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Controlled formation of core-shell structures with uniform AlPO4 nanoshells
Fen-Li Yang1, Wei Zhang1, Zi-Xiang Chi1
1Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China. anmin_cao@iccas.ac.cn wanlijun@iccas.ac.cn.
Chemical Communications (Cambridge, England)
|January 15, 2015
Summary
Uniform aluminum phosphate (AlPO4) nanoshells were synthesized on various core materials. Coating lithium cobalt oxide (LiCoO2) with these nanoshells significantly enhanced battery performance.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Developing advanced materials for energy storage is crucial.
- Surface coatings can improve the stability and performance of battery materials.
- Aluminum phosphate (AlPO4) is a promising coating material due to its chemical stability.
Purpose of the Study:
- To develop a method for synthesizing uniform AlPO4 nanoshells on diverse core substrates.
- To investigate the impact of AlPO4 nanoshells on the electrochemical performance of LiCoO2.
- To understand the role of formation kinetics in achieving uniform nanoshells.
Main Methods:
- Controlled precipitation of AlPO4 in solution.
- Kinetic control of nanoshell formation.
- Application of AlPO4 coating to LiCoO2 nanoparticles.
- Electrochemical testing of coated and uncoated LiCoO2.
Main Results:
- Achieved uniform AlPO4 nanoshells on various core materials.
- Demonstrated successful application of the coating protocol to LiCoO2.
- Observed significant improvement in the battery performance of LiCoO2 coated with AlPO4 nanoshells.
Conclusions:
- The developed method allows for the synthesis of uniform AlPO4 nanoshells.
- AlPO4 nanoshell coatings enhance the electrochemical properties of LiCoO2.
- Controlling formation kinetics is key to achieving effective nanoshell coatings for improved battery performance.
