LiMnFePO (X = 0.6) has excellent energy density and thermal stability, combining the excellent multiplicity performance of LiFePO and the high operating voltage of LiMnPO. However, lower electronic conductivity and lithium ion diffusion rate are the main problems faced. We successfully synthesized LiMnFePO with uniform particles by a solvothermal method using surfactant PVP as an anti-agglomeration agent. At the same time, we found that the concentration of PVP in the reaction mixture plays a crucial role in the controllable structure and morphology of LiMnFePO, thus accelerating the de-embedding of lithium ions reached 145.2 mAh g under 1 C test. Therefore, the high-performance LiMnFePO/C nanomaterials synthesized by the solvothermal method are significant for developing and applying lithium-ion batteries.

中文翻译：

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PVP辅助制备高性能LiMn0.6Fe0.4PO4/C正极材料

LiMnFePO（X=0.6）具有优异的能量密度和热稳定性，结合了LiFePO优异的多重性能和LiMnPO的高工作电压。然而，较低的电子电导率和锂离子扩散速率是面临的主要问题。我们以表面活性剂PVP作为抗团聚剂，通过溶剂热法成功合成了颗粒均匀的LiMnFePO。同时，我们发现反应混合物中PVP的浓度对LiMnFePO的可控结构和形貌起着至关重要的作用，从而加速了锂离子的脱嵌，在1 C测试下达到145.2 mAh g。因此，溶剂热法合成的高性能LiMnFePO/C纳米材料对于锂离子电池的开发和应用具有重要意义。