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Battery aging impedance spectroscopy and incremental capacity analysis

Author

Ovejas Benedicto, Victòria Júlia

Cuadras Tomàs, Àngel

Other authors

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

Publication date

2017

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Abstract

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.

Postprint (author's final draft)

Document Type

Conference report

Language

English

Subjects and keywords

Àrees temàtiques de la UPC::Enginyeria electrònica; Impedance spectroscopy.; Battery; state of health; entropy; degradation; impedance spectroscopy; Bateries; Impedància (Electricitat)

Publisher

ZAHNER-elektrik GmbH & Co. KG

Related items

https://www.tu-chemnitz.de/etit/messtech/iwis/

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DIDL MARC MARC_CCUC METS OAI_DC ORE QDC RDF

Rights

Open Access

This item appears in the following Collection(s)

E-prints [72987]