透射电子显微镜技术在固态锂电池界面研究中的应用  

Application of Transmission Electron Microscopy in Studying Interface Issues of Solid-State Lithium Battery

作　　者：姜丰 王龙龙 孙兴伟 虞鑫润 马君[2] 周新红[1] 崔光磊[2] JIANG Feng;WANG Long-long;SUN Xing-wei;YU Xin-run;MA Jun;ZHOU Xin-hong;CUI Guang-lei(Qingdao University of Science and Technology,Qingdao 266042;Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao 266101)

机构地区：[1]青岛科技大学,山东青岛266042 [2]中国科学院青岛生物能源与过程研究所,山东青岛266101

出　　处：《分析科学学报》2019年第6期775-782,共8页Journal of Analytical Science

基　　金：国家自然科学杰出青年基金(No.51625204)

摘　　要：固态锂电池因高能量密度、高安全性、宽工作温度、长循环寿命及可弹性设计等诸多优点而受到广泛关注。但是界面反应、接触失效和锂枝晶生长等界面问题严重制约了固态锂电池的发展和应用,亟需采用先进的透射电子显微镜技术对固态锂电池界面结构、形态、化学和电子状态进行深入研究。本文概述了电子能量损失谱、球差校正和电子全息等先进技术对固态锂电池界面电荷转移、电位分布和锂枝晶生长等界面问题进行原位和非原位表征的研究进展,并展望了未来透射电镜技术在固态锂电池界面研究领域的发展方向。Solid-state lithium batteries have received wide attention due to their high energy density,high safety,wide operating temperature,long cycle life and flexible design.Nevertheless,the interface issues including interface reaction,poor contact,and lithium dendrite growth severely hinder the development of solid-state lithium batteries.Thus,it is essential to study the interface structure,morphology,chemical and electronic states of solid-state lithium batteries in-depth using the advanced transition electron microscopy techniques.Here,we summarize the advanced transition electron microscopy techniques of electron energy loss spectrum,spherical aberration correction technology,and electronic holography technology.Moreover,the application progress of these techniques in ex-situ and in-situ characterizing interface charge transfer,potential distribution and lithium dendrite growth in solid-state lithium batteries is reviewed in detail.Finally,the future development directions of transmission electron microscope technology in studying the interface issues of solid-state lithium batteries are prospected.

关 键 词：固态锂电池 界面 电子能量损失谱 球差校正 电子全息 原位 

分 类 号：O766^.1[理学—晶体学]