Details
| Original language | English |
|---|---|
| Pages (from-to) | 599-602 |
| Number of pages | 4 |
| Journal | Chemie-Ingenieur-Technik |
| Volume | 94 |
| Issue number | 4 |
| Early online date | 10 Nov 2021 |
| Publication status | Published - 22 Mar 2022 |
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.
Keywords
- Battery management system, Impedance spectroscopy, Lithium-ion cells, Under load
ASJC Scopus subject areas
Sustainable Development Goals
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In: Chemie-Ingenieur-Technik, Vol. 94, No. 4, 22.03.2022, p. 599-602.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On-Load Impedance Measurements on Automotive Lithium-Ion Cells
AU - Calles, Simon
AU - Ulke, Jakob
AU - Heitjans, Paul
AU - Börger, Alexander
N1 - Funding Information: We thank Kratzer Automation for technical support and Kenny Hülsebusch, Hagen Märtens, Sarah Wipperfürth and Jan-Niklas Knocke for technical assistance in mounting the samples.
PY - 2022/3/22
Y1 - 2022/3/22
N2 - 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.
AB - 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.
KW - Battery management system
KW - Impedance spectroscopy
KW - Lithium-ion cells
KW - Under load
UR - http://www.scopus.com/inward/record.url?scp=85118769329&partnerID=8YFLogxK
U2 - 10.1002/cite.202100061
DO - 10.1002/cite.202100061
M3 - Article
AN - SCOPUS:85118769329
VL - 94
SP - 599
EP - 602
JO - Chemie-Ingenieur-Technik
JF - Chemie-Ingenieur-Technik
SN - 0009-286X
IS - 4
ER -