2026-04-18T07:06:23Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1169562025-07-17T09:06:10Zcom_2072_1033col_2072_452950

Battery aging impedance spectroscopy and incremental capacity analysis Ovejas Benedicto, Victòria Júlia Cuadras Tomàs, Àngel Àrees temàtiques de la UPC::Enginyeria electrònica Impedance spectroscopy. Battery state of health entropy degradation impedance spectroscopy Bateries Impedància (Electricitat) 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) 2017 Conference report https://www.tu-chemnitz.de/etit/messtech/iwis/ Open Access ZAHNER-elektrik GmbH & Co. KG