纳米级NASICON快离子导体的制备及其电导率研究

Preparation and Conductivity of Nanoscale NASICON Fast Ionic Conductor

固体电解质是一种新兴的电解质材料,它的离子在固体中可以快速的迁移,使它具有非常高的离子电导率。NASICON被誉为当下最具有发展前景的固态电解质材料之一。材料的纯度、晶型、颗粒大小等性质会对它的电导率产生影响,因此如何制备高性能的NASICON材料成为首要问题,在本文中将介绍采用溶胶凝胶法制备NASICON材料,并对所制备的NASICON粉体以及基片进行表征,并分别添加过量10%,15%,20%的原料磷酸氢二铵,来探究其对杂质相的抑制作用。最后以过量10%磷源的NASICON为电解质,对其进行电导率测试,以验证该固体电解质的可用性。

Solid electrolyte is an emerging electrolyte material,whose ions can migrate rapidly in a solid state,giving it a very high ionic conductivity.NASICON is praised as one of the most promising solid electrolyte materials.Material purity,crystal,particle size,and other properties will affect its conductivity,so how to prepare high performance NASICON material become the primary problem.In this paper will introduce the sol gel method to prepare NASICON material,and prepared the NASICON powder and substrate,and add excess 10%,15%,20%raw material diammonium phosphate,to explore the inhibition of the impurity phase.