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**Harvard**

Anderson, J., Larsson, F., Andersson, P. och Mellander, B. (2015) *Thermal modeling of fire propagation in lithium-ion batteries*.

** BibTeX **

@conference{

Anderson2015,

author={Anderson, Johan and Larsson, Fredrik and Andersson, Petra and Mellander, Bengt-Erik},

title={Thermal modeling of fire propagation in lithium-ion batteries},

booktitle={The 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). Gothenburg, Sweden on June 8-11, 2015},

abstract={The objective of the present work is to assess the risk of spreading of fire between Lithium-ion battery cells
initiated by a thermal runaway. In particular it aims at developing means to predict the temperature of cells in
the vicinity of an overheated cell during the first 5-7 minutes after the thermal event in a Li-ion cell that has an
organic based electrolyte which is flammable. Finite-Element (FE) modelling is used to compute the heat
transfer between cells. The spreading model is assessed modeling a scenario where the cells are exposed to a
15 kW propane burner. Two different models where utilized, one that considers the conjugate heat transfer
between the surrounding hot gases and the battery cells while the second is a thermal model where the
boundary conditions are measured in a mock-up test. The results from the two models are contrasted to
experimental data where the heat release rate (HRR) is utilized as an input to the simulation. It is found that
the temperature increase in a neighboring cell can be quantitatively estimated in certain cases during the early
stages of the fire taking into account the anisotropic thermal conductivity of the cells using the conjugate heat
transfer model. Moreover, the thermal model captures the qualitative behavior of the test results, however, the
temperature increase is slower in the computational model. },

year={2015},

keywords={ lithium-ion, battery, fire, propagation, thermal model, thermal runaway },

}

** RefWorks **

RT Conference Proceedings

SR Electronic

ID 220754

A1 Anderson, Johan

A1 Larsson, Fredrik

A1 Andersson, Petra

A1 Mellander, Bengt-Erik

T1 Thermal modeling of fire propagation in lithium-ion batteries

YR 2015

T2 The 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). Gothenburg, Sweden on June 8-11, 2015

AB The objective of the present work is to assess the risk of spreading of fire between Lithium-ion battery cells
initiated by a thermal runaway. In particular it aims at developing means to predict the temperature of cells in
the vicinity of an overheated cell during the first 5-7 minutes after the thermal event in a Li-ion cell that has an
organic based electrolyte which is flammable. Finite-Element (FE) modelling is used to compute the heat
transfer between cells. The spreading model is assessed modeling a scenario where the cells are exposed to a
15 kW propane burner. Two different models where utilized, one that considers the conjugate heat transfer
between the surrounding hot gases and the battery cells while the second is a thermal model where the
boundary conditions are measured in a mock-up test. The results from the two models are contrasted to
experimental data where the heat release rate (HRR) is utilized as an input to the simulation. It is found that
the temperature increase in a neighboring cell can be quantitatively estimated in certain cases during the early
stages of the fire taking into account the anisotropic thermal conductivity of the cells using the conjugate heat
transfer model. Moreover, the thermal model captures the qualitative behavior of the test results, however, the
temperature increase is slower in the computational model.

LA eng

LK http://www-esv.nhtsa.dot.gov/proceedings/24/files/24ESV-000073.PDF

LK http://publications.lib.chalmers.se/records/fulltext/220754/local_220754.pdf

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