Chimica Techno Acta (Jan 2021)

Influence of a binder on the electrochemical behaviour of Si/RGO composite as negative electrode material for Li-ion batteries

  • A. V. Korchun,
  • E. Yu. Evshchik,
  • S. A. Baskakov,
  • O. V. Bushkova,
  • Y. A. Dobrovolsky

DOI
https://doi.org/10.15826/chimtech.2020.7.4.21
Journal volume & issue
Vol. 7, no. 4
pp. 259 – 268

Abstract

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A composite consisting of silicon nanoparticles and reduced graphene oxide nanosheets (Si/RGO) was studied as a promising material for the negative electrode of lithium-ion batteries. Commonly used polyvinylidene fluoride (PVdF) and carboxymethyl cellulose (CMC) served as a binder. To reveal the influence of the binder on the electrochemical behaviour of the Si/RGO composite, binder-free electrodes were also prepared and examined. Anode half-cells with composites comprising CMC as a binder demonstrated the best properties: capacity over 1200 mAh∙g-1, excellent cycling performance and good rate capability up to 1.0C.

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