Potential complexes of NaCF3SO3-tetraethylene dimethyl glycol ether (tetraglyme)-based electrolytes for sodium rechargeable battery application

N. C. Su, S. A.M. Noor, M. F. Roslee, N. S. Mohamed, Azizan Ahmad, M. Z.A. Yahya

Research output: Contribution to journalArticle

Abstract

The increasing energy demand on available global lithium resources has created concerns on development of new and advanced sustainable energy sources. Sodium-based batteries have emerged as promising substitutions to Li-based batteries. We describe here sodium trifluoromethanesulfonate (NaCF3SO3) electrolyte system based on tetraethylene glycol dimethyl ether (tetraglyme). The ionic conductivity of the electrolytes showed a maximum value of 1.6 mS cm−1 for 40 mol% of NaCF3SO3 at room temperature and increased up to of 9.5 mS cm−1 at 373 K. The system showed the anodic stability of the electrolytes up to ca. 5.2 V (Na+/Na) and facile deposition of sodium began at relatively low overpotential, around − 0.01 V vs. Na+/Na, which showed a good reversibility of the electrolytes. Preliminary tests of the electrolyte in half sodium-ion cells employing Na3V2(PO4)3 as cathode electrodes were performed and the cells delivered capacity of 74 mAh g−1 at C/10.

Original languageEnglish
JournalIonics
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Secondary batteries
Glycols
Electrolytes
electric batteries
glycols
Ethers
ethers
Sodium
sodium
electrolytes
energy sources
Ionic conductivity
cells
Lithium
ion currents
resources
Cathodes
Substitution reactions
lithium
cathodes

Keywords

  • Electrochemical properties
  • Sodium battery
  • Sodium trifluromethanesulfonate
  • Tetraglyme

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Potential complexes of NaCF3SO3-tetraethylene dimethyl glycol ether (tetraglyme)-based electrolytes for sodium rechargeable battery application. / Su, N. C.; Noor, S. A.M.; Roslee, M. F.; Mohamed, N. S.; Ahmad, Azizan; Yahya, M. Z.A.

In: Ionics, 01.01.2018.

Research output: Contribution to journalArticle

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AU - Mohamed, N. S.

AU - Ahmad, Azizan

AU - Yahya, M. Z.A.

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