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Co-precipitation synthesis of spherical Li1.05M0.05Mn1.9O4 (M = Ni, Mg, Al) spinel and its application for lithium secondary battery cathode
- Issue Date
- Apr-2007
- Publisher
- Pergamon Press Ltd.
- Keywords
- co-precipitation; spinel; cathode; lithium; battery
- Citation
- Electrochimica Acta, v.52, no.16, pp 5201 - 5206
- Pages
- 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- Electrochimica Acta
- Volume
- 52
- Number
- 16
- Start Page
- 5201
- End Page
- 5206
- ISSN
- 0013-4686
1873-3859
- Abstract
- Metal-doped spinet lithium manganese oxides were successfully synthesized via co-precipitation. The synthesized Li1.05M0.05Mn1.90, (M=Ni, Mg, Al) had highly crystalline cubic spinel phase with the space group Fd3m, as confirmed by X-ray diffraction study. From scanning electron microscopic observation, it was found that the prepared materials had spherical morphology with high tap-density. The Li1.05M0.05Mn1.9O4 (M =Ni, Mg, Al) electrode exhibited improved cycling performance at elevated temperature. Especially, the Li1.05Al0.05Mn1.9O4 showed capacity retention of 91.5% during 100 cycles at elevated temperature (55 degrees C). Also the thermal stability of the Li1.05M0.05Mn1.9O4 (M=Ni, Mg, Al) was also significantly improved.
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Related Researcher
- Sun, Yang Kook
- COLLEGE OF ENGINEERING (DEPARTMENT OF ENERGY ENGINEERING)