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MoO2 nanoparticle-modified Li4Ti5O12 as high rate anode material for lithium ion batteries
- Source :
- Ceramics International. 43:15339-15344
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- MoO2 nanoparticle-modified Li4Ti5O12 materials were prepared via a facile solution-based method. X-ray diffraction patterns (XRD) and high resolution transmission electron microscopy (HRTEM) analyses revealed that the MoO2 nanoparticles were anchored on the surface of spinel Li4Ti5O12, and energy dispersive X-ray spectroscopy (EDX) mapping indicated the MoO2 nanoparticles distributed uniformly. Compared with the pristine Li4Ti5O12, the appropriate amount of MoO2 on the surface of the Li4Ti5O12 could not only effectively reduce the electrochemical polarization of Li4Ti5O12, but also contribute to specific capacity for lithium storage. The 3% MoO2 modified Li4Ti5O12 exhibited excellent rate capability of 116 mA h g−1 at 10 C, and superior cycling performance of 124 mA h g−1 after 450 cycles at 5 C. Since the MoO2 modification process was easy to handle and the source of Mo has affordable costs, MoO2-modified Li4Ti5O12 would be promising for industrial application.
- Subjects :
- Materials science
Inorganic chemistry
chemistry.chemical_element
Nanoparticle
02 engineering and technology
engineering.material
010402 general chemistry
01 natural sciences
chemistry.chemical_compound
Materials Chemistry
Lithium titanate
High-resolution transmission electron microscopy
Process Chemistry and Technology
Spinel
021001 nanoscience & nanotechnology
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Anode
chemistry
Chemical engineering
Ceramics and Composites
engineering
Surface modification
Lithium
0210 nano-technology
Molybdenum dioxide
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........d0cff45597d2a3bfe1a7853c0f3a6312