Forschungszentrum Julich GmbH 1 article published in JoVE Chemistry Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy Shibarata Basak1,2, Junbeom Park1, Janghyun Jo2, Osmane Camara1, Amir H. Tavabi2, Hermann Tempel1, Hans Kungl1, Chandramohan George3, Rafal E. Dunin-Borkowski2, Joachim Mayer2,4, Rüdiger-A. Eichel1,5 1Institute of Energy and Climate Research - Fundamental Electrochemistry (IEK-9), Forschungszentrum Jülich GmbH, 2Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 3Dyson School of Design Engineering, Imperial College London, 4Central Facility for Electron Microscopy (GFE), RWTH Aachen University, 5Institute of Physical Chemistry, RWTH Aachen University Utilizing the volume change of Si nanoparticles during (de)lithiation, the present protocol describes a screening method of potential coatings for all-solid-state batteries using in situ transmission electron microscopy.