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Browsing NTNU Open by Author "Asheim, Karina"

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    • Comparing the Performance of Different Silicon Powders for Use in Lithium-Ion Batteries 

      Pollen, Harald Norrud (Master thesis, 2018)
      The topic of this thesis is silicon anodes for lithium-ion batteries. The aim of this thesis is to compare three different types of silicon powders for use in lithium-ion batteries - a micron-sized powder (Silgrain e-Si ...
    • High capacity Mg batteries based on surface-controlled electrochemical reactions 

      Wang, Lu; Vullum, Per Erik; Asheim, Karina; Wang, Xuehang; Svensson, Ann Mari; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2018)
      Mg batteries are one of several new battery technologies expected to partially substitute lithium-based batteries in the future due to the lower cost and higher safety. However, the development of Mg batteries has been ...
    • New Materials for Mg-ion batteries - Mn3O4 as cathode 

      Asheim, Karina (Master thesis, 2016)
      Due to drawbacks with the lithium ion battery technology, magnesium ion batteries are being researched as an alternative replacement system. An optimal combination of component materials has however not been discovered ...
    • Performance and failure analysis of full cell lithium ion battery with LiNi0.8Co0.15Al0.05O2 and silicon electrodes 

      Wagner, Nils Peter; Asheim, Karina; Vullum-Bruer, Fride; Svensson, Ann Mari (Journal article; Peer reviewed, 2019)
      The influence of the lithium inventory on the performance and degradation mechanism of NCA||Si cells operating at a third of the theoretical silicon capacity is analysed. The lithium inventory was increased by electrochemical ...
    • Sponge-like porous manganese(II,III) oxide as a highly efficient cathode material for rechargeable magnesium ion batteries 

      Wang, Lu; Asheim, Karina; Vullum, Per Erik; Svensson, Ann Mari; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2016)
      Here, we are the first to report a spinel type Mn3O4 as cathode material for Mg-ion battery (MIB) with graphite foil (Gif) as current collector. High Coulombic efficiency and good cyclic stability of Mn3O4 are demonstrated, ...

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