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Simulation of burning velocities in gases vented from thermal run-a-way lithium ion batteries

Jonathan Johnsplass
University College of Southeast Norway, Porsgrunn, Norway

Mathias Henriksen
University College of Southeast Norway, Porsgrunn, Norway

Knut Vaagsaether
University College of Southeast Norway, Porsgrunn, Norway

Joachim Lundberg
University College of Southeast Norway, Porsgrunn, Norway

Dag Bjerketvedt
University College of Southeast Norway, Porsgrunn, Norway

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp17138157

Ingår i: Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th – 27th, 2017

Linköping Electronic Conference Proceedings 138:21, s. 157-161

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Publicerad: 2017-09-27

ISBN: 978-91-7685-417-4

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

This paper describes the results from simulations of laminar burning velocities in the premixed air and flammable gases vented from abused Li-ion batteries. The released mixture from such batteries contain mixtures of hydrogen, methane, ethylene, carbon monoxide and carbon dioxide. The study also includes the combustion properties of an electrolyte, dimethyl carbonate. The simulation results show the laminar burning velocities as a function of concentration, pressure and temperature for the gas mixtures and electrolyte. The goal of the present project is to use the simulated burning velocities in curve fitted functions for use in computational fluid dynamics (CFD) codes.

Nyckelord

Li-ion battery, Safety, Laminar burning velocity

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