Modification of NASICON electrolyte in solid sodium-ion batteries——A short review  

固体钠离子电池中NASICON电解质的改性研究进展

作　　者：WU Si-hao YU Hai-qing HU Chen-yang FU Yu CHEN Fu-liang LI Wei-jie 仵思浩;于海清;胡晨阳;傅禺;陈赋良;李维杰(Powder Metallurgy Research Institute,Central South University,Changsha 410083,China;School of Materials Science and Engineering,Central South University,Changsha 410083,China)

机构地区：[1]Powder Metallurgy Research Institute,Central South University,Changsha 410083,China [2]School of Materials Science and Engineering,Central South University,Changsha 410083,China

出　　处：《Journal of Central South University》2024年第12期4510-4535,共26页中南大学学报(英文版)

基　　金：Projects(52204378,22309209)supported by the National Natural Science Foundation of China;Project(2023JJ40709)supported by the Natural Science Foundation of Hunan Province,China。

摘　　要：In recent years,the development and research of electrochemical energy storage systems that can efficiently transform chemical energy into electrical energy with a long service life have become a key area of study.Sodium-ion batteries,leveraging their chemical similarity to lithium-ion batteries,along with their abundant resources and low cost,are seen as a viable alternative to lithium-ion batteries.Additionally,all-solid-state sodium-ion batteries have drawn significant attention due to safety considerations.Among the solid electrolytes for all-solid-state sodium-ion batteries,the NASICON solid-state electrolyte emerges as one of the most promising choices for sodium battery solid electrolytes.However,to date,there has not been a comprehensive review summarizing the existing problems of NASICON electrolyte materials and the corresponding specific modification methods.This review simply summarizes the present issues of NASICON for all-solid-state sodium-ion batteries,such as,the low ionic conductivity,the poor interface stability and compatibility,and the dendrite formation.Then,the corresponding solutions to address these issues are discussed,including the ion doping,the interface modification,the sintering parameters optimization,and the composite electrolytes regulation.Finally,the perspectives of NASICON solid-state electrolyte are discussed.近年来,能源问题与绿色环保问题持续受到人们的关注,研究可再生能源的开发利用的重要性不言而喻,因此,研究并开发可以高效将化学能转化为电能且循环寿命长的电化学储能系统成为研究的重点。钠离子电池凭借其与锂离子电池的化学相似性,以及其资源丰富、价格低廉的特性,被认为是一种有前途的锂离子电池替代品。同时,鉴于安全性问题考虑,全固态钠离子电池受到了广泛关注。在全固态钠离子电池的固态电解质中,NASICON被认为是最有发展前景的钠电池固态电解质之一。然而,迄今为止,还没有一个全面的综述总结NASICON电解质材料的现有问题及其相应的改性方法。此篇综述基于NASICON的结构,讨论了其存在的问题,包括离子电导率不高、界面的稳定性与相容性欠佳、和存在枝晶等。针对以上问题,目前普遍的解决方法有掺杂元素、涂层和优化热处理工业等。

关 键 词：solid-state sodium-ion batteries NASICON electrolyte ionic conductivities interface stability improvement strategies 

分 类 号：TM9[电气工程—电力电子与电力传动]