Laminar burning velocity of the dimethyl carbonate–air mixture formed by the Li-ion electrolyte solvent

Author
Henriksen, Mathias
Vågsæther, Knut
Gaathaug, Andre Vagner
Lundberg, Joachim
Forseth, Sissel
Bjerketvedt, Dag
Date Issued
2020-08-21
Keywords
Li-ionbatterier
Forbrenning
Forbrenningsgasser
Permalink
http://hdl.handle.net/20.500.12242/2845
DOI
10.1134/S0010508220040024
Collection
Articles
Description
Henriksen, Mathias; Vågsæther, Knut; Gaathaug, Andre Vagner; Lundberg, Joachim; Forseth, Sissel; Bjerketvedt, Dag. Laminar burning velocity of the dimethyl carbonate–air mixture formed by the Li-ion electrolyte solvent. Combustion, explosion, and shock waves 2020 ;Volum 56.(4) s. 383-393
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Abstract
If a Li-ion cell fails and the electrolyte leaks out into air, a flammable premixed gas cloud can be formed. The electrolyte combustion energy is 65–70% of the total energy content of the cell. The main objective of this study is to determine the laminar burning velocity and the Markstein length for dimethyl carbonate and propane in a 20-liter explosion sphere with initial conditions at 100 kPa and 300 K. Five different stretch extrapolation models for the laminar burning velocity give practically the same result. The experimental results agree well with the previously published data and are slightly lower than the theoretical predictions. The laminar burning velocity for dimethyl carbonate is measured close to the saturation point under the initial conditions, which has not been previously reported.
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