Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells

Volck T, Sinz W, Gstrein G, Breitfuss C, Heindl S, Steffan H, Freunberger SA, Wilkening M, Uitz M, Fink C, Geier A. 2016. Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells. Batteries. 2(2), 8.

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Journal Article | Published | English
Author
Volck, Theo; Sinz, Wolfgang; Gstrein, Gregor; Breitfuss, Christoph; Heindl, Simon; Steffan, Hermann; Freunberger, Stefan AlexanderIST Austria ; Wilkening, Martin; Uitz, Marlena; Fink, Clemens; Geier, Alexander
Abstract
Within the scope of developing a multi-physical model describing battery behavior during and after the mechanical load (accelerations, intrusions) of a vehicle’s high voltage battery, an internal short circuit model is of deep interest for a virtual hazard assessment. The internal short resistance and the size of the affected area must be known as a minimum for determining the released heat and, in consequence, the temperatures. The internal short resistance of purpose-built dummy pouch cells, filled with electrolyte-like solvent without conductive salt, has thus been measured in a given short area under various compressive loads. The resistances for different short scenarios obtained are analyzed and described in a mathematical form. Short circuit experiments with dummy cells using an external power source have also been carried out. This set-up allows the measurement of the temperature evolution at a known current and a determination of the actual short resistance. The post-mortem analysis of the samples shows a correlation between the maximum temperatures, released short heat and the separator melt diameter.
Publishing Year
Date Published
2016-04-07
Journal Title
Batteries
Volume
2
Issue
2
Article Number
8
ISSN
IST-REx-ID

Cite this

Volck T, Sinz W, Gstrein G, et al. Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells. Batteries. 2016;2(2). doi:10.3390/batteries2020008
Volck, T., Sinz, W., Gstrein, G., Breitfuss, C., Heindl, S., Steffan, H., … Geier, A. (2016). Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells. Batteries. MDPI AG. https://doi.org/10.3390/batteries2020008
Volck, Theo, Wolfgang Sinz, Gregor Gstrein, Christoph Breitfuss, Simon Heindl, Hermann Steffan, Stefan Alexander Freunberger, et al. “Method for Determination of the Internal Short Resistance and Heat Evolution at Different Mechanical Loads of a Lithium Ion Battery Cell Based on Dummy Pouch Cells.” Batteries. MDPI AG, 2016. https://doi.org/10.3390/batteries2020008.
T. Volck et al., “Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells,” Batteries, vol. 2, no. 2. MDPI AG, 2016.
Volck T, Sinz W, Gstrein G, Breitfuss C, Heindl S, Steffan H, Freunberger SA, Wilkening M, Uitz M, Fink C, Geier A. 2016. Method for determination of the internal short resistance and heat evolution at different mechanical loads of a Lithium ion battery cell based on dummy pouch cells. Batteries. 2(2), 8.
Volck, Theo, et al. “Method for Determination of the Internal Short Resistance and Heat Evolution at Different Mechanical Loads of a Lithium Ion Battery Cell Based on Dummy Pouch Cells.” Batteries, vol. 2, no. 2, 8, MDPI AG, 2016, doi:10.3390/batteries2020008.

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