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Updated: Jun 23, 2026
10:03
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Dual-Carbon Synergistic Strategy Enabling SbPO4@MFC/rGO Composites With Hierarchical Conduction Network for
Yuan Mu1, Zewei Li2, Beibei Han3
1Key Laboratory of Energy Materials and Electrochemistry Research Liaoning Province, University of Science and Technology Liaoning, Anshan, Liaoning, China.
Small (Weinheim an Der Bergstrasse, Germany)
|June 22, 2026
Summary
Novel antimony phosphate/carbon composites offer enhanced performance for sodium-ion batteries (SIBs). These materials address volume expansion issues, demonstrating high capacity and stability for next-generation energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Antimony-based anodes are promising for sodium-ion batteries (SIBs) due to high capacity and conductivity.
- A key challenge is significant volume expansion during cycling, limiting battery lifespan.
Purpose of the Study:
- To develop novel antimony phosphate/carbon composites for improved SIB anode performance.
- To mitigate volume expansion and enhance electrochemical stability.
Main Methods:
- A multi-composited strategy was employed to synthesize antimony phosphate/carbon composites.
- The materials were characterized using electrochemical testing and density functional theory (DFT) calculations.
Main Results:
- The SbPO4@MFC/rGO-0.6 composite exhibited excellent electrochemical performance, retaining 201.6 mAh g-1 after 2000 cycles at 2.0 A g-1.
- DFT calculations confirmed enhanced interfacial interactions and Na+ binding within the nitrogen-doped carbon matrix.
- A full cell utilizing this anode achieved an energy density of 168.2 Wh kg-1 and maintained high power density.
Conclusions:
- The synergistic combination of antimony phosphate, graphene oxide, and nitrogen-doped carbon effectively addresses the limitations of antimony anodes.
- These composites represent a significant advancement in anode materials for high-performance sodium-ion batteries.
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