Details
| Original language | English |
|---|---|
| Article number | 110540 |
| Journal | Journal of the Electrochemical Society |
| Volume | 167 |
| Issue number | 11 |
| Publication status | Published - 21 Jul 2020 |
Abstract
Fast charging lithium ion cells with too high currents can cause lithium deposition at the negative electrode. To prevent this a method to determine the onset of lithium deposition based on locally resolved pressure and temperature measurements in a constrained test setup, for a given automotive lithium ion pouch cell is presented. The basic effect for pressure detection is volume increase caused by lithium deposition. For temperature measurement, the endothermic reaction behaviour of lithium deposition is exploited. An experimental study has been carried out to understand the fundamental cyclic pressure and temperature behaviour of the given cell. Additionally cell behaviour under so called lithium plating conditions is presented. Thereby inhomogeneous performance under lithium plating condition has been observed at the boundary areas. Based on experimental results an optimized fast charge protocol was developed and tested by cycling cells up to 100 cycles which shows a similar capacity retention in comparison to cycling tests with low charging current.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- Surfaces, Coatings and Films
- Chemistry(all)
- Electrochemistry
- Materials Science(all)
- Materials Chemistry
Sustainable Development Goals
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In: Journal of the Electrochemical Society, Vol. 167, No. 11, 110540, 21.07.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Investigation of Temperature and Pressure Behaviour of Constrained Lithium Ion Cell under Lithium Plating Conditions
AU - Hovestadt, L.
AU - Wildermann, K.
AU - Sahhary, A.
AU - Hanke-Rauschenbach, Richard
PY - 2020/7/21
Y1 - 2020/7/21
N2 - Fast charging lithium ion cells with too high currents can cause lithium deposition at the negative electrode. To prevent this a method to determine the onset of lithium deposition based on locally resolved pressure and temperature measurements in a constrained test setup, for a given automotive lithium ion pouch cell is presented. The basic effect for pressure detection is volume increase caused by lithium deposition. For temperature measurement, the endothermic reaction behaviour of lithium deposition is exploited. An experimental study has been carried out to understand the fundamental cyclic pressure and temperature behaviour of the given cell. Additionally cell behaviour under so called lithium plating conditions is presented. Thereby inhomogeneous performance under lithium plating condition has been observed at the boundary areas. Based on experimental results an optimized fast charge protocol was developed and tested by cycling cells up to 100 cycles which shows a similar capacity retention in comparison to cycling tests with low charging current.
AB - Fast charging lithium ion cells with too high currents can cause lithium deposition at the negative electrode. To prevent this a method to determine the onset of lithium deposition based on locally resolved pressure and temperature measurements in a constrained test setup, for a given automotive lithium ion pouch cell is presented. The basic effect for pressure detection is volume increase caused by lithium deposition. For temperature measurement, the endothermic reaction behaviour of lithium deposition is exploited. An experimental study has been carried out to understand the fundamental cyclic pressure and temperature behaviour of the given cell. Additionally cell behaviour under so called lithium plating conditions is presented. Thereby inhomogeneous performance under lithium plating condition has been observed at the boundary areas. Based on experimental results an optimized fast charge protocol was developed and tested by cycling cells up to 100 cycles which shows a similar capacity retention in comparison to cycling tests with low charging current.
UR - http://www.scopus.com/inward/record.url?scp=85091308814&partnerID=8YFLogxK
U2 - 10.1149/1945-7111/aba550
DO - 10.1149/1945-7111/aba550
M3 - Article
AN - SCOPUS:85091308814
VL - 167
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 11
M1 - 110540
ER -