Applicability of heat generation data in determining the degradation mechanisms of cylindrical li-ion batteries

Murashko, K; Li, D; Danilov, DL; Notten, PHL; Pyrhönen, J; Jokiniemi, J

Applicability of heat generation data in determining the degradation mechanisms of cylindrical li-ion batteries

Murashko, K Li, D Danilov, DL Notten, PHL Pyrhönen, J Jokiniemi, J

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Publisher:: The Electrochemical Society
Publication Type:: Journal Article
Citation:: Journal of the Electrochemical Society, 2021, 168, (1), pp. 010511
Issue Date:: 2021-01-01

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Field	Value	Language
dc.contributor.author	Murashko, K
dc.contributor.author	Li, D
dc.contributor.author	Danilov, DL
dc.contributor.author	Notten, PHL
dc.contributor.author	Pyrhönen, J
dc.contributor.author	Jokiniemi, J
dc.date.accessioned	2022-01-14T05:56:37Z
dc.date.available	2022-01-14T05:56:37Z
dc.date.issued	2021-01-01
dc.identifier.citation	Journal of the Electrochemical Society, 2021, 168, (1), pp. 010511
dc.identifier.issn	0013-4651
dc.identifier.issn	1945-7111
dc.identifier.uri	http://hdl.handle.net/10453/153127
dc.description.abstract	The applicability of heat generation data obtained after cylindrical Li-ion cells discharging with a constant current was analyzed thoroughly to determine cell degradation mechanisms. Different commercial and noncommercial cylindrical Li-ion cells, wherein graphite was used for negative electrode creation, were considered in this study and the degradation mechanisms were analyzed during cycling and storage. The heat generation in the cylindrical cells was estimated using heat flux and temperature measurements of the cell surface. The results obtained using analysis of the heat generation data were compared with those obtained using differential voltage analysis. The use of the heat generation data was shown to improve the detection and separation of the degradation mechanisms in Li-ion batteries during cycling and storage. The differential curve, which is based on the heat generation data, was proposed to investigate the degradation mechanisms. Moreover, the effects of the C-rate current and temperature on the form of the proposed differential curve were evaluated.
dc.language	en
dc.publisher	The Electrochemical Society
dc.relation.ispartof	Journal of the Electrochemical Society
dc.relation.isbasedon	10.1149/1945-7111/abd832
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0306 Physical Chemistry (incl. Structural), 0912 Materials Engineering
dc.subject.classification	Energy
dc.title	Applicability of heat generation data in determining the degradation mechanisms of cylindrical li-ion batteries
dc.type	Journal Article
utslib.citation.volume	168
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0306 Physical Chemistry (incl. Structural)
utslib.for	0912 Materials Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access	*
dc.date.updated	2022-01-14T05:56:36Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	168
utslib.citation.issue	1

Abstract:

The applicability of heat generation data obtained after cylindrical Li-ion cells discharging with a constant current was analyzed thoroughly to determine cell degradation mechanisms. Different commercial and noncommercial cylindrical Li-ion cells, wherein graphite was used for negative electrode creation, were considered in this study and the degradation mechanisms were analyzed during cycling and storage. The heat generation in the cylindrical cells was estimated using heat flux and temperature measurements of the cell surface. The results obtained using analysis of the heat generation data were compared with those obtained using differential voltage analysis. The use of the heat generation data was shown to improve the detection and separation of the degradation mechanisms in Li-ion batteries during cycling and storage. The differential curve, which is based on the heat generation data, was proposed to investigate the degradation mechanisms. Moreover, the effects of the C-rate current and temperature on the form of the proposed differential curve were evaluated.

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http://hdl.handle.net/10453/153127