Related Experiment Video
Updated: Jun 12, 2025
13:29
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
Published on: August 23, 2012
14.1K
Engineering (FeSn)/S nanocubes heterojunctions for improved sodium ion battery performance
Yilin Wang1, Kai Wang1, Qiming Liu2
1Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
Journal of Colloid and Interface Science
|September 19, 2024
Summary
Researchers developed a novel bimetallic sulfide (FeSn)/S anode for sodium-ion batteries (SIBs). This material effectively mitigates volume expansion issues, demonstrating excellent capacity and rate capability for advanced energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Transition metal sulfides are promising anode materials for sodium-ion batteries (SIBs) due to high capacity.
- Volume expansion during sodium ion reactions limits their practical application.
Purpose of the Study:
- To develop a stable and high-performance anode material for SIBs.
- To address the challenge of volume dilation in sulfide-based anodes.
Main Methods:
- Fabrication of bimetallic sulfide (FeSn)/S heterojunction materials using nanocube precursors.
- Electrochemical testing of the (FeSn)/S anode in SIBs.
Main Results:
- The (FeSn)/S anode achieved a specific capacity of 578 mAh/g after 1000 cycles at 2 A/g.
- Demonstrated excellent rate capability, delivering 796 mAh/g at 100 mA/g.
- Effectively alleviated capacity fading caused by volume expansion.
Conclusions:
- Bimetallic heterojunctions offer a viable strategy to overcome the limitations of traditional sulfide anodes.
- The developed (FeSn)/S material shows significant potential as an advanced anode for SIBs.
