Related Experiment Video
Updated: Oct 15, 2025
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Advanced cobalt-free cathode materials for sodium-ion batteries
Shiyong Chu1, Shaohua Guo1,2, Haoshen Zhou1
1College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, National Laboratory of Solid State Microstructures, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing 210093, China. shguo@nju.edu.cn.
Sodium-ion batteries (SIBs) offer a promising alternative to lithium-ion batteries, addressing resource limitations. This review highlights advancements in cobalt-free cathode materials for SIBs, focusing on stability and performance.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Lithium-ion batteries (LIBs) face challenges due to high costs and limited reserves of lithium and cobalt.
- Solid-state LIBs with metallic lithium anodes are developed but share resource concerns.
- Sodium-ion batteries (SIBs) with cobalt-free cathodes present a viable solution to "lithium panic" and "cobalt panic".
Purpose of the Study:
- To comprehensively review recent advances in high-performance cobalt-free cathode materials for SIBs.
- To analyze the trade-offs between structural/electrochemical stability and inherent limitations of cobalt-free materials.
- To discuss strategies for enhancing the stability of cobalt-free cathodes using non-cobalt transition metals and suitable crystal structures.
Main Methods:
- Literature review of recent research on cobalt-free cathode materials for SIBs.
- Systematic analysis of factors affecting the stability of these materials.
- Discussion of material design strategies and synergistic effects in composite structures.
Main Results:
- Cobalt-free cathodes for SIBs show significant progress in performance.
- Key factors influencing stability include phase transformation, particle cracking, defects, distortion, oxygen redox, morphology, and transition metal migration.
- Composite structures and synergistic effects are crucial for improving material stability.
Conclusions:
- Developing stable cobalt-free cathode materials is essential for the advancement of SIBs.
- Understanding and mitigating degradation mechanisms are key to unlocking the full potential of SIB technology.
- This review provides insights and guidelines for future research in high-performance cobalt-free SIB cathodes.
