固态电池离子/电子传导及其传输线阻抗模型的研究进展  

Brief review of ion/electron conductions and their transmission line models for solid-state batteries

作　　者：席雅露 黄秋安 李伟恒 白玉轩 王佳 张方舟[1] 张久俊 XI Yalu;HUANG Qiuan;LI Weiheng;BAI Yuxuan;WANG Jia;ZHANG Fangzhou;ZHANG Jiujun(Institute for Sustainable Energy,College of Sciences,Shanghai University,Shanghai 200444,China;Shaanxi Key Laboratory of Nanomaterials and Nanotechnology,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China)

机构地区：[1]上海大学理学院可持续能源研究院,上海200444 [2]西安建筑科技大学陕西省纳米材料与技术重点实验室,陕西西安710055

出　　处：《上海大学学报（自然科学版）》2023年第5期915-925,共11页Journal of Shanghai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(22078190)。

摘　　要：固态锂电池因其具有预期的高能量密度、宽工作温度范围及高安全性而备受青睐,成为动力电源和能源存储的主要选择.然而,固-固界面的离子/电子迁移阻力大、稳定性不足、剥离易发生等问题严重限制了其实际应用及产业化.为了改善固态电池性能,深入理解离子/电子的传导机理,不仅需要获取原始实验数据,而且还需要利用阻抗传输线模型,分析离子/电子的彼此影响及分离离子与电子的独立贡献.综述了多孔电极中离子/电子传导的7种测试方法及其特点;讨论了多孔电极中离子/电子传导及其9种传输线模型;分析了离子/电子传导机理研究中仍存在的尚未解决的基本问题;给出了能改善固态电池循环稳定性的努力方向.上述措施便于快速了解插层电极中离子/电子传导的研究现状、关键问题和发展趋势.Solid-state lithium batteries with expected high energy density,wide operating temperature range,and high safety will become the primary choice in thefield of power supply and energy storage.However,issues like high ion/electron migration resistance,insufficient stability,and ease of peeling at the solid-solid interface considerably limit their practical applications and industrialization.A deep understanding of the ion/electron con-duction mechanism is imperative for improving the performance of solid-state batteries.Regarding this,it is necessary not only to obtain original experimental data but also to analyze the mutual influence of ions/electrons and their independent contribution to the total polarization loss through transmission line models.The following aspects are dis-cussed in this brief review.(1)the seven experimental methods for measuring ion/electron conductions in porous electrodes and their characteristics are reviewed;(2)ion/electron conductions in porous electrodes and their nine transport line models are discussed;(3)the unsolved problems in the study of ion/electron conduction mechanism are analyzed;(4)the possible directions of efforts to improve the cycle stability of solid-state batteries are proposed.This review benefits readers by quickly elucidating the research status,key is-sues,and development trends of ion/electron conduction in intercalation electrodes.

关 键 词：固态电池 界面电阻 循环稳定性 离子/电子传导 传输线阻抗模型 

分 类 号：O65[理学—分析化学]