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Published on: November 11, 2013
Nanostructured NiO/C composite for lithium-ion battery anode.
Yanna NuLi1, Peng Zhang, Zaiping Guo
1Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
Journal of Nanoscience and Nanotechnology
|May 14, 2009
Summary
A novel nanostructured nickel oxide/carbon (NiO/C) composite was developed as a lithium-ion battery anode, demonstrating excellent reversible capacity and stability for advanced energy storage applications.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Lithium-ion batteries are crucial for energy storage.
- Developing advanced anode materials is key to improving battery performance.
- Nickel oxide (NiO) shows promise but requires structural optimization.
Purpose of the Study:
- To synthesize a nanostructured NiO/C composite for lithium-ion battery anodes.
- To investigate the structural and electrochemical properties of the NiO/C composite.
- To evaluate its potential as a high-performance anode material.
Main Methods:
- Hydrothermal synthesis followed by calcination.
- X-ray powder diffraction (XRD) for phase analysis.
- Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) for morphology.
- Electrochemical testing for capacity, efficiency, and cycling stability.
Main Results:
- Successfully synthesized NiO/C composite with nanocrystalline NiO (7-20 nm) uniformly distributed in a carbon matrix.
- Achieved a high reversible capacity of 792.0 mAh/g.
- Demonstrated 75.5% initial coulombic efficiency and 58.1% capacity retention after 40 cycles at 60 mA/g.
Conclusions:
- The nanostructured NiO/C composite is a promising anode material for lithium-ion batteries.
- The carbon matrix enhances the electrochemical performance and stability of NiO nanoparticles.
- This material offers a viable pathway for next-generation high-energy-density batteries.
