锂镧钛氧固体电解质的研究  

Research on Li-lanthanum-titano solid electrolytes

作　　者：张兆刚[1] ZHANG Zhaogang(College of Physics Science and Engineering Technology,Yichun University,Yichun 336000,China)

机构地区：[1]宜春学院物理科学与工程技术学院,江西宜春336000

出　　处：《应用化工》2024年第12期3043-3050,共8页Applied Chemical Industry

基　　金：江西省教育厅高等学校教学改革研究项目(JXJG-22-15-25);宜春市重点基础研究项目(2023ZDJCYJ12)。

摘　　要：全固态锂电池因其高安全性和高能量密度被公认为是下一代优良的电池系统,研发离子电导率高、电极与固体电解质之间界面电阻低的固体电解质是全固态电池大规模工业实用化的关键。在众多固体电解质中,锂镧钛氧钙钛矿型锂离子固态电解质由于具有较高的离子电导率、优异的化学稳定性以及成本低廉等优点,在全固态锂电池研究中引起特别关注。基于最近发表的论文和我们的研究,对锂镧钛氧钙钛矿电解质的晶体结构、制备方法、掺杂改性和界面问题进行了综述,并在分析锂镧钛氧研究难点基础上提出改进的措施。All-solid lithium batteries are considered as the next generation of promising battery systems due to their high safety and attractive energy density.Solid electrolytes with high conductivity and low interfacial resistance between electrodes and solid electrolytes is a crucial aspect for all-solid-state batteries in a wide range of industrial practical applications.Among various solid electrolytes,Li-lanthanum titano-perovskite-type solid electrolyte is of particular interest in superior all solid-state lithium batteries owing to its high ionic conductivity,excellent chemical stability and low cost.Here,the pursuit of the state-of-the-art has stimulated our increasing efforts to review on the crystal structure,preparation method,doping modification and interface problems of Li-lanthanum titano-perovskite based on recently published papers and our studies.On the analysis of the recent research on problems for Li-lanthanum titano-perovskite-type solid electrolyte,several strategies have been developed to optimize their performance.

关 键 词：锂离子电池 固态电解质 锂镧钛氧 离子电导率 

分 类 号：TQ174[化学工程—陶瓷工业]