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  • Fire safety of li-ion battery packs for aviation [Elektronski vir]
    Rojas Alva, Wilson Ulises ; Uršič, Matija, kemik ; Jomaas, Grunde
    Lithium-ion battery (LIB) technology is being widely used in many sectors that range from transportation to the built environment. In aviation, there have been developments for using LIB technology ... for the propulsion of commercial-leisure sailplanes. If not designed carefully, LIB solutions for such planes can pose a safety hazard as a cell can go into thermal runaway (due to a multitude of reasons), which could potentially endanger the life of the plane’s occupant(s). While the safety requirements for large commercial aircraft that use traditional fossil fuels are strictly regulated, the safety requirements are less strictly defined for lighter passenger aircraft with many boutique or custom solutions. The burden of safety regulation is borne by the European and US aviation agencies, EASA and FAA, which carry out case-by-case oversight for such products. One such product is the FES electric propulsion system from LZ Design in Slovenia. Following EASA requirements, several fire tests were conducted with a new product, namely a battery pack based on type 18650 Li-ion cells, that is used for the propulsion system in powered sailplanes. The thermal runaway of the cell was intentionally triggered, and the thermal behaviour of neighbouring cells was monitored. The successful tests, where the temperature of the neighbouring cells was below 100 °C at an EASA-defined test duration of 15 minutes after the thermal runaway of the target cell, are the basis for the certification of the new battery pack for use in powered sailplanes.
    Source: SFPE Europe [Elektronski vir] : an official publication of SFPE (Quarter 2, iss. 30, 2023, str. 1-7)
    Type of material - e-article ; adult, serious
    Publish date - 2023
    Language - english
    COBISS.SI-ID - 159860739

    Link(s):

    https://higherlogicdownload.s3.amazonaws.com/SFPE/93e7d31c-6432-4991-b440-97a413556197/UploadedImages/SFPE_Europe_Digital/Issue_30/issue5/Article_5_li-ion_battery.pdf
    https://www.sfpe.org/publications/periodicals/sfpeeuropedigital

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