Regensburg 2025 – scientific programme
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O: Fachverband Oberflächenphysik
O 35: Poster Solid-Liquid Interfaces: Structure
O 35.4: Poster
Tuesday, March 18, 2025, 13:30–15:30, P3
In situ electrochemical atomic force microscopy studies of a copper surface during lithium plating and dissolution — •Luca Kaufer1,2, Daniel Ebeling1, Thomas Göddenhenrich1, 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 copper electrodes. In particular, the focus is on the deposition of lithium on copper surfaces, a crucial process in lithium batteries. Atomic force microscopy (AFM) measurements allow for precise analysis of the surface structure, morphology and dynamic changes during lithium deposition, thereby providing deeper insights into the mechanisms of electrode 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 include an examination of the modification of the single-crystal electrode surface, which has been achieved through the utilisation of a bespoke methodology that integrates sputtering, annealing and polishing techniques.
[1] J. Phys. Chem. C 2023, 127, 12492-12501. [2] Faraday Discuss, 2022, 233, 190.
Keywords: atomic force microscopy; batteries; liquid electrolyte; lithium dendrites