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Scalable synthesis of nano-silicon from beach sand for long cycle life Li-ion batteries
Favors, Z.; Wang, W.; Hosseini Bay, H.; Mutlu, Z.; Ahmed, K.; Liu, C.; Ozkan, M.; Ozkan, C.S. (2014). Scalable synthesis of nano-silicon from beach sand for long cycle life Li-ion batteries. NPG Scientific Reports 4(5623): 7 pp. http://dx.doi.org/10.1038/srep05623
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
Peer reviewed article  
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Auteurs  Top 
  • Favors, Z.
  • Wang, W.
  • Hosseini Bay, H.
  • Mutlu, Z.
  • Ahmed, K.
  • Liu, C.
  • Ozkan, M.
  • Ozkan, C.S.
Abstract
    Herein, porous nano-silicon has been synthesized via a highly scalable heat scavenger-assisted magnesiothermic reduction of beach sand. This environmentally benign, highly abundant, and low cost SiO2 source allows for production of nano-silicon at the industry level with excellent electrochemical performance as an anode material for Li-ion batteries. The addition of NaCl, as an effective heat scavenger for the highly exothermic magnesium reduction process, promotes the formation of an interconnected 3D network of nano-silicon with a thickness of 8-10 nm. Carbon coated nano-silicon electrodes achieve remarkable electrochemical performance with a capacity of 1024 mAhg-1 at 2 Ag-1 after 1000 cycles.
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