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Laue, Vincent ; Wolff, Nicolas ; Röder, Fridolin ; Krewer, Ulrike:
Modeling the Influence of Mixing Strategies on Microstructural Properties of All‐Solid‐State Electrodes.
In: Energy Technology.
Bd. 8
(2020)
Heft 2
.
- 1801049.
ISSN 2194-4296
DOI: https://doi.org/10.1002/ente.201801049
Abstract
All‐solid‐state batteries currently have the disadvantage of low conductivity of the solid electrolytes (SEs) at room temperature and have issues with nonutilized active material (AM) and high reaction overpotentials due to a low SE/AM interface area. These limitations are partially due to the material properties because of the complex, yet nonoptimal production process. Therefore, a model‐based investigation of the influence of microstructural properties on the electronic and ionic conductivities of all‐solid‐state electrodes is conducted. The objective of this work is to highlight the optimization potential of the mixing and premixing of AM, SE, and conducting additive. The results show that the premixing of AM and conducting additives increases the effective electronic conductivity compared with that of the nonpremixed electrodes. It allows a significantly lower additive volume fraction as the percolation threshold of the conducting additive network reaches earlier. Conducting additives are shown to decrease the effective ionic conductivity by increasing the tortuosity of the microstructures, an effect which can be reduced by premixing the conducting additive and SE.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften > Juniorprofessur Methoden des Batteriemanagements > Juniorprofessur Methoden des Batteriemanagements - Juniorprof. Dr.-Ing. Fridolin Röder Fakultäten > Fakultät für Ingenieurwissenschaften > Juniorprofessur Methoden des Batteriemanagements |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 20 Nov 2020 07:23 |
| Letzte Änderung: | 23 Nov 2023 10:43 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/59647 |