bei Google ScholarTitelangaben
Laue, Vincent ; Schmidt, Oke ; Dreger, Henning ; Xie, Xiangzhong ; Röder, Fridolin ; Schenkendorf, René ; Kwade, Arno ; Krewer, Ulrike:
Model‐Based Uncertainty Quantification for the Product Properties of Lithium‐Ion Batteries.
In: Energy Technology.
Bd. 8
(2020)
Heft 2
.
- 1900201.
ISSN 2194-4296
DOI: https://doi.org/10.1002/ente.201900201
Abstract
A model‐based uncertainty quantification (UQ) approach is applied to the manufacturing process of lithium‐ion batteries (LIB). Cell‐to‐cell deviations and the influence of sub‐cell level variations in the material and electrode properties of the cell performance are investigated experimentally and via modeling. The electrochemical battery model of the Doyle–Newman type is extended to cover the effect of sub‐cell deviation of product properties of the LIB. The applied model is parameterized and validated using a stacked pouch cell containing Li(Ni1/3Co1/3Mn1/3)O2 (NMC) and graphite (LixC6). It is integrated into a sampling‐based UQ framework. A nested point estimate method (PEM) is applied to a large number of independent normal distributed parameters. The simulations follow two consecutive nonideal manufacturing process steps: coating and calendering. The nested PEM provides a global sensitivity analysis that shows a change in sensitivity of the investigated parameters depending on the applied C‐rate. Furthermore, the sub‐cell level deviation of parameters in heterogeneous electrodes provokes a nonuniform current distribution in the cell. This alters the variance of the discharge capacity distribution. Therefore, sub‐cell deviation has to be considered to quantify process uncertainties. The applied method is feasible and highly efficient for this purpose.
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 07:15 |
| Letzte Änderung: | 23 Nov 2023 10:42 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/59645 |