Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions

In this work, three-dimensional thermal simulations of single 18650 lithium-ion battery cell and 75 V lithium-ion battery pack composed of 21 18650 battery cells are performed based on a multi-scale multi-domain (MSMD) battery modeling approach. Different cooling approaches’ effects on 18650 lithium...

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Autores principales:	Yang Li, Zhifu Zhou, Jian Zhao, Liang Hao, Minli Bai, Yulong Li, Xuanyu Liu, Yubai Li, Yongchen Song
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	lithium-ion battery thermal modeling cooling multi-scale multi-domain model external short circuit Technology T
Acceso en línea:	https://doaj.org/article/f5cf1a1ab0e2470fa51ca98bb0e518d6
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spelling	oai:doaj.org-article:f5cf1a1ab0e2470fa51ca98bb0e518d62021-11-11T15:48:20ZThree-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions10.3390/en142169861996-1073https://doaj.org/article/f5cf1a1ab0e2470fa51ca98bb0e518d62021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6986https://doaj.org/toc/1996-1073In this work, three-dimensional thermal simulations of single 18650 lithium-ion battery cell and 75 V lithium-ion battery pack composed of 21 18650 battery cells are performed based on a multi-scale multi-domain (MSMD) battery modeling approach. Different cooling approaches’ effects on 18650 lithium-ion battery and battery pack thermal management under fast discharging and external shorting conditions are investigated and compared. It is found that for the natural convection, forced air cooling, and/or mini-channel liquid cooling approaches, the temperature of battery cell easily exceeds 40 °C under 3C rate discharging condition. While under external shorting condition, the temperature of cell rises sharply and reaches the 80 °C in a short period of time, which can trigger thermal runaway and may even lead to catastrophic battery fire. On the other hand, when the cooling method is single-phase direct cooling with FC-72 as coolant or two-phase immersed cooling by HFE-7000, the cell temperature is effectively limited to a tolerable level under both high C rate discharging and external shorting conditions. In addition, two-phase immersed cooling scheme is found to lead to better temperature uniformity according to the 75 V battery pack simulations.Yang LiZhifu ZhouJian ZhaoLiang HaoMinli BaiYulong LiXuanyu LiuYubai LiYongchen SongMDPI AGarticlelithium-ion batterythermal modelingcoolingmulti-scale multi-domain modelexternal short circuitTechnologyTENEnergies, Vol 14, Iss 6986, p 6986 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lithium-ion battery thermal modeling cooling multi-scale multi-domain model external short circuit Technology T
spellingShingle	lithium-ion battery thermal modeling cooling multi-scale multi-domain model external short circuit Technology T Yang Li Zhifu Zhou Jian Zhao Liang Hao Minli Bai Yulong Li Xuanyu Liu Yubai Li Yongchen Song Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
description	In this work, three-dimensional thermal simulations of single 18650 lithium-ion battery cell and 75 V lithium-ion battery pack composed of 21 18650 battery cells are performed based on a multi-scale multi-domain (MSMD) battery modeling approach. Different cooling approaches’ effects on 18650 lithium-ion battery and battery pack thermal management under fast discharging and external shorting conditions are investigated and compared. It is found that for the natural convection, forced air cooling, and/or mini-channel liquid cooling approaches, the temperature of battery cell easily exceeds 40 °C under 3C rate discharging condition. While under external shorting condition, the temperature of cell rises sharply and reaches the 80 °C in a short period of time, which can trigger thermal runaway and may even lead to catastrophic battery fire. On the other hand, when the cooling method is single-phase direct cooling with FC-72 as coolant or two-phase immersed cooling by HFE-7000, the cell temperature is effectively limited to a tolerable level under both high C rate discharging and external shorting conditions. In addition, two-phase immersed cooling scheme is found to lead to better temperature uniformity according to the 75 V battery pack simulations.
format	article
author	Yang Li Zhifu Zhou Jian Zhao Liang Hao Minli Bai Yulong Li Xuanyu Liu Yubai Li Yongchen Song
author_facet	Yang Li Zhifu Zhou Jian Zhao Liang Hao Minli Bai Yulong Li Xuanyu Liu Yubai Li Yongchen Song
author_sort	Yang Li
title	Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
title_short	Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
title_full	Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
title_fullStr	Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
title_full_unstemmed	Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions
title_sort	three-dimensional thermal simulations of 18650 lithium-ion batteries cooled by different schemes under high rate discharging and external shorting conditions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f5cf1a1ab0e2470fa51ca98bb0e518d6
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Three-Dimensional Thermal Simulations of 18650 Lithium-Ion Batteries Cooled by Different Schemes under High Rate Discharging and External Shorting Conditions

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