Browsing Fysisk institutt by Author "Ulvestad, Asbjørn"

Now showing items 1-3 of 3

  • Long-term cyclability of substoichiometric silicon nitride thin film anodes for Li-ion batteries 
    Ulvestad, Asbjørn; Andersen, Hanne Flåten; Mæhlen, Jan Petter; Prytz, Øystein; Kirkengen, Martin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Silicon has been the subject of an extensive research effort aimed at developing new anode materials for lithium ion batteries due to its large specific and volumetric capacity. However, commercial use is limited by a ...
  • Silicon nitride as anode material for Li-ion batteries: Understanding the SiNx conversion reaction 
    Ulvestad, Asbjørn; Mæhlen, Jan Petter; Kirkengen, Martin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    An extensive research effort is being made to develop the next generation of anode materials for lithium ion batteries. A large part of this effort has been related to silicon, primarily due to its considerable theoretical ...
  • Silicon-carbon composite anodes from industrial battery grade silicon 
    Foss, Carl Erik Lie; Andersen, Hanne Flåten; Ulvestad, Asbjørn; Kirkengen, Martin; Vullum, Per Erik; Voje, Jorunn; Tronstad, Ragnar; Mokkelbost, Tommy; Mæhlen, Jan Petter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    In this work, silicon/carbon composites for anode electrodes of Li-ion batteries are prepared from Elkem’s Silgrain® line. Gentle ball milling is used to reduce particle size of Silgrain, and the resulting Si powder consists ...