LiMn0.6Fe0.4PO4/C(LMFP)composite synthesized by a combined process of co-precipitation and solid-phase sintering not only has low impurity content,uniform phase distribution,but also exhibits excellent electrochemical performance.It is shown that such process can inhibit the formation of Mn2P2O7 phase and improve the lithium ion diffusion rate of LMFP,while removing NH4+and H2O.The Li-ion batteries assembled with LiMn0.6Fe0.4PO4/C exhibit excellent electrochemical performance,showing initial specific discharge capacity of 145.5 mAh/g at 1C and 111.9 mAh/g at 5C.It is concluded that this process,being simple and cost-effective,is suitable for industrial production.Such study provides a feasible scheme in designing cathode materials for commercialized high-performance Li-ion batteries.
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