Influence analysis of static and dynamic fast-charging current profiles on ageing performance of commercial lithium-ion batteries

Mohamed Abdel-Monem, Khiem Trad, Noshin Omar, Omar Hegazy, Peter Van den Bossche and Joeri Van Mierlo

Energy, 2017, vol. 120, issue C, 179-191

Abstract: The rate and shape of the charging current indubitably affect the charging time and the ageing rate of a battery. Depending on the application requirements, it is possible to use high-charging current in order to decrease the charging time. However, the influence of fast-charging current profiles should be investigated to identify their impact on battery functionality over time. In this article, static and dynamic fast-charging current profiles are applied to a high power 7 Ah LiFePO4-based cells (LFP), and the results of cycle-life and characterization tests are discussed. To select the proper fast-charging profile, the evaluation relies on some factors: discharge capacity retention, charging capacity, charging time, and cell temperature. After 1700 cycles, the results revealed that the dynamic fast-charging current profile has a prominent role in decreasing the degradation rate as well as the charging time of cells compared with the static fast-charging profile.

Keywords: Lithium-ion batteries; Static and dynamic fast charging; Electrochemical impedance analysis; Incremental capacity analysis; Charging techniques (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (29)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:120:y:2017:i:c:p:179-191

DOI: 10.1016/j.energy.2016.12.110

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