Nanocrystalline cellulose-reinforced composite mats for lithium-ion batteries: Electrochemical and thermomechanical performance

Boor Singh Lalia, Yarjan Abdul Samad, Raed Hashaikeh

Research output: Contribution to journalArticlepeer-review

Abstract

Nanocrystalline cellulose (NCC)-reinforced poly(vinylidenefluoride-co- hexafluoropropylene) (PVdF-HFP) composite mats have been prepared by electrospinning method. Polymer electrolytes formed by activating the composite mats with 1 M lithium bis(trifluoromethanesulfonyl)imide/1-butyl-3- methypyrrolidinium bis(trifluoromethanesulfonyl)imide electrolyte solution. The addition of 2 wt% NCC in PVdF-HFP improved the electrolyte retention and storage modulus of the separator by 63 and 15 %, respectively. The developed electrolyte demonstrated high value of ionic conductivity viz. 4 × 10 -4 S cm-1 at 30 C. Linear scan voltammetry revealed a wide electrochemical stability of the composite mat separator up to 5 V (vs. Li +/Li). Cyclic voltammetry of the polymer electrolyte with a graphite electrode in 2.5 to 0 V (vs. Li+/Li) potential range showed a reversible intercalation/de-intercalation of Li+ ions in the graphite. No peaks were observed related to the reduction of the electrolyte on the anode.

Original languageEnglish (US)
Pages (from-to)575-581
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume17
Issue number3
DOIs
StatePublished - Mar 2013

Keywords

  • Conductivity
  • Lithium-ion Batteries
  • Nanocrystalline cellulose
  • Polymer Electrolyte

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

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