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Silicon-Carbon composite anodes from industrial battery grade silicon

Scientific reports, 2019-10, Vol.9 (1), p.14814-9, Article 14814 [Peer Reviewed Journal]

2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;info:eu-repo/semantics/openAccess ;The Author(s) 2019 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-019-51324-4 ;PMID: 31616034

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  • Title:
    Silicon-Carbon composite anodes from industrial battery grade silicon
  • Author: Andersen, Hanne Flåten ; Foss, Carl Erik Lie ; Voje, Jorunn ; Tronstad, Ragnar ; Mokkelbost, Tommy ; Vullum, Per Erik ; Ulvestad, Asbjørn ; Kirkengen, Martin ; Mæhlen, Jan Petter
  • Subjects: Carbon ; Electrodes ; Impurities ; Silicon ; Slurries
  • Is Part Of: Scientific reports, 2019-10, Vol.9 (1), p.14814-9, Article 14814
  • Description: 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 some impurities. Silicon/carbon composite with CMC/SBR as a dual binder can achieve more than 1200 cycles with a capacity of 1000 mAh g of Si. This excellent electrochemical performance can be attributed to the use of a buffer as a solvent to control the pH of the electrode slurry, and hence the bonding properties of the binder to the silicon particles. In addition, the use of FEC as an electrolyte additive is greatly contributing to a stabilized cycling by creating a more robust SEI layer. This work clearly demonstrates the potential of industrial battery grade silicon from Elkem.
  • Publisher: England: Nature Publishing Group
  • Language: English;Norwegian
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-019-51324-4
    PMID: 31616034
  • Source: AUTh Library subscriptions: ProQuest Central
    NORA Norwegian Open Research Archives
    PubMed Central
    DOAJ Directory of Open Access Journals

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