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Glucose-assisted combustion synthesis of Li1.2Ni0.13Co0.13Mn0.54O2 cathode materials with superior electrochemical performance for lithium-ion batteries
- Source :
- RSC Advances. 6:79050-79057
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- Lithium-rich layered Li1.2Ni0.13Co0.13Mn0.54O2 cathode materials have been successfully fabricated by a glucose-assisted combustion method combined with a calcination treatment. The effect of the amount of glucose fuel on the properties of the prepared materials is investigated by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and electrochemical measurements. The results show that the nano-sized cathode material obtained at a fuel ratio of φ = 1 exhibits uniform fine well-crystallized particles with the largest specific surface area, leading to excellent cyclic capability and rate performance. It delivers the highest initial discharge capacity of 280.5 mA h g−1 with a capacity retention of 84% after 50 cycles at 0.1C (25 mA g−1). Besides, after cycling at an increasing rate from 0.2C to 3C, the electrode retained 90.3% (230.2 mA h g−1) of the initial discharge capacity when the rate was recovered back to 0.2C.
- Subjects :
- Materials science
Scanning electron microscope
General Chemical Engineering
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Electrochemistry
01 natural sciences
Cathode
0104 chemical sciences
law.invention
chemistry
X-ray photoelectron spectroscopy
law
Specific surface area
Electrode
Calcination
Lithium
0210 nano-technology
Subjects
Details
- ISSN :
- 20462069
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- RSC Advances
- Accession number :
- edsair.doi...........39ac9db5b886b4a4d07b5748eae2a34d