Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster I
CPP 17.27: Poster
Montag, 9. März 2026, 19:00–21:00, P5
In-situ WAXS observation of 3D porous electrodeposition Cu in lithium-metal batteries — •Lyuyang Cheng1, Zhuijun Xu1, Yingying Yan1, Fabian Apfelbeck1, Yuxin Liang1, Anton Davydok3, Christina Krywka3, Yajun Cheng2, and Peter Müller-buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 2Hohai University, 213022 Changzhou, China — 3Helmholtz-Zentrum Hereon, 21502 Geesthacht, Germany
Lithium (Li) metal is the ultimate anode for rechargeable batteries. Its high specific capacity (3860 mAh/kg) and low voltage warrant optimal cell energy density. However, these anodes rely on repeated plating and stripping of Li, which leads to consumption of Li and the growth of dendrites that can lead to self-discharge and safety issues. To address these issues and problems, a number of different porous conductive scaffolds have been reported to create high surface area electrodes on which Li can be plated reliably. While impressive results have been reported in literature, current processes typically rely on either expensive or poorly scalable techniques. Herein, we report a scalable fabrication method to create porous Cu anodes using a one-step electrodeposition process. The areal loading, pore structure, and electrode thickness can be tuned by changing the electrodeposition parameters, and we illustrate the in-situ nano WAXS images with lithium growth, which can help to explain the mechanism. We also provide a feasible method to fabricate the porous Cu cathodes with different electrodeposition solution concentrations.
Keywords: Electrodeposition; Lithium; Batteries; WAXS; Cu