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Parameterization and Validation of an Electrochemical Thermal Model of a Lithium-Ion Battery
Article

The Impact of Environmental Factors on the Thermal Characteristic of a Lithium–ion Battery

DLR Institute of Networked Energy Systems, 26123 Oldenburg, Germany
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Batteries 2020, 6(1), 3; https://doi.org/10.3390/batteries6010003
Received: 29 November 2019 / Revised: 23 December 2019 / Accepted: 30 December 2019 / Published: 2 January 2020
(This article belongs to the Special Issue Thermal Characteristics of Batteries 2019)
To draw reliable conclusions about the thermal characteristic of or a preferential cooling strategy for a lithium–ion battery, the correct set of thermal input parameters and a detailed battery layout is crucial. In our previous work, an electrochemical model for a commercially-available, 40 Ah prismatic lithium–ion battery was validated under heuristic temperature dependence. In this work the validated electrochemical model is coupled to a spatially resolved, three dimensional (3D), thermal model of the same battery to evaluate the thermal characteristics, i.e., thermal barriers and preferential heat rejection patterns, within common environment layouts. We discuss to which extent the knowledge of the batteries’ interior layout can be constructively used for the design of an exterior battery thermal management. It is found from the study results that: (1) Increasing the current rate without considering an increased heat removal flux at natural convection at higher temperatures will lead to increased model deviations; (2) Centralized fan air-cooling within a climate chamber in a multi cell test arrangement can lead to significantly different thermal characteristics at each battery cell; (3) Increasing the interfacial surface area, at which preferential battery interior and exterior heat rejection match, can significantly lower the temperature rise and inhomogeneity within the electrode stack and increase the batteries’ lifespan. View Full-Text
Keywords: lithium–ion battery; battery modeling; electrochemical–thermal model; finite element method; model parameterization; model validation; thermal performance analysis; battery thermal management system; cooling strategies lithium–ion battery; battery modeling; electrochemical–thermal model; finite element method; model parameterization; model validation; thermal performance analysis; battery thermal management system; cooling strategies
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MDPI and ACS Style

Liebig, G.; Kirstein, U.; Geißendörfer, S.; Schuldt, F.; Agert, C. The Impact of Environmental Factors on the Thermal Characteristic of a Lithium–ion Battery. Batteries 2020, 6, 3. https://doi.org/10.3390/batteries6010003

AMA Style

Liebig G, Kirstein U, Geißendörfer S, Schuldt F, Agert C. The Impact of Environmental Factors on the Thermal Characteristic of a Lithium–ion Battery. Batteries. 2020; 6(1):3. https://doi.org/10.3390/batteries6010003

Chicago/Turabian Style

Liebig, Gerd, Ulf Kirstein, Stefan Geißendörfer, Frank Schuldt, and Carsten Agert. 2020. "The Impact of Environmental Factors on the Thermal Characteristic of a Lithium–ion Battery" Batteries 6, no. 1: 3. https://doi.org/10.3390/batteries6010003

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