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Spindle-Like LiMnPO4 Assembled by Nanorods with Different Crystallographic Orientations as the Cathode of Lithium-Ion Batteries

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In this paper, we report on the solvothermal preparation of spindle-like LiMnPO4 assembled by nanorods with different crystallographic orientations and their electrochemical performance as the cathode materials of lithium-ion batteries. The crystallographic orientations of the nanorods were controlled via two synthetic routes with changed conditions. To improve the electric conductivity, the pristine LiMnPO4 has been carbon-coated by using sucrose as carbon source. The as-prepared LiMnPO4@C nanorods have been applied as the cathode of Li-ion batteries, showing the discharge specific capacity of 153.5 mA h g–1 at 0.05 °C. The nanorods grown along the [010] direction have exhibited better electrochemical performance than that with a large number of (020) planes. The result shows that [010] orientation of olivine-structured LiMnPO4 is favorable for the improvement of the electrochemical properties.
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Keywords: CATHODE MATERIALS OF LITHIUM-ION BATTERIES; CRYSTALLOGRAPHIC ORIENTATION; OLIVINE-TYPE LIMNPO4; SOLVOTHERMAL METHOD; SPINDLE-LIKE HIERARCHICAL STRUCTURE

Document Type: Research Article

Publication date: November 1, 2013

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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