Stefan Schindler
Karlsruhe Institute of Technology
11 Papers
21 Citations
Stefan Schindler is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Dielectric spectroscopy & Lithium. The author has an hindex of 8, co-authored 11 publications.
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Papers
Voltage relaxation and impedance spectroscopy as in-operando methods for the detection of lithium plating on graphitic anodes in commercial lithium-ion cells
TL;DR: In this article, voltage relaxation and impedance spectroscopy are introduced as in-operando methods for detecting lithium plating in commercial lithium-ion cells with graphitic anodes, which solely rely on nondestructive measurement quantities and thus are fully suitable for the application in battery management systems.
243
Distribution of Relaxation Times Analysis of High-Temperature PEM Fuel Cell Impedance Spectra
TL;DR: In this paper, the distribution of relaxation times (DRT) was successfully demonstrated in the analysis of the impedance spectra of high-temperature polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) doped with phosphoric acid.
183
Optimized Process Parameters for a Reproducible Distribution of Relaxation Times Analysis of Electrochemical Systems
TL;DR: In this article, a model-free approach for a detailed investigation of electrochemical impedance spectra has been proposed for a commercial Nickel-Manganese-Cobalt-Oxide (NMC) lithium-ion pouch cell.
131
A novel mechanistic modeling framework for analysis of electrode balancing and degradation modes in commercial lithium-ion cells
TL;DR: In this paper, a model-based, minimal parameter framework for combined elucidation of electrode balancing and degradation pathways in commercial lithium-ion cells is introduced, based upon the simulation of full cell voltage profiles from the superposition of equivalent, artificially degraded half-cell profiles and allows to separate aging contributions from loss of available lithium and active materials in both electrodes.
77
Insight into Sulfur Confined in Ultramicroporous Carbon.
M. Helen,Thomas Diemant,Stefan Schindler,R. Jürgen Behm,Michael A. Danzer,Ute Kaiser,Maximilian Fichtner,M. Anji Reddy +7 more
- 17 Sep 2018
TL;DR: Results indicate that sulfur in UMC exists as linear polymeric sulfur rather than smaller allotropes, and its electrochemical reaction mechanism with lithium with a single voltage plateau during the discharge/charge process is due to the effective separation of solvent molecules from the active material.