Accelerated Aging of Lithium-Ion Batteries based on Electric Vehicle Mission Profile

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Electric vehicles (EVs) represent one of the solutions for reducing the carbon emissions worldwide. Even though EVs have recently gained more and more popularity, their adoption at a large scale is mainly prevented by several factors, such as range anxiety and battery degradation. The range of an EV is mainly limited by the energy density and specific energy of the battery, while the battery degradation is determined by the driving manner (i.e., the mission profile) to which the EV is subjected to. In this paper we analyze the EV-battery degradation, in terms of both capacity fade and internal resistance increase (power decrease), by performing laboratory accelerated ageing tests for a period of eleven months. To perform this analysis, we used a standardized driving cycle – the Worldwide harmonized Light vehicles Test Cycle (WLTC) and a real-life temperature profile, characteristic to a European city. Furthermore, the study is performed for a Lithium-ion battery chemistry, which is nowadays very popular for EVs, the nickel manganese cobalt oxide-chemistry.
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Electric vehicles (EVs) represent one of the solutions for reducing the carbon emissions worldwide. Even though EVs have recently gained more and more popularity, their adoption at a large scale is mainly prevented by several factors, such as range anxiety and battery degradation. The range of an EV is mainly limited by the energy density and specific energy of the battery, while the battery degradation is determined by the driving manner (i.e., the mission profile) to which the EV is subjected to. In this paper we analyze the EV-battery degradation, in terms of both capacity fade and internal resistance increase (power decrease), by performing laboratory accelerated ageing tests for a period of eleven months. To perform this analysis, we used a standardized driving cycle – the Worldwide harmonized Light vehicles Test Cycle (WLTC) and a real-life temperature profile, characteristic to a European city. Furthermore, the study is performed for a Lithium-ion battery chemistry, which is nowadays very popular for EVs, the nickel manganese cobalt oxide-chemistry.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages7
PublisherIEEE Press
Publication dateOct 2017
Pages5631-5637
DOI
StatePublished - Oct 2017
Publication categoryResearch
Peer-reviewedYes
Event2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, United States
Duration: 1 Oct 20175 Oct 2017

Conference

Conference2017 IEEE Energy Conversion Congress and Exposition (ECCE)
LandUnited States
ByCincinnati, Ohio
Periode01/10/201705/10/2017

    Research areas

  • Electric vehicle, Lithium-ion battery, Driving cycle, Accelerated ageing, Capacity , Internal resistance

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