中文摘要：

Na-Mn-O材料可作为离子交换法制备层状LiMnO2的前体,同时也可以直接作为锂离子电池的正极材料,被认为是锂二次电池研究中很有前景的新型材料。本文重点介绍了Na-Mn-O材料的晶体结构、制备方法,以及以该材料为前体,通过离子交换法合成的LixMnO2正极材料的结构与电化学性能。同时讨论了Na-Mn-O材料在锂二次电池、钠离子电池以及其它一些方面的应用,分析了Na-Mn-O材料作为未来锂二次电池正极材料的发展趋势。

英文摘要：

The Na-Mn-O materials can be used as a precursor for the synthesis of layered lithium manganese oxides via an ion exchange procedure, or directly be used as the cathode material for lithium ion batteries, which is considered to be a new promising material for secondary lithium batteries. This paper focuses on the structure and preparation methods of the Na-Mn-O material, especially the structure and electrochemical properties of LixMnO2 synthesized by ion exchange method using NaxMnO2 as a precursor. Simultaneously, the application of Na-Mn-O material for the lithium ion batteries, sodium ion batteries and other aspect are also discussed. The development trend of Na-Mn-O as cathode materials for future secondary batteries is analyzed.