A5089928282- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Advanced Battery Technologies Research
- Fuel Cells and Related Materials
- Extraction and Separation Processes
- Magnetic and transport properties of perovskites and related materials
- Thermal Expansion and Ionic Conductivity
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Semiconductor materials and devices
- Advanced Condensed Matter Physics
- Rare-earth and actinide compounds
- Electrocatalysts for Energy Conversion
- Physics and Engineering Research Articles
- Zeolite Catalysis and Synthesis
- Nuclear Materials and Properties
- Semiconductor materials and interfaces
- Solid-state spectroscopy and crystallography
- Supercapacitor Materials and Fabrication
- Advanced materials and composites
- Ferroelectric and Piezoelectric Materials
- Anodic Oxide Films and Nanostructures
- Advanced ceramic materials synthesis
Forschungszentrum Jülich
2015-2024
Jülich Aachen Research Alliance
2016-2023
Helmholtz-Institute Münster
2018-2023
Stadtwerke Jülich (Germany)
2012-2019
Instituto de Pesquisas Energéticas e Nucleares
2017
National Nuclear Energy Commission
2017
University of Cologne
1998-2002
Al-contaminated Ta-substituted Li7La3Zr2O12 (LLZ:Ta), synthesized via solid-state reaction, and Al-free Li7La3Zr2O12, fabricated by hot-press sintering (HP-LLZ:Ta), have relative densities of 92.7% 99.0%, respectively. Impedance spectra show the total conductivity LLZ:Ta to be 0.71 mS cm–1 at 30 °C that HP-LLZ:Ta 1.18 cm–1. The lower for than was attributed higher grain boundary resistance density LLZ:Ta, as confirmed their microstructures. Constant direct current measurements with a 0.5 mA...
The reactivity of mixtures high voltage spinel cathode materials Li2NiMn3O8, Li2FeMn3O8, and LiCoMnO4 cosintered with Li1.5Al0.5Ti1.5(PO4)3 Li6.6La3Zr1.6Ta0.4O12 electrolytes is studied by thermal analysis using X-ray-diffraction differential thermoanalysis thermogravimetry coupled mass spectrometry. results are compared predicted decomposition reactions from first-principles calculations. Decomposition the begins at 600 °C, significantly lower than temperature any component, especially...
Bulk-type SSLB based on LLZ:Ta achieves high specific areal capacity and operational current densities.
The development of high-capacity, high-performance all-solid-state batteries requires the specific design and optimization its components, especially on positive electrode side. For first time, we were able to produce a completely inorganic mixed consisting only LiCoO2 Ta-substituted Li7La3Zr2O12 (LLZ:Ta) without use additional sintering aids or conducting additives, which has high theoretical capacity density 1 mAh/cm2. A true cell composed Li metal negative electrode, LLZ:Ta garnet...
Owing to improved safety, all-solid-state batteries based on the garnet Ta-substituted Li7La3Zr2O12 solid electrolyte are promising alternatives conventional Li-ion with organic electrolytes. However, date, viability of such is uncertain because their performance limited by problematic electrode–electrolyte interface. Herein, we report use Si anodes facilitated enhancement this Before depositing as a thin film electrode (50 nm) smooth surface electrolyte, treated argon plasma etching reduce...
We have measured specific heat, magnetization, and electrical transport properties of ${\mathrm{La}}_{0.875}{\mathrm{Sr}}_{0.125}\ensuremath{-}{\mathrm{MnO}}_{3}$ single crystals in magnetic fields up to 14 T. In addition a ferromagnetic transition two structural phase transitions are observed with one the latter associated charge ordering. The low temperature ordered state is found be stabilized by an applied field, what cannot understood within scope double exchange mechanism, but only...
The electrical transport properties of grain boundaries in the epitaxial La2/3Ca1/3MnO3 − δ thin films have been studied as a function temperature and applied magnetic field. Below Curie TC an additional boundary resistance, highly non-linear current-voltage curves, large magnetoresistive effect whole regime below are found. results can be explained consistently by presence disordered, few nm wide paramagnetic layer that is depleted due to increase work ferromagnetic material adjacent this...
Investigating thermal material properties such as conductivity ( κ ), specific heat capacity C p ) and decomposition temperature of Ta- Al-substituted solid state electrolyte Li 7 La 3 Zr 2 O 12 (LLZO) in dependency grain size.