Electrochemical properties of LiNi0.5Mn1.3Ti0.2O4/Li4Ti5O12 cells

Spinel compounds LiNi0.5Mn1.3Ti0.2O4（LNMTO） and Li4Ti5O12 （LTO） were synthesized by different methods. The particle sizes of LNMTO and LTO are 0.5-2 and 0.5-0.8 μm, respectively. The LNMTO/LTO cell exhibits better electrochemical properties at both a low current rate of 0.2C and a high current rate...

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Veröffentlicht in:	International journal of minerals, metallurgy and materials metallurgy and materials, 2012-05, Vol.19 (5), p.457-460
Hauptverfasser:	Liu, Guo-qiang, Wang, Xi, Gao, Ya-jie, Wen, Lei, Liu, Guang-yin, Zheng, Jian-jie, Cen, Peng, Li, Ying
Format:	Artikel
Sprache:	eng
Schlagworte:	Cathodes Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Composites Corrosion and Coatings Electrochemical analysis Electrochemistry Glass High current Low currents LTO Materials Science Metallic Materials Metallurgy Minerals Natural Materials Particle size Specific capacity Spinel Surfaces and Interfaces Thin Films Tribology 保证金化合物尖晶石电化学性能磁带细胞钛酸锂
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Zusammenfassung:	Spinel compounds LiNi0.5Mn1.3Ti0.2O4（LNMTO） and Li4Ti5O12 （LTO） were synthesized by different methods. The particle sizes of LNMTO and LTO are 0.5-2 and 0.5-0.8 μm, respectively. The LNMTO/LTO cell exhibits better electrochemical properties at both a low current rate of 0.2C and a high current rate of 1C. When the specific capacity was determined based on the mass of the LNMTO cathode, the LNMTO/LTO cell delivered 137 mA.h.g-1 at 0.2C and 118.2 mA-h-g-l at 1C, and the corresponding capacity retentions after 30 cycles are 88.5% and 92.4%, respectively.
ISSN:	1674-4799 1869-103X
DOI:	10.1007/s12613-012-0579-1