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Title:
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Online cellphone battery entropy measurement for SoH estimation
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Author:
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Cuadras Tomàs, Àngel; Meinert, Florian; Büschel, Paul; Kanoun, Olfa
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GRUP ISI - Grup d'Instrumentació, Sensors i Interfícies |
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Abstract:
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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. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
-Renewable energy sources
-Cellular telephones
-Aging of materials
-Electric batteries
-Energy dissipation
-Entropy
-Secondary batteries
-Telephone sets
-Wear of materials
-Battery
-Battery operation
-Damage
-Entropy generation rate
-Entropy measurement
-Irreversible energy
-Real-time operation
-State of health
-Energies renovables
-Bateries -- Carregadors
-Telèfon mòbil |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Share:
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