Online cellphone battery entropy measurement for SoH estimation

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor	Universitat Politècnica de Catalunya. GRUP ISI - Grup d'Instrumentació, Sensors i Interfícies
dc.contributor.author	Cuadras Tomàs, Àngel
dc.contributor.author	Meinert, Florian
dc.contributor.author	Büschel, Paul
dc.contributor.author	Kanoun, Olfa
dc.date	2016
dc.identifier.citation	Cuadras, A., Meinert, F., Büschel, P., Kanoun, O. Online cellphone battery entropy measurement for SoH estimation. A: International Multi-Conference on Systems, Signals and Devices. "Proceeding of 13th International Multi-Conference on Systems, Signals and Devices, SSD 2016". Leipzig: 2016, p. 258-261.
dc.identifier.citation	9781509012916
dc.identifier.citation	10.1109/SSD.2016.7473682
dc.identifier.uri	http://hdl.handle.net/2117/101970
dc.language.iso	eng
dc.relation	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7473682
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject	Renewable energy sources
dc.subject	Cellular telephones
dc.subject	Aging of materials
dc.subject	Electric batteries
dc.subject	Energy dissipation
dc.subject	Entropy
dc.subject	Secondary batteries
dc.subject	Telephone sets
dc.subject	Wear of materials
dc.subject	Battery
dc.subject	Battery operation
dc.subject	Damage
dc.subject	Entropy generation rate
dc.subject	Entropy measurement
dc.subject	Irreversible energy
dc.subject	Real-time operation
dc.subject	State of health
dc.subject	Energies renovables
dc.subject	Bateries -- Carregadors
dc.subject	Telèfon mòbil
dc.title	Online cellphone battery entropy measurement for SoH estimation
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	The widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are monitored in battery cells used in cellphones and in real-time operation. Irreversible entropy is estimated from irreversible energy dissipation in the battery for long periods of use. Simple open circuit battery voltage Uocv models were evaluated and compared to lab measured Uocv. It was found that the entropy generation rate is always increasing during battery operation and that irreversible entropy is a fingerprint of aging for batteries. © 2016 IEEE.
dc.description.abstract	Peer Reviewed

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