锂离子电池的电极,电解液界面过程和性质对电池的性能起着至关重要的作用.本文综述了近年来原位扫描探针显微技术在锂离子电池界面研究中的应用进展,着重介绍了电化学原子力显微镜(EC-AFM)、扫描电化学显微镜(SECM)和扫描离子电导显微镜(SICM)在电极界面的形貌、力学性质和电化学性质等方面的研究技术和方法.此外,还讨论了适合于开展原位扫描探针研究的电极样品的制备方法,并展望了对扫描探针显微技术对从纳米尺度研究锂离子电池电极界面物理化学过程的前景.
The electrode/electrolyte interface plays a cri- tical role in the performance of a Li-ion battery. In view of the dynamic and complex nature of the interface, in situ research approaches can provide valuable information of interfacial phenomena during battery operation. In situ scanning probe microscopy (SPM) is a powerful technique used for the interfacial investigation of the Li-ion batteries. The versatile SPM techniques and their various operation modes have been utilized to measure the morphology and other properties of the electrode interface at high resolu- tion. Herein, we discuss the related SPM techniques to study the topography, mechanics and electrochemistry re- search of electrodes. Recent progresses of in situ SPM research on the electrode/electrolyte interface are summa- rized. Finally, the outlook of the technique is discussed.