Synthesis and electrochemical performance of: Li2Co1-xMxPO4F (M = Fe, Mn) cathode materials

被引：0
|
作者：
Khasanova, Nellie R. [1 ]
Drozhzhin, Oleg A. [1 ]
Fedotov, Stanislav S. [1 ]
Storozhilova, Darya A. [1 ]
Panin, Rodion V. [1 ]
Antipov, Evgeny V. [1 ]
机构：
[1] Department of Chemistry, Moscow State University, Moscow 119991, Russia
来源：
Beilstein Journal of Nanotechnology | 2013年 / 4卷 / 01期
关键词：
Electrochemical performance - Energy related - Fluoro-phosphates - Galvanostatic measurement - High voltage - Initial discharge capacities - Morphological features - Reversible capacity;
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学科分类号：
摘要：
In the search for high-energy materials, novel 3D-fluorophosphates, Li2Co1-xFexPO4F and Li2Co1-xMnxPO4F, have been synthesized. X-ray diffraction and scanning electron microscopy have been applied to analyze the structural and morphological features of the prepared materials. Both systems, Li2Co1-xFexPO4F and Li2Co1-xMnxPO4F, exhibited narrow ranges of solid solutions: x ≤ 0.3 and x ≤ 0.1, respectively. The Li2Co0.9Mn0.1PO4F material demonstrated a reversible electrochemical performance with an initial discharge capacity of 75 mA·h·g-1 (current rate of C/5) upon cycling between 2.5 and 5.5 V in 1 M LiBF4/TMS electrolyte. Galvanostatic measurements along with cyclic voltammetry supported a single-phase de/intercalation mechanism in the Li2Co0.9Mn0.1PO4F material. © 2013 Khasanova et al.
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页码：860 / 867
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