Dresden 2026 – scientific programme
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O: Fachverband Oberflächenphysik
O 24: Solid-liquid interfaces: Reactions and electrochemistry – Poster
O 24.1: Poster
Monday, March 9, 2026, 18:00–20:00, P2
Real-Time Electrochemical AFM Observation of Lithium Plating and Dissolution on HOPG: Surface Morphology and Mechanistic Insights — •Luca Kaufer1,2, Daniel Ebeling1, André Schirmeisen1, and Jürgen Janek2 — 1Institute of Applied Physics, Justus-Liebig-University, Gießen, Germany — 2Institute of Physical Chemistry, Justus-Liebig-University, Gießen, Germany
This investigation demonstrates the utilisation of atomic force microscopy (AFM) to examine the interactions between liquid electrolytes and Highly Ordered Pyrolytic Graphite (HOPG) electrodes. In particular, the focus is on the deposition of lithium on HOPG surfaces, a crucial process in lithium batteries. Atomic force microscopy measurements facilitate precise analysis of the surface structure, topog raphy, and mechanical properties. In addition, they permit observation of dynamic changes during lithium deposition. This, in turn, provides a deeper insight into the mechanisms of electrode surface reactions and the quality of the electrode surface. Such measurements are of great importance to improve the efficiency and lifetime of batteries by helping to understand and control processes such as dendritic growth or non-uniform deposition.[1,2] We will demonstrate the use of Asylum Research's Fast Force Mapping mode in relation to the mechanical changes in HOPG during lithium deposition. [1] J. Phys. Chem. C 2011, 115, 25484*25489. [2] ACS Appl. Mater.Interfaces 2015, 7, 25441*25447
Keywords: atomic force microscopy; batteries; liquid electrolyte; lithium dendrites