2026-08-17T12:11:11Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/113822026-02-18T01:05:45Zcom_10259_5822com_10259_5086com_10259_2604col_10259_5823

Santos, Carla S. Botz, Alexander Bandarenka, Aliaksandr S. Ventosa Arbaizar, Edgar Schuhmann, Wolfgang 2026-02-17T11:22:07Z 2026-02-17T11:22:07Z 2022-06 1433-7851 https://hdl.handle.net/10259/11382 10.1002/anie.202202744 1521-3773 The solid-electrolyte interphase (SEI) plays a key role in the stability of lithium-ion batteries as the SEI prevents the continuous degradation of the electrolyte at the anode. The SEI acts as an insulating layer for electron transfer, still allowing the ionic flux through the layer. We combine the feedback and multi-frequency alternating-current modes of scanning electrochemical microscopy (SECM) for the first time to assess quantitatively the local electronic and ionic properties of the SEI varying the SEI formation conditions and the used electrolytes in the field of Li-ion batteries (LIB). Correlations between the electronic and ionic properties of the resulting SEI on a model Cu electrode demonstrates the unique feasibility of the proposed strategy to provide the two essential properties of an SEI: ionic and electronic conductivity in dependence on the formation conditions, which is anticipated to exhibit a significant impact on the field of LIBs. The authors are grateful for financial support by the Euro-pean Union’s Horizon 2020 research and innovation pro-gramme under grant agreement NanoBat No 861962 as wellas to the Deutsche Forschungsgemeinschaft ((DFG, GermanResearch Foundation) under Germany‘s Excellence Strat-egy—EXC 2033-390677874—RESOLV. The authors thankMartin Trautmann for the AFM measurements. OpenAccess funding enabled and organized by Projekt DEAL. application/pdf eng Wiley Angewandte Chemie International Edition. 2022, V. 61, n. 26, p. e202202744 https://doi.org/10.1002/anie.202202744 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Química Química analítica Chemistry Chemistry, Analytic Correlative Electrochemical Microscopy for the Elucidation of the Local Ionic and Electronic Properties of the Solid Electrolyte Interphase in Li‐Ion Batteries info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Angewandte Chemie International Edition 61 26 e202202744