In-situ and operando Scanning Probe Facility for the study of redox processes on nanometer scale in Lithium Ion batteries - First measurement results for in situ and operando characterisation of Lithium Ion Batteries by AFM techniques -

We developed a dedicated Atomic Force Microscopy set-up in a hermetically closed environment, coupled with a Galvanostat/Potentiostat which will be able to perform in-situ and operando measurements at the cathode-electrolyte and anode-electrolyte interface to monitor the interphase processes. The setup was tested in first measurements to prove the abilities for monitoring changes in morphology, impedance, and performing a combination of AFM-SECM for operando monitoring redox processes. First results of operando Atomic Force Microscopy will be presented in this paper to indicate the possibilities of the new build facility for visualising the forming of the Solid Electrolyte Interphase (SEI), which proved to be responsible for the most important ageing meganisms, and thus the cycle and calendar life of the battery. The measurements proved the possibilities of the setup to monitor SEI processes operando and visualizing impedance distribution on cathode-electrolyte and anode-electrolyte interfaces.