State of Health estimation for NCA-C Lithium-ion cells. Issue 15 (2015)

• Record Type: Journal Article
• Authors: Domenico, D. Di; Pognant-Gros, P.; Petit, M.; Creff, Y.
• Is Part Of: IFAC-PapersOnLine. Volume 48:Issue 15(2015)
• Page Start: 376
• Page End: 382
• Publication Date: 2015
• Subjects: Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2015.10.054
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: The Lithium-ion batteries suffer from several aging phenomena, which imply a battery performance degradation, i.e. decreasing in energy storage capacity and power supply capability. For the electrified vehicles, monitoring the health of the battery pack is a necessary task that can prevent the system defaults, alert for anomalies, and predict the battery end-of-life (EOL). This paper presents a two-phase cell state of health (SOH) estimation strategy, depending on the cell current demand. The cell energy storage capacity is identified when the battery is at rest while the cell power supply capability is identified during the cell cycling.