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    (Invited) Changes in Thermal Stability of Cyclic Aged Commercial Lithium-Ion Cells

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    1702896.pdf (961.1Kb)
    Date
    2019
    Author
    Lian, Torleif
    Vie, Preben Joakim Svela
    Gilljam, Martin
    Forseth, Sissel
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    Abstract
    Thermal stability is one of several factors affecting the safety properties of lithium-ion cells. The thermal stability for uncycled cells is well-documented, but the effect of cyclic ageing on thermal stability is far less studied and only for 18650 sized cells. In this paper, we describe how different temperature and current loads are affecting the thermal stability during cyclic aging. Three cylindrical lithium-ion power cells with different cathode, energy content and size were cyclic aged. Decrease in thermal stability was found in all three cyclic ageing test series as a function of relatively high current and low temperature. The decrease in thermal stability could be dangerous and should be an end of life criterion.
    URI
    http://hdl.handle.net/20.500.12242/2616
    DOI
    10.1149/08901.0073ecst
    Description
    Lian, Torleif; Vie, Preben Joakim Svela; Gilljam, Martin; Forseth, Sissel. Changes in Thermal Stability of Cyclic Aged Commercial Lithium-Ion Cells. ECS Transactions 2019 ;Volum 89.(1) s. 73-81 FFI IFE
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