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Improvement of electrochemical performance of Li[Ni(0.8)Co(0.15)Al(0.05)]O(2) cathode materials by AlF(3) coating at various temperatures
- Issue Date
- Jun-2008
- Publisher
- American Chemical Society
- Citation
- Industrial & Engineering Chemistry Research, v.47, no.11, pp 3876 - 3882
- Pages
- 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- Industrial & Engineering Chemistry Research
- Volume
- 47
- Number
- 11
- Start Page
- 3876
- End Page
- 3882
- ISSN
- 0888-5885
1520-5045
- Abstract
- A thin AlF(3) layer of similar to 10 nm was uniformly coated on the particle surface of Li[Ni(0.8)Co(0.15)Al(0.05)]O(2). The AlF(3) coating improved cycle performance at 55, 30, and -10 degrees C and improved storage characteristics at 60 degrees C. In studies of differential capacity (dQ/dV) versus voltage, the AlF(3)-coated Li[Ni(0.8)Co(0.15)Al(0.05)]O(2) showed little variation in redox peaks with cycling. Electrochemical impedance spectroscopy suggested that the AlF(3) coating played an important role in stabilizing the interface between the cathode and the electrolyte.
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Related Researcher
- Sun, Yang Kook
- COLLEGE OF ENGINEERING (DEPARTMENT OF ENERGY ENGINEERING)