以固体电解质取代电解液的全固态电池是锂电池的一个重要发展方向。具有NASICON结构的玻璃陶瓷材料，由于其结构稳定、电导率较高, 受到国内外研究人员的广泛关注。同时，通过掺杂氮化物制备的微晶玻璃可以进一步提升其综合性能。本项目主要研究氮掺杂NASICON型LiM2(PO4)3微晶玻璃的组成优化和制备技术、析晶机理、电化学性能增强机理与综合性能优化、以及微晶玻璃的组成-工艺-结构-性能关系等。探讨微晶玻璃中的高缺陷结构，验证有利于锂离子迁移的通道的形成机理。建立新型氧氮化物微晶玻璃固体电解质的导电模型，发展高导电的微晶玻璃固体电解质新材料体系。这项研究对于促进高性能微晶玻璃电解质制备科学技术的进步，丰富氧氮化物玻璃的核化-晶化理论和性能演变规律，有着重要的科学意义与理论价值；其成功开发可增加微晶玻璃电解质的新品种，对满足我国国民经济建设对高性能能源材料的需求，有着十分重要的实用价值。

All-solid-state battery with solid electrolyte instead of liquid electrolyte is an important development direction of lithium batteries. Glass-ceramic materials with NASICON structure have attracted extensive attention from researchers at home and abroad due to their stable structure and high electrical conductivity. At the same time, the preparation of nitride-doped glass-ceramics by controlled crystallization process can further improve its comprehensive properties. This project is mainly to research the composition optimization and preparation technology of the N-doped NASICON LiM2(PO4)3 glass-ceramics, the crystallization mechanism, the enhancement mechanism of electrochemical performance and the optimization of comprehensive performance, and the composition-process-structure-performance relationship of these glass-ceramics, etc. The high defect structure of the glass-ceramics will be explored, and the formation mechanism of lithium ion migration channels will also be verified. We try to establish a conductive model of a new type of oxynitride glass-ceramic solid electrolytes, developing a new system of high-conductivity oxynitride glass-ceramics solid electrolyte materials. The research will promote the progress of preparation science and technology progress of glass-ceramics with high electric conductivity by enriching and developing the nucleation and crystallization theory and performance evolution rules of oxynitride glass. Obviously, the research has a very important scientific significance and theoretical value. Moreover, the successful development of the oxynitride glass-ceramic has great practical value because it can increase new kind of glass-ceramic electrolyte materials, meeting the needs of China's national economic construction for high-performance energy materials.