Porous Lithium Mangaense Phosphate-Carbon Composite Material, Preparation Method and Application Thereof
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United States of America Patent
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Jan 14, 2016
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Mar 4, 2014
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Mar 4, 2013
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A porous lithium manganese phosphate-carbon composite material, and a preparation and application thereof. Multiple nano-pores are distributed in the composite material, and the composite material includes a lithium manganese phosphate material and carbon. The method for preparing the porous lithium manganese phosphate-carbon composite material includes the steps of: mixing a porous pyrophosphate material with a doped metal source, a lithium source, phosphate and a carbon source and then drying them to obtain a reaction precursor, and calcining the reaction precursor at a constant temperature under a protective atmosphere to obtain the composite material. The lithium manganese phosphate material contains compounds in a general formula of LiMnxM1−xPO4, and the porous pyrophosphate material contains compounds in a general formula of (MnxM1−x)2P2O7 and 0 wt % to 50 wt % of carbon, where M comprises a transition metal, and 0.6≦x≦1.
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