Low temperature synthesis of LiNi0.5Mn1.5O4 spinel

Low temperature synthesis of LiNi0.5Mn1.5O4 spinel

Pure LiNi0.5Mn1.5O4 phase was prepared by one-step solid-state reaction at 600 °C in air. TG measurement revealed that the oxygen loss occurred when the mixed precursors were heated above 700 °C. X-ray diffraction (XRD) pattern and scanning electron microscopic (SEM) image indicated that LiNi0.5Mn1....

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Veröffentlicht in:Materials letters 2006-05, Vol.60 (9-10), p.1273-1275
Hauptverfasser: Fang, Hai-sheng, Wang, Zhi-xing, Li, Xin-hai, Guo, Hua-jun, Peng, Wen-jie
Format: Artikel
Sprache:eng
Schlagworte:
Cathode material
LiNi0.5Mn1.5O4
Lithium ion batteries
Solid-state reaction
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Zusammenfassung:Pure LiNi0.5Mn1.5O4 phase was prepared by one-step solid-state reaction at 600 °C in air. TG measurement revealed that the oxygen loss occurred when the mixed precursors were heated above 700 °C. X-ray diffraction (XRD) pattern and scanning electron microscopic (SEM) image indicated that LiNi0.5Mn1.5O4 has cubic spinel structure with small and homogeneous particles. Electrochemical test showed that the prepared LiNi0.5Mn1.5O4 delivered up to 138 mA h g−1, and the capacity retained 128 mA h g−1 after 30 cycles.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2005.11.013