A5018102801- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Thermal Expansion and Ionic Conductivity
- Ion-surface interactions and analysis
- Advanced Battery Technologies Research
- Ferroelectric and Piezoelectric Materials
- Metal and Thin Film Mechanics
- Advanced battery technologies research
- Zeolite Catalysis and Synthesis
- Conducting polymers and applications
- Force Microscopy Techniques and Applications
- Plasma Diagnostics and Applications
Forschungszentrum Jülich
2017-2022
RWTH Aachen University
2017-2022
Stadtwerke Jülich (Germany)
2019
Polymer layers enhance the compatibility of LATP and electrodes, leading to superb cycling stability all-solid-state lithium batteries.
Abstract While intensive efforts have been devoted to studying the nature of solid-electrolyte interphase (SEI), little attention has paid understanding its role in mechanical failures electrodes. Here we unveil impact SEI inhomogeneities on early-stage defect formation Si Buried under SEI, these defects are inaccessible by most surface-probing techniques. With operando full field diffraction X-ray microscopy, observe real time and connect their origin a heterogeneous degree lithiation. This...
LiNi0.6Co0.2Mn0.2O2 (NCM622) undergoes crystallographic and electronic changes when charging discharging, which drive the cathode material close to or even beyond its stability window. To unravel charge compensation mechanism of NCM622, spatially resolved atomic force microscopy (AFM) measurements in electrochemical strain (ESM) conductive AFM (C-AFM) modes are obtained, spectroscopic information compared. All experiments performed with two sets samples: state-of-the-art samples that...
Abstract Even though advanced ceramics are widely applied as consumables in semiconductor etching processes, the erosion mechanisms and connected surface phenomena not fully understood. Through interaction with reactive species ion bombardment during plasma exposure, oxide ceramic materials like Y 2 O 3 eroded by a physicochemical mechanism. In this study, fundamental of surface‐plasma interactions were investigated directly at well near‐surface region after exposure to fluorine‐based...
Correlative microscopy has been used to investigate the relationship between Li-ion conductivity and microstructure of lithium aluminum titanium phosphate (Li1.3Al0.3Ti1.7(PO4)3, LATP) with high spatial resolution. A key improvement solid state electrolytes such as LATP is a better understanding interfacial ion transport properties on relevant length scales in nanometer micrometer range. Using common techniques, electrochemical impedance spectroscopy, only global information can be obtained....
Electrochemical strain microscopy (ESM) is a distinguished method to characterize Li-ion mobility in energy materials with extremely high spatial resolution. The exact origin of the cantilever deflection when technique applied on solid state electrolytes (SSEs) currently discussed literature. Understanding local properties and influences ion SSEs utmost importance improve such for next generation batteries. Here, signal formation process ESM sodium super ionic conductor (NASICON)-type SSE...