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Silicon-carbon composite anodes from industrial battery grade silicon

Autor: Tommy Mokkelbost, Per Erik Vullum, Jan Petter Mæhlen, Asbjørn Ulvestad, Jorunn Voje, Hanne Leth Andersen, Carl Erik Lie Foss, Ragnar Tronstad, Martin Kirkengen

Publikováno v: Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (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 of micrometic Si with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::923b23403af69efa2ab6c3453b17128f
https://hdl.handle.net/11250/2624756

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On Ionic and Covalent Cross-Linking of Alginic Acid Derived Binders for High Capacity Silicon Anodes

Autor: Nils P. Wagner, Sidsel Meli Hanetho, Anne Tøndervik, Hårvard Sletta, Mari Juel, Jan Petter Mæhlen, Ann Mari Svensson, Jorunn Voje, Trond Helgerud

Publikováno v: ECS Meeting Abstracts. :223-223

The anode market for automotive Li-ion batteries is still governed by carbonaceous materials with a market share of 96%.[1] The graphite electrodes used today can only deliver a moderate capacity of 300-350 mAh/g, and improvements are highly sought.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c8c2975db43dcafbb094256a0c59279
https://doi.org/10.1149/ma2019-02/5/223

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The Effect of Molecular Weight, M/G Ratio and pH on the Cyclability of Alginate Bound High Capacity Silicon Anodes

Autor: Nils P. Wagner, Julian Richard Tolchard, Anne Tøndervik, Mari Juel, Jan Petter Mæhlen, Jorunn Voje, Trond Helgerud, Ann Mari Svensson

Publikováno v: ECS Meeting Abstracts. :293-293

Classical rocking chair Li-ion batteries are dominating the market as they are currently the battery concept with the highest energy density, both per weight and volume. As the technology is rather mature, only small increases in energy density are e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4f6312ed9a00add6463685388df9cbe
https://doi.org/10.1149/ma2018-02/4/293

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NanoSIMS Analysis of Trace Element Segregation during the Al-Si Eutectic Reaction

Autor: Jorunn Voje, Christian J. Simensen, Francois Hillion, Øyvind Nielsen

Publikováno v: Metallurgical and Materials Transactions A. 38:1448-1451

The purpose of the present article was to test, for the first time, the potential of the NanoSIMS for quantifying the microscale spatial distribution of trace elements in aluminum alloys. As a suitable test case, two variants of an as-cast industrial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d79aafc3a31d31aa298488a79405f38
https://doi.org/10.1007/s11661-007-9165-y

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On the effect of additions of Cu and Mg on the ductility of AlSi foundry alloys cast with a cooling rate of approximately 3K/s

Autor: Jorunn Voje, Anne Lise Dons, Asbjørn Prestmo, Jan Ove Løland, Jorunn Snøan Mæland, Gustav Heiberg

Publikováno v: Materials Science and Engineering: A. :561-566

Al–7–11%Si alloys with and without Mg and Cu have been cast in the laboratory, examined metallographically and tested mechanically, before and after heat treatments. Additions of Mg and Cu increased the strength and reduced the ductility. Several

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74001193ec7a7814f18b79b1b0f948fa
https://doi.org/10.1016/j.msea.2005.09.053

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Alginate Based Binder Materials for High Capacity Silicon Anodes

Autor: Tommy Mokkelbost, Nils P. Wagner, Anne Tøndervik, Julian Richard Tolchard, Edel Sheridan, Jan Petter Mæhlen, Jorunn Voje, Trond Helgerud, Ann Mari Svensson

Publikováno v: ECS Meeting Abstracts. :391-391

Lithium-ion secondary cells are one of the most advanced energy storage systems currently available, and the battery concept with the highest specific energy and energy density. Due to rapidly falling cost following mass production, Li-ion batteries

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c23625fc9468c0ff77caf59ec4de255d
https://doi.org/10.1149/ma2017-02/4/391

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A Cost Efficient Silicon-Carbon Based Anode Material for Lithium-Ion Batteries

Autor: Hanne Flåten Andersen, Jan Petter Mæhlen, Per Erik Vullum, Tommy Mokkelbost, Jorunn Voje, Bjørn Sandberg, Preben J. S. Vie, Martin Kirkengen

Publikováno v: ECS Meeting Abstracts. :441-441

Silicon anodes have been proposed as anodes for Li-ion batteries due to their very high theoretical capacity. It has the potential to store ten times more lithium than graphite, the material commonly used in lithium-ion anodes [1]. However, great per

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab4fe374657f213fcd1ec99d4f3d969b
https://doi.org/10.1149/ma2016-02/3/441

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A Cost Efficient Silicon-Carbon based Anode Material for Lithium-Ion Batteries

Autor: Jorunn Voje, Martin Kirkengen

Publikováno v: ECS Meeting Abstracts. :64-64

Silicon as anode material for Li-ion batteries is interesting due to its very high theoretical capacity. However, the positive ability to accommodate up to four lithium ions per silicon atom has a corresponding downside in the extreme changes occurri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a501fccf89516d66d317af02d9860af3
https://doi.org/10.1149/ma2016-03/1/64

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