锂离子二次电池正极材料晶体结构与电化学性能

The Electrical Properties and Crystal Structures of Positive Electrode Materials for Lithium Ion Battery

对比分析了锂离子电池的正极材料锂钴氧系、锂锰氧系、锂镍氧系材料以及目前颇具潜力的正极替代材料:含铁的聚阴离子化合物和高分子聚合物的微观晶体结构特征,讨论了由于材料晶体结构的差异产生的不同电化学性能,提出了锂离子二次电池正极材料在结构上所必须具备的特征。

The crystal structure of lithium cobalt system, lithium manganese system and lithium nickel system, together with the promising latent material of polymer and iron salt contained polyanions were reviewed. The characters of electrical properties were analyzed with the point of crystal structure. On this basis, the requirements in crystal structure for good positive electrode were suggested.