Interfacial transport in lithium-ion conductors  

作　　者：王少飞 陈立泉 

机构地区：[1]Institute of Physics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2016年第1期43-50,共8页中国物理B（英文版）

基　　金：supported by the Beijing S&T Project,China(Grant No.Z13111000340000);the National Natural Science Foundation of China(Grant Nos.51325206and 11234013);the National Basic Research Program of China(Grant No.2012CB932900)

摘　　要：Physical models of ion diffusion at different interfaces are reviewed. The use of impedance spectroscopy （IS）, nuclear magnetic resonance （NMR）, and secondary ion mass spectrometry （SIMS） techniques are also discussed. The diffusion of ions is fundamental to the operation of lithium-ion batteries, taking place not only within the grains but also across different interfaces. Interfacial ion transport usually contributes to the majority of the resistance in lithium-ion batteries. A greater understanding of the interfacial diffusion of ions is crucial to improving battery performance.Physical models of ion diffusion at different interfaces are reviewed. The use of impedance spectroscopy （IS）, nuclear magnetic resonance （NMR）, and secondary ion mass spectrometry （SIMS） techniques are also discussed. The diffusion of ions is fundamental to the operation of lithium-ion batteries, taking place not only within the grains but also across different interfaces. Interfacial ion transport usually contributes to the majority of the resistance in lithium-ion batteries. A greater understanding of the interfacial diffusion of ions is crucial to improving battery performance.

关 键 词：ionic conductivity diffusion interface grain boundary lithium battery IMPEDANCE nuclear mag- netic resonance 

分 类 号：TM912[电气工程—电力电子与电力传动]