Study of graphite/NCA Li-ion cell degradation during accelerated aging tests - Data analysis of the SIMSTOCK project

Weiping Liu; Charles Delacourt; Christophe Forgez; Serge Pelissier

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Study of graphite/NCA Li-ion cell degradation during accelerated aging tests - Data analysis of the SIMSTOCK project

Weiping Liu, Charles Delacourt, Christophe Forgez et Serge Pelissier

IEEE VPPC 2011 Vehicular Power and propulsion Conference

IEEE VPPC 2011 Vehicular Power and propulsion Conference (CHICAGO, United States, 06/09/2011–09/09/2011)

01/01/2011

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This paper presents a preliminary analysis of aging data from the French SIMSTOCK program in order to evaluate the influence of several aging factors on capacity fade and impedance increase of graphite/NCA Li-ion batteries over accelerated aging tests. Test protocols (cycling and check-up) are presented, and the behavior of battery under aging is described. An equivalent-circuit model is used to extract the various contributions of the impedance spectra. Finally, the influence of the aging factors on capacity fade and impedance increase is discussed.

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Titre: Study of graphite/NCA Li-ion cell degradation during accelerated aging tests - Data analysis of the SIMSTOCK project
Créateurs - sans rôle: Weiping Liu - Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV
Charles Delacourt - Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV
Christophe Forgez - Laboratoire d'Electromécanique de Compiègne
Serge Pelissier - Laboratoire Transport et Environnement
Détails de publication: IEEE VPPC 2011 Vehicular Power and propulsion Conference
Colloque: IEEE VPPC 2011 Vehicular Power and propulsion Conference (CHICAGO, United States, 06/09/2011–09/09/2011)
Identifiants: 9937129809311
Unité académique: Université de Montpellier
Langue: English
Type de ressource: Conference proceeding
Champs locaux: hal-01228538