On-Load Impedance Measurements on Automotive Lithium-Ion Cells
- authored by
- Simon Calles, Jakob Ulke, Paul Heitjans, Alexander Börger
- Abstract
The contribution presents examples for electrochemical impedance spectroscopy data taken on automotive lithium-ion battery cells. Discharge was done with the help of an external load. The measurements were done with an initial state of charge of about 97 %, at 23 °C and from 5000–0.1 Hz. Spectra were fitted with an equivalent circuit containing two RC elements and an inductance. For load currents up to 20 A and in certain regions of the used frequency range, it is possible to measure impedance spectra also under load that almost coincide with load-free spectra.
- Organisation(s)
-
Institute of Physical Chemistry and Electrochemistry
- External Organisation(s)
-
Volkswagen AG
- Type
- Article
- Journal
- Chemie-Ingenieur-Technik
- Volume
- 94
- Pages
- 599-602
- No. of pages
- 4
- ISSN
- 0009-286X
- Publication date
- 22.03.2022
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- General Chemistry, General Chemical Engineering, Industrial and Manufacturing Engineering
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1002/cite.202100061 (Access:
Closed)
