锂离子蓄电池正极活性材料磷酸亚铁锂

LiFePO_4 as the cathode active material for lithium ion battery

铁系正极材料是一类新型的锂离子蓄电池用正极材料。铁资源丰富、价廉并且无毒,铁系正极材料有良好的发展潜力。其中,橄榄石相的LiFePO4有可能替代LiCoO2成为新一代正极活性物质。综述了橄榄石相磷酸亚铁锂的电化学性能、结构特征、合成方法、表征方法和容量损失等方面的研究进展,并讨论了该材料的进一步研究方向。

The iron-based cathode materials for lithium ion battery are promising due to its abundant resource, low cost and environment friendly characteristic. Among them, the olivine LiFePO4 is a potential active material for substituting LiCoO2. The research progresses on the electrochemical properties, structural characteristics, synthesizing methods, characterization methods and capacity loss of the olivine LiFePO4 are reviewed. The further research trend of the material is also discussed.