Título:
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Battery aging impedance spectroscopy and incremental capacity analysis
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Autor/a:
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Ovejas Benedicto, Victòria Júlia; Cuadras Tomàs, Àngel
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GRUP ISI - Grup d'Instrumentació, Sensors i Interfícies; Universitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits |
Abstract:
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We analize electrochemical LiFePO4 cells with impedance spectroscopy and incremental capacity analysis in order to establish a correlation with capacity fade. We found that polarization and diffusion impeances increased with aging, but at different rates depending on the aging stage. This aging stage dependence was also found in ICA analyzes, where the lithium intercalation was investigated. A correlation with capacity decrease measured with Coulomb counting was established. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica -Impedance spectroscopy. -Battery -state of health -entropy -degradation -impedance spectroscopy -Bateries -Impedància (Electricitat) |
Derechos:
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Tipo de documento:
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Artículo - Versión presentada Objeto de conferencia |
Editor:
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ZAHNER-elektrik GmbH & Co. KG
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