Synthesis and performance analysis of LiMn0.6Fe0.4PO4 cathode material
LiMn1-xFexPO4 with the advantages of low cost,environmental friendliness,high energy density as well as high stability,has a promising application for lithium-ion batteries.Among various methods for preparing LiMn1-xFexPO4,the solution method is suitable for its synthesis because of the better performance of the product.In this paper,the glucose was used as carbon source to obtain carbon-coated LiMn0.6 Fe0.4 PO4 nanoparticles by solid-phase reaction through hydroxide co-precipitation method and ball-milling method.The electrochemical testing results showed that the LiMn0.6 Fe0.4 PO4/C composite could deliver discharge capacities of 127 mAh/g,119 mAh/g,104 mAh/g and 82 mAh/g at 0.3 C,0.5 C,1 C and 2 C rate,respectively.In addition,the capacity retention was nearly 100％after 200 cycles at 1 C and 2 C,showing the excellent rate capability and cyclability.
lithium manganese iron phosphateco-precipitation methodcathode materiallithium-ion batteriescarbon coating
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