Related Experiment Video
Updated: Mar 21, 2026
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Efficient plasma-enhanced method for layered LiNi1/3Co1/3Mn1/3O2 cathodes with sulfur atom-scale modification for
Qianqian Jiang1, Ning Chen, Dongdong Liu
1SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. hzhang@szu.edu.cn.
Atom-scale sulfur doping enhances lithium nickel cobalt manganese oxide (LiNi1/3Co1/3Mn1/3O2) for better battery performance. This modification improves capacity and cycling stability in positive electrode materials.
Area of Science:
- Materials Science
- Electrochemistry
- Solid-state Chemistry
Background:
- Lithium insertion materials like LiNi1/3Co1/3Mn1/3O2 are crucial for rechargeable batteries.
- Improving the electrochemical performance and stability of these materials is essential for advanced energy storage.
Purpose of the Study:
- To enhance the electrochemical performance of LiNi1/3Co1/3Mn1/3O2 through atom-scale modification.
- To investigate the effects of sulfur doping on the structure and electrochemical properties of LiNi1/3Co1/3Mn1/3O2.
Main Methods:
- A novel plasma-enhanced doping strategy was employed to introduce sulfur into LiNi1/3Co1/3Mn1/3O2.
- Physico-chemical characterizations were conducted to analyze the modified material's structure and properties.
- Electrochemical performance, including capacity, cycling stability, and rate capability, was systematically evaluated.
Main Results:
- Atom-scale substitution of oxygen with sulfur was achieved, forming LiNi1/3Co1/3Mn1/3O2-xSx.
- The sulfur doping stabilized the layered structure without significant alteration of the intrinsic cathode structure.
- The modified material exhibited a higher capacity (200.4 mA h g(-1)) and improved cycling stability (94.46% retention after 100 cycles).
- Excellent rate performance was observed, likely due to enhanced Li(+) transportation.
Conclusions:
- Atom-scale sulfur doping is an effective strategy to improve the electrochemical performance of LiNi1/3Co1/3Mn1/3O2.
- The developed plasma-enhanced doping method offers a novel approach for modifying electrode materials.
- This work provides insights into anionic doping for enhancing battery electrode materials.
