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随着锂离子电池应用范围的扩大,对其研究主要集中在正极材料的性能优化上.介绍了焦磷酸盐正极材料LixMP2O7(x=1,2)的结构和电化学性能,概括了近年来的研究进展,分析了其作为正极材料的优缺点.“,”With increasing application of Li-ion batteries, the research spot has been focused on cathode materials. The structure and electrochemical properties of pyrophosphate cathode materials for Li-ion batteries were introduced. The recent progress of pyrophosphate cathode materials was outlined. Meanwhile, the advantages and the disadvantages of LixMP2O7(x=1, 2)were analyzed.