high-performance sodium-ion batteries.
- This work contributes to the development of advanced energy storage solutions.
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