Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell

In this study, an electrochemical-thermal coupled model was developed to investigate the electrical and thermal behaviors of the commercial NCR18650b Li-ion cell during three different discharge rates. The 1-dimensional electrochemical model consists of a positive electrode, electrolyte, and a negat...

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Autores principales:	Özdemir Tanılay, Ekici Özgür, Köksal Murat
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/65e496dc16b14669a2a5b1462aceec67
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spelling	oai:doaj.org-article:65e496dc16b14669a2a5b1462aceec672021-11-12T11:44:34ZNumerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell2267-124210.1051/e3sconf/202132103007https://doaj.org/article/65e496dc16b14669a2a5b1462aceec672021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_03007.pdfhttps://doaj.org/toc/2267-1242In this study, an electrochemical-thermal coupled model was developed to investigate the electrical and thermal behaviors of the commercial NCR18650b Li-ion cell during three different discharge rates. The 1-dimensional electrochemical model consists of a positive electrode, electrolyte, and a negative electrode and employs the related mass and charge transfer equations for both solid and liquid phases predicting the cell's voltage variation. The 3-dimensional thermal model involves a mandrel, an active battery part, and a shell. The thermal model solves the general heat diffusion equation and predicts the temperature variation of the cell. The results show that the predicted temperature-voltage profiles follow the same trend with experimental data and are consistent. The maximum calculated root mean square errors are obtained as 0.11 V for voltage, and 0.96 °C for temperature predictions. On the other hand, the maximum temperature differences within the cell was found to be 0.16 °C, 0.43 °C, and 1.29 °C after the 0.5 C, 1C and 1.5 C rate discharging processes, respectively. Finally, the results from the 3-dimensional thermal model reveal that the type of mandrel affects the temperature variation within the cell. However, the average surface temperature of the cell remains comparable for the investigated C rates.Özdemir TanılayEkici ÖzgürKöksal MuratEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 321, p 03007 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Özdemir Tanılay Ekici Özgür Köksal Murat Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
description	In this study, an electrochemical-thermal coupled model was developed to investigate the electrical and thermal behaviors of the commercial NCR18650b Li-ion cell during three different discharge rates. The 1-dimensional electrochemical model consists of a positive electrode, electrolyte, and a negative electrode and employs the related mass and charge transfer equations for both solid and liquid phases predicting the cell's voltage variation. The 3-dimensional thermal model involves a mandrel, an active battery part, and a shell. The thermal model solves the general heat diffusion equation and predicts the temperature variation of the cell. The results show that the predicted temperature-voltage profiles follow the same trend with experimental data and are consistent. The maximum calculated root mean square errors are obtained as 0.11 V for voltage, and 0.96 °C for temperature predictions. On the other hand, the maximum temperature differences within the cell was found to be 0.16 °C, 0.43 °C, and 1.29 °C after the 0.5 C, 1C and 1.5 C rate discharging processes, respectively. Finally, the results from the 3-dimensional thermal model reveal that the type of mandrel affects the temperature variation within the cell. However, the average surface temperature of the cell remains comparable for the investigated C rates.
format	article
author	Özdemir Tanılay Ekici Özgür Köksal Murat
author_facet	Özdemir Tanılay Ekici Özgür Köksal Murat
author_sort	Özdemir Tanılay
title	Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
title_short	Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
title_full	Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
title_fullStr	Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
title_full_unstemmed	Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
title_sort	numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/65e496dc16b14669a2a5b1462aceec67
work_keys_str_mv	AT ozdemirtanılay numericalandexperimentalinvestigationofthethermalandelectricalcharacteristicsofalithiumioncell AT ekiciozgur numericalandexperimentalinvestigationofthethermalandelectricalcharacteristicsofalithiumioncell AT koksalmurat numericalandexperimentalinvestigationofthethermalandelectricalcharacteristicsofalithiumioncell
_version_	1718430557086416896

Numerical and experimental investigation of the thermal and electrical characteristics of a lithium ion cell

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