2020
DOI: 10.1002/er.5140
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Abstract: Summary Numerical simulation is widely used in research and design of the battery thermal management system (BTMS). Battery cells are commonly homogenized to a block for module or pack level modeling. However, how the homogenization method affects results is not proven. This paper works on a hard‐cased Li‐ion battery to find a proper simplification method. First, a detailed three‐dimensional thermal model (model A) is set up and validated by experimental data. Then, the other three models with different simpli… Show more

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Cited by 7 publications
(4 citation statements)
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References 60 publications
(103 reference statements)
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“…The tab, the outer separator, and the pouch foil, respectively casing, are resolved in every simulation case, as it is necessary to increase accuracy. [ 13,15 ] The focus of this contribution is on the level of homogenization (LoH) of the cell stack. The most realistic representation of the inner structure of a cell stack on electrode level is to resolve each individual layer (FR model).…”
Section: Thermal Battery Modelmentioning
confidence: 99%
See 2 more Smart Citations
“…The tab, the outer separator, and the pouch foil, respectively casing, are resolved in every simulation case, as it is necessary to increase accuracy. [ 13,15 ] The focus of this contribution is on the level of homogenization (LoH) of the cell stack. The most realistic representation of the inner structure of a cell stack on electrode level is to resolve each individual layer (FR model).…”
Section: Thermal Battery Modelmentioning
confidence: 99%
“…This results in a high computing time, which will be discussed for the studies conducted in Section 3.3. Therefore, as already mentioned in Section 1, it is common to fully homogenize the cell stack (FH model) [ 13,14 ] and assign effective parameters according to the volumetric fraction for simulation (cf. Section 2.4).…”
Section: Thermal Battery Modelmentioning
confidence: 99%
See 1 more Smart Citation
“…As the measurement of the temperature within the cells still poses a great challenge and the effects of inline measurement devices on the electrical cell behavior are not yet fully understood, [14,15] modeling is crucial to estimate the core temperature of the cells. However, those models are based on a lot of assumptions like the homogenization of the transport properties of the whole battery stack [16][17][18] and the neglection of contact resistances. Moreover, they are difficult to validate [15] and DOI: 10.1002/ente.202300259…”
Section: Introductionmentioning
confidence: 99%