中国物理B ›› 2016, Vol. 25 ›› Issue (1): 18202-018202.doi: 10.1088/1674-1056/25/1/018202

所属专题: TOPICAL REVIEW — Fundamental physics research in lithium batteries

• TOPICAL REVIEW—Fundamental physics research in lithium batteries • 上一篇    下一篇

Interfacial transport in lithium-ion conductors

Shaofei Wang(王少飞) and Liquan Chen(陈立泉)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2015-06-03 修回日期:2015-08-11 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Shaofei Wang E-mail:wsfwsry@163.com
  • 基金资助:

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

Interfacial transport in lithium-ion conductors

Shaofei Wang(王少飞) and Liquan Chen(陈立泉)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2015-06-03 Revised:2015-08-11 Online:2016-01-05 Published:2016-01-05
  • Contact: Shaofei Wang E-mail:wsfwsry@163.com
  • Supported by:

    Project supported by the Beijing S&T Project, China (Grant No. Z13111000340000), the National Natural Science Foundation of China (Grant Nos. 51325206 and 11234013) and 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.

关键词: ionic conductivity, diffusion, interface, grain boundary, lithium battery, impedance, nuclear magnetic resonance

Abstract:

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.

Key words: ionic conductivity, diffusion, interface, grain boundary, lithium battery, impedance, nuclear magnetic resonance

中图分类号:  (Electrolytes)

  • 82.45.Gj
66.30.H- (Self-diffusion and ionic conduction in nonmetals)