A5019410204- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Corrosion Behavior and Inhibition
- Force Microscopy Techniques and Applications
- Thermal Expansion and Ionic Conductivity
- Electron and X-Ray Spectroscopy Techniques
- Fuel Cells and Related Materials
- Integrated Circuits and Semiconductor Failure Analysis
- Semiconductor materials and interfaces
Forschungszentrum Jülich
2016-2020
RWTH Aachen University
2016-2019
A ceramic solid-state electrolyte of lithium aluminum titanium phosphate with the composition Li[Formula: see text]Al[Formula: text]Ti[Formula: text](PO[Formula: text] (LATP) was synthesized by a sol–gel method using pre-dissolved Ti-source. The annealed LATP powders were subsequently processed in binder-free dry forming and sintered under air for pellet preparation. Phase purity, density, microstructure as well ionic conductivity specimen characterized. highest density (2.77[Formula:...
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...
Silicon (Si) has been regarded as one of the most promising anode materials to fulfill growing demand high performance lithium-ion batteries based on its specific capacity. However, Si is not yet capable replacing widely used graphite due solid–electrolyte interphase (SEI) formation and extreme volume expansion during lithiation. In this work, advanced in situ electrochemical atomic force microscopy applied track simultaneously topographical evolution mechanical properties thin-film...
Using lithium metal electrode for the next generation of Lithium Ion Batteries (LIB) possesses advantage high energy around 300 Wh/kg coupled with progressed cathode material [1]. However, formation dendrites and mossy under electrochemical load (cycling) are currently major hindrance a wider use such commercialization concept. Recently, aforementioned challenges have been analyzed by means nuclear magnetic resonance found [2]. Those formations lead to degradation processes which not yet...
The formation of the solid-electrolyte interphase (SEI) passivation layer on anode materials in lithium ion batteries (LIB) is not yet fully understood at micro- and nanometer scale. Therefore, experiments under realistic conditions with high spatial resolution are primary importance. Hence, atomic force microscopy (AFM) an ideal technique to study in-situ mechanisms electrode-electrolyte interface down (sub-) level. Within this contribution we present a combined AFM electrochemical (de-)...