Possibility of Silicon Nanocages as Anode Electrodes in Metal-Ion Batteries: Computational Examination

  • Saade Abdalkareem Jasim
  • , Yassine Riadi
  • , Nusrat N. Akhmadaliev
  • , Himanshu Sharma
  • , Holya A. Lafta
  • , Jinlian Qiao

Research output: Contribution to journalArticlepeer-review

Abstract

Potential of silicon nanocages (Sin, n = 20, 24, 28, 32, 36, 40, 44, 48, 60, 70, 80 and 90) as anodes in batteries are examined. The thermal stability, ionization potentials, electron affinities, bond gap energies of Sin structures are investigated. Results shown when the numbers of Si atoms of nanocages are increased the IP, EGap and EA of Sin are decreased. The cell voltage and capacities of 12 silicon structures are investigated. The Vcell and CTheory of Sin in batteries in four sides of nanocage positions are higher than inner and outer positions. The Vcell of Sin structures in Li-ion batteries are 1.82–2.20 V and the CTheory of Sin structures in Li-IBs are 653.0–799.2 mAh/g. The Vcell and CTheory of Sin structures in this study are higher than Vcell and CTheory of graphite compounds, carbon nano structures and boron nitride nanotubes.

Original languageEnglish
Pages (from-to)10225-10235
Number of pages11
JournalSilicon
Volume14
Issue number16
DOIs
StatePublished - Nov 2022

Keywords

  • Battery
  • Cell voltage
  • Electrode
  • Nano
  • Silicon

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