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Finite element modelling of lithium-ion battery fires on composite structures
The use of composite materials, for lightweighting, and lithium-ion batteries (LIB), for electrification, has expanded across the transportation industry. A common failure mechanism for LIBs is thermal runaway (TR), i.e. when a battery enters a state of uncontrolled, self-heating which can result in very high temperatures, smoke, and even battery fire. Battery fire containment is generally achieved with metallic structures, but to-date Carbon Fibre Reinforced Polymer (CFRP) containment structures have not been investigated. This paper presents Finite Element (FE) models to assess thermal and mechanical damage and failure during and after a lithium-ion battery (LIB) thermal runaway (TR) event impinging on a CFRP composite specimen. A loading approach is developed using published experimental data for a cylindrical 18650 LIB fire. A trio of sequential simulations including heat transfer, thermo-mechanical and Compression after Thermal Runaway (CaTR) models are linked with python scripts to transfer damage states. Results have shown, for unprotected specimens, the presence of thermal damage from a single cell runaway can potentially reduce the residual strength by 20%. Application of a 0.5 mm coating reduced the thermal damage area from 10,587 mm 2 to 1431 mm 2 .
Finite element modelling of lithium-ion battery fires on composite structures
The use of composite materials, for lightweighting, and lithium-ion batteries (LIB), for electrification, has expanded across the transportation industry. A common failure mechanism for LIBs is thermal runaway (TR), i.e. when a battery enters a state of uncontrolled, self-heating which can result in very high temperatures, smoke, and even battery fire. Battery fire containment is generally achieved with metallic structures, but to-date Carbon Fibre Reinforced Polymer (CFRP) containment structures have not been investigated. This paper presents Finite Element (FE) models to assess thermal and mechanical damage and failure during and after a lithium-ion battery (LIB) thermal runaway (TR) event impinging on a CFRP composite specimen. A loading approach is developed using published experimental data for a cylindrical 18650 LIB fire. A trio of sequential simulations including heat transfer, thermo-mechanical and Compression after Thermal Runaway (CaTR) models are linked with python scripts to transfer damage states. Results have shown, for unprotected specimens, the presence of thermal damage from a single cell runaway can potentially reduce the residual strength by 20%. Application of a 0.5 mm coating reduced the thermal damage area from 10,587 mm 2 to 1431 mm 2 .
Finite element modelling of lithium-ion battery fires on composite structures
Bond, Emily (Autor:in) / Sterling, James (Autor:in) / De Cola, Francesco (Autor:in) / McAleavy, Emer (Autor:in) / Murphy, Adrian (Autor:in) / Millen, Scott L. J. (Autor:in) / Binetruy, Christophe / Jacquemin, Frédéric
05.07.2024
Bond , E , Sterling , J , De Cola , F , McAleavy , E , Murphy , A & Millen , S L J 2024 , Finite element modelling of lithium-ion battery fires on composite structures . in C Binetruy & F Jacquemin (eds) , Proceedings of the 21st European Conference on Composite Materials, ECCM21 . vol. 3 , European Society for Composite Materials , 21st European Conference on Composite Materials 2024 , Nantes , France , 02/07/2024 .
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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