Dresden 2026 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 4: Energy Storage Materials and Devices I
CPP 4.6: Vortrag
Montag, 9. März 2026, 11:00–11:15, ZEU/0255
Unveiling the Interfacial Behavior of Lithium Batteries by Operando X-ray Scattering — •Yuxin Liang1, Fabian Apfelbeck1, Kun Sun1, Yingying Yan1, Lyuyang Cheng1, Guangjiu Pan1, Tianle Zheng1, Yajun Cheng2, Anton Davydok3, Christina Krywka3, and Peter Müller-Buschbaum1 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2College of Renewable Energy, Hohai University, Changzhou, China — 3Helmholtz-Zentrum Hereon, Geesthacht, Germany
Poly(ethylene oxide) based solid composite electrolytes suffer from poor conductivity and lithium dendrite growth, especially toward the metallic lithium metal anode. In our recent work, we focus on the fabrication and comprehensive characterization of performance-enhanced PEO-based composite electrolytes for lithium batteries. Advanced nano-focus X-ray scattering techniques were used to investigate the interfacial behavior within the lithium metal battery, as well as its failure mechanisms. With the modification of plasticizer, the electrolyte exhibit good electrochemical performance and interfacial compatibility. However, the reference electrolyte exhibit early dendrite formation from the lithium surface into the electrolyte, leading to persistent structures that degrade performance. The results highlight the potential of these fabrication and analysis methods, demonstrating their application in advancing lithium battery technologies and contributing to the development of cutting-edge characterization techniques.
Keywords: lithium battery; all-solid-state; operando; X-ray scattering