SFB 1073 Atomic scale control of energy conversion

C05 Spatially resolved in-situ investigation of electro-chemical processes at internal interfaces (Nowak, Volkert)

The project aims to determine the exact reaction path involved in the polaron-coupled lithiation of model transition metal oxides using in-situ transmission electron microscopy and post-mortem atom probe tomography. It focuses on the interdependence of electron transfer and structural changes in this type of charge-mediated reaction and aims to relate the underlying microscopic mechanisms to the corresponding electrochemical potentials.

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Fig. 1: Atom probe tomography reconstruction showing Li depleted region in Lithium-Manangese-Oxide. Each atom is represented by a sphere according to the given color code.

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