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URN to cite this document: urn:nbn:de:bvb:703-epub-8998-5
Title data
Schamel, Maximilian ; Knorr, Julian ; Kinberger, Andrea ; Danzer, Michael A.:
Blend Electrodes in Lithium-Ion Batteries : Investigation of Inhomogeneities Using a Spatially Resolved Transmission Line Model.
In: Batteries & Supercaps.
Vol. 8
(2025)
Issue 11
.
- e202500147.
ISSN 2566-6223
DOI der Verlagsversion: https://doi.org/10.1002/batt.202500147
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Abstract
Blend electrodes are used in lithium-ion batteries to increase the performance by combining two active materials, such as silicon (Si) or silicon oxide (SiOx) and graphite (Gr), for the negative electrode. In-depth knowledge of the complex interactions between the materials is essential to understand how inhomogeneities and local peaks of the intercalation current arise and how they can be prevented. This work presents a spatially resolved transmission line model developed to describe the electrochemical behavior of blend electrodes. Parameterization and model validation are carried out for a Gr/SiOx anode. Simulation results are used to investigate inhomogeneities in local states during lithiation at different C-rates. A special focus is put on stress indicators as precursors for accelerated ageing like local material-specific C-rates and spatial gradients of the degree of lithiation. Thus, the modeling approach is a tool for both the description of the properties of blend electrodes and for simulation-based balancing of the active materials’ capacities within blend electrodes.
Further data
| Item Type: | Article in a journal |
|---|---|
| Keywords: | blend electrode; inhomogeneities; lithium-ion battery; stress; transmission line model |
| DDC Subjects: | 600 Technology, medicine, applied sciences 600 Technology, medicine, applied sciences > 620 Engineering |
| Institutions of the University: | Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Electrical Energy Systems Faculties > Faculty of Engineering Science > Chair Electrical Energy Systems > Chair Electrical Energy Systems - Univ.-Prof. Dr.-Ing. Michael Danzer Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt Research Institutions Research Institutions > Central research institutes |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-8998-5 |
| Date Deposited: | 17 Mar 2026 16:10 |
| Last Modified: | 17 Mar 2026 16:12 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/8998 |
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