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Updated: Jul 15, 2026
07:47
Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
Published on: November 27, 2015
Reverse microemulsion-assisted in situ SiO2 interfacial engineering for enhanced stability of NCM523 cathodes.
Guowei Jia1,2,3, Xianshuai Liu1,2,3, Yuanzhi Zhu1,2,3
1Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China. cedlxie@kust.edu.cn.
Nanoscale
|July 14, 2026
Summary
A new method uses reverse microemulsion to create a silica coating on NCM523 cathodes, improving lithium-ion battery stability and performance by reducing interfacial issues.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Layered oxide cathodes, such as NCM523, face challenges from interfacial instability and structural degradation in lithium-ion batteries.
- These issues limit the cycling stability and overall performance of the batteries.
Purpose of the Study:
- To develop an in situ silica (SiO2) interfacial engineering strategy for NCM523 cathodes.
- To enhance the structural integrity and electrochemical performance of layered oxide cathodes.
Main Methods:
- A reverse microemulsion-assisted strategy was employed during precursor synthesis of NCM523.
- An amphiphilic silane coupling agent was used to control particle growth and form a conformal SiO2 coating.
- The SiO2-coated NCM523 (NCM-3%Si) was synthesized and electrochemically tested.
Main Results:
- The NCM-3%Si cathode showed reduced polarization and suppressed interfacial side reactions.
- Improved structural integrity was observed during electrochemical cycling.
- Enhanced cycling stability and rate performance were achieved compared to uncoated NCM523.
Conclusions:
- Microemulsion-assisted in situ coating is an effective method for stabilizing the interface of layered oxide cathodes.
- This approach offers practical insights for improving the durability of lithium-ion battery materials.
- The SiO2 coating significantly enhances the electrochemical performance and stability of NCM523 cathodes.
