锂离子蓄电池正极材料固体核磁共振研究进展

固体核磁共振波谱法(NMR)是研究锂离子蓄电池正极材料结构变化和电化学性能的一种有效手段。综述了固体NMR在锂离子蓄电池正极材料结构变化及嵌锂机理方面的一些进展,并提出了固体NMR对于研究锂离子蓄电池正极材料的电化学性能以及充放电过程中对应于锂离子嵌/脱过程中的材料结构变化和Li与邻近金属原子的配位情况具有重要的作用;展望了固体NMR技术在锂离子蓄电池正极材料中的应用前景,并认为这些技术将对未来锂离子蓄电池正极材料的研究具有重要意义。

Progress in solid-state NMR spectrum study of positive electrode materials for lithium ion batteries

Solid-state NMR spectrum is an effective technique for the study of local structural changes and electrochemical performance of positive electrode materials in lithium ion battery.The progress of the structural changes of the positive electrode materials and mechanism study of Li intercalation into positive electrode materials by using solid NMR techniques were reviewed.It has an important significance to research the electrochemical performance,structural changes and coordinating condition of Li with the neighbor metal atoms of the positive electrode materials during the charge/discharge cycle which corresponds to Li extraction/intercalation.The application foreground of solid NMR techniques in positive electrode materials of lithium ion battery is viewed,and it has guiding significance for the research of positive electrode materials of lithium ion batteries.