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High capacity Li[Li0.2Ni0.2Mn0.6]O-2 cathode materials via a carbonate co-precipitation method
- Issue Date
- Nov-2006
- Publisher
- ELSEVIER
- Keywords
- cathode material; carbonate co-precipitation; ASI; thermal stability; lithium secondary batteries
- Citation
- JOURNAL OF POWER SOURCES, v.162, no.2, pp.1346 - 1350
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 162
- Number
- 2
- Start Page
- 1346
- End Page
- 1350
- ISSN
- 0378-7753
- Abstract
- Spherical Li[Li0.2Ni0.2Mn0.6]O-2 has been synthesized by a carbonate co-precipitation method. The Li[Li0.2Ni0.2Mn0.6]O-2 with a phase-pure and well-ordered layered structure was synthesized by heat-treatment of a spherical (Ni0.25Mn0.75)(3)O-4 precursor with (LiOHH2O)-H-.. The average particle size of the Li[Li0.2Ni0.2Mn0.6]O-2 powders was approximately 20 mu m and the size distribution was quite narrow due to the homogeneity of the (Ni0.25Mn0.75)CO3. The Li[Li0.2Ni0.2Mn0.6]O-2 electrode calcined at 900 degrees C delivered an initial discharge capacity of approximately 270 mAh g(-1) in the voltage range of 2.0-4.6 V The differential scanning calorimetry (DSC) results for the Li[Li0.2Ni0.2Mn0.6]O-2 prepared at 900 degrees C showed a major exothermic reaction at 270 degrees C.
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Related Researcher
- Sun, Yang Kook
- COLLEGE OF ENGINEERING (DEPARTMENT OF ENERGY ENGINEERING)