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Recent developments in advanced anode materials for sodium-ion capacitors: a mini-review.
Jieming Cai1, Haoji Wang1, Zhiyu Hu1
1College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China. gq-zou@csu.edu.cn.
Chemical Communications (Cambridge, England)
|May 16, 2025
Summary
Sodium-ion capacitors (SICs) offer high energy and power density. This review explores advanced anode materials like carbon, metal sulfides, and MOFs to address kinetic mismatches for better SIC performance.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Sodium resources are abundant, driving development in sodium-ion storage devices.
- Sodium-ion capacitors (SICs) combine battery and supercapacitor advantages, offering high power, energy density, and stability.
- A key challenge for SICs is the kinetic mismatch between battery-type anodes and capacitor-type cathodes.
Purpose of the Study:
- To systematically review advanced battery-type anode materials for sodium-ion capacitors.
- To discuss sodium storage mechanisms and performance enhancement strategies for these anodes.
- To summarize current challenges and propose future research directions for SIC anode development.
Main Methods:
- Literature review focusing on carbon materials, metal sulfides, and metal-organic frameworks as anode materials.
- Analysis of sodium storage mechanisms and performance characteristics.
- Evaluation of modification strategies for improving anode performance.
Main Results:
- Carbon materials, metal sulfides, and metal-organic frameworks show promise as advanced anode materials.
- These materials exhibit high reversible capacity, excellent rate performance, and good cycling stability.
- Various modification strategies can significantly enhance anode performance for SICs.
Conclusions:
- Advanced anode materials are crucial for overcoming kinetic mismatches in sodium-ion capacitors.
- Continued research into carbon materials, metal sulfides, and MOFs, along with optimization strategies, is essential.
- Addressing existing challenges will pave the way for the practical application of high-performance SICs.
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