Blar i NTNU Open på forfatter "Andersen, Hanne Flåten"
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Improved electrochemical performance and solid electrolyte interphase properties of electrolytes based on lithium bis(fluorosulfonyl)imide for high content silicon anodes
Asheim, Karina; Vullum, Per Erik; Wagner, Nils Peter; Andersen, Hanne Flåten; Mæhlen, Jan Petter; Svensson, Ann Mari (Journal article; Peer reviewed, 2022)Electrodes containing 60 wt% micron-sized silicon were investigated with electrolytes containing carbonate solvents and either LiPF6 or lithium bis(fluorosulfonyl)imide (LiFSI) salt. The electrodes showed improved performance, ... -
Morphology effects in MgH2 anode for lithium ion batteries
El-Kharbachi, Abdelouahab; Andersen, Hanne Flåten; Sørby, Magnus Helgerud; Vullum, Per Erik; Mæhlen, Jan Petter; Hauback, Bjørn (Journal article, 2017)In order to acquire reproducible electrodes relevant for Li ion batteries new MgH2 electrodes are successfully obtained from homogenous slurries in N-Methyl-2-Pyrrolidone “NMP” solvent. The electrodes are aimed to elucidate ... -
Nanostructured magnesium silicide Mg2Si and its electrochemical performance as an anode of a lithium ion battery
Sainudeen Nazer, Nazia; Denys, Roman Volodymyrovich; Andersen, Hanne Flåten; Arnberg, Lars; Yartys, Volodymyr (Journal article, 2017)Nano-crystalline Mg2Si (Mg67Si33) and its Si-rich eutectic (Mg47Si53) composition were synthesized by hydrogen desorption-recombination process, casting and rapid solidification techniques. The synthesis of Mg2Si meets ... -
On the Cycling Performance and Stability of Silicon-Based Anodes in Lithium-Ion Batteries - Revealing Challenges and Failure Mechanisms Using Post Mortem Analyses
Kaland, Henning (Master thesis, 2017)Li-ion batteries with improved energy density can be obtained by increasing the Si content in the graphite electrode, or replace it entirely with a Si based electrode. This may have the additional benefit of improving ... -
Optimizing fuel cell for Shell Eco-marathon 2009
Andersen, Hanne Flåten (Master thesis, 2009) -
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; 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 ... -
Stoichiometry-Controlled Reversible Lithiation Capacity in Nanostructured Silicon Nitrides Enabled by in Situ Conversion Reaction
Ulvestad, Asbjørn; Skare, Marte Orderud; Foss, Carl Erik Lie; Krogsæter, Henrik; Reichstein, Jakob; Preston, Thomas J.; Mæhlen, Jan Petter; Andersen, Hanne Flåten; Koposov, Alexey (Peer reviewed; Journal article, 2021)In modern Li-based batteries, alloying anode materials have the potential to drastically improve the volumetric and specific energy storage capacity. For the past decade silicon has been viewed as a “Holy Grail” among these ...