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  <doc>
    <id>5758</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>10</pageNumber>
    <edition/>
    <issue/>
    <volume>101</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Age-related development of cell-to-cell variation under various operating conditions in commercial NMC/graphite lithium-ion cells</title>
    <abstract language="eng">In real applications, lithium-ion cells are usually used in individual interconnections, with the worst cell determining capacity, performance and service life. Due to different ageing rates of the assembled cells, cell-to-cell variation changes over lifetime. In literature, cell-to-cell variation is usually investigated near room temperature under one operating condition. Data regarding cell-to-cell variation above and below room temperature under different operating conditions are hard to find. To fill the gap in literature, this study considers cell-to-cell variation as a function of different charge/discharge currents at ambient temperatures between 0 °C and 40 °C on commercial NMC/graphite cells (Samsung SDI ICR18650-26J). The results demonstrate that cell-to-cell variation strongly depends on the selected operating conditions. In particular, operating conditions near the lithium plating boundary at the beginning of the ageing process have a particularly high risk of developing a pronounced variation. Fast charging or charging at lower temperatures should therefore be avoided. Operation at moderate temperatures and currents, on the other hand, only leads to a slight increase in cell-to-cell variation in the tests carried out. A 24-month storage during the testing period at 30% SOC and room temperature of the same cells shows even a slight reduction in cell-to-cell variation.</abstract>
    <parentTitle language="eng">Journal of Energy Storage</parentTitle>
    <identifier type="doi">10.1016/j.est.2024.113787</identifier>
    <identifier type="urn">urn:nbn:de:bvb:863-opus-57585</identifier>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>David Oeser</author>
    <author>Thiemo Hein</author>
    <author>Andreas Ziegler</author>
    <author>Michael Seefried</author>
    <author>Sebastian Gielinger</author>
    <author>Daniel Montesinos-Miracle</author>
    <author>Gunther Bohn</author>
    <author>Ansgar Ackva</author>
    <collection role="institutes" number="ttzemo">Technologietransferzentrum Elektromobilität (TTZ-EMO)</collection>
    <collection role="oa-colour" number="">Gefördert (Hybrid/DEAL)</collection>
    <file>https://opus4.kobv.de/opus4-fhws/files/5758/Oeser_Age-related_development_cell-to-cell.pdf</file>
  </doc>
</export-example>
