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Erschienen in:

23.11.2022

Study on the Blocking Effect of Aerogel Felt Thickness on Thermal Runaway Propagation of Lithium-Ion Batteries

verfasst von: Quanyi Liu, Qian Zhu, Wentian Zhu, Xiaoying Yi

Erschienen in: Fire Technology | Ausgabe 2/2023

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Abstract

There is a poor blocking effect of the paper diaphragm used in the transportation package of lithium-ion batteries. Hence, researches on barrier materials are necessary. In this study, the thermal runaway (TR) was triggered by a heating rod and propagated horizontally between battery packs, and the tests were conducted in a self-designed chamber to investigate the blocking effect of aerogel felt thickness on the TR propagation of 18,650 lithium-ion batteries with 30% SOC and 100% SOC. And a simplified model of TR propagation was established to illustrate the heat propagation between batteries. The results showed that when the barrier thickness of aerogel felt increased from 1 to 10 mm, the number of batteries with TR decreased, the total heat release rate (THR) triggering time was longer, and the blocking effect of TR propagation was better. Besides, the aerogel felt the thickness of 1 mm had a poor effect on the prevention and control of TR, and there was a threshold between the barrier thickness of 6 mm and 10 mm to prevent TR. Simultaneously, there was a slight fluctuation in the parameters of heat release rate (HRR), battery surface temperature, and peak concentrations of CO and CO2. And the concentrations of O2, CO2, and CO are related to the SOC and the number of TR of lithium-ion batteries. When the thickness of aerogel felt increased to a certain value, the difference between mass loss and the force effect produced by TR will be smaller, and the THR will be more. These results provide valuable proposals and inspiration for packaging in civil aviation transportation.

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Literatur
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Zurück zum Zitat FAA SAFO (2021) Federal aviation administration. Li-Batt. Thermal events April to date.pdf (faa.gov). Accessed 6 May 2021 FAA SAFO (2021) Federal aviation administration. Li-Batt. Thermal events April to date.pdf (faa.gov). Accessed 6 May 2021
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Zurück zum Zitat Forestier C, Lecocq A, Zantman A, Grugeon S, Sannier L, Marlair G, Laruelle S (2020) Study of the role of LiNi1/3Mn1/3Co1/3O2/graphite li-ion pouch cells confinement, electrolyte composition and separator coating on thermal runaway and off-gas toxicity. J Electrochem Soc 167:090513. https://doi.org/10.1149/1945-7111/ab829eCrossRef Forestier C, Lecocq A, Zantman A, Grugeon S, Sannier L, Marlair G, Laruelle S (2020) Study of the role of LiNi1/3Mn1/3Co1/3O2/graphite li-ion pouch cells confinement, electrolyte composition and separator coating on thermal runaway and off-gas toxicity. J Electrochem Soc 167:090513. https://​doi.​org/​10.​1149/​1945-7111/​ab829eCrossRef
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Metadaten
Titel
Study on the Blocking Effect of Aerogel Felt Thickness on Thermal Runaway Propagation of Lithium-Ion Batteries
verfasst von
Quanyi Liu
Qian Zhu
Wentian Zhu
Xiaoying Yi
Publikationsdatum
23.11.2022
Verlag
Springer US
Erschienen in
Fire Technology / Ausgabe 2/2023
Print ISSN: 0015-2684
Elektronische ISSN: 1572-8099
DOI
https://doi.org/10.1007/s10694-022-01336-w

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