Sodium ion conducting gel polymer electrolyte using poly(vinylidene fluoride hexafluoropropylene)

Duy Thanh Vo, Hoang Nguyen Do, Thien Trung Nguyen, Thi Tuyet Hanh Nguyen, Van Man Tran, Shigeto Okada, My Loan Phung Le

Research output: Contribution to journalArticle

Abstract

Gel polymer electrolyte (GPE) films using polyvinylidene fluoride – hexafluoropropylene (PVdF – HFP) matrix were prepared for aim to achieve good sodium-ion conductivity at room temperature. GPE of PVF-HFP were formed by microporous PVDF-HFP membranes filled and swollen in different liquid electrolytes: GPEs were formed by microporous PVDF-HFP membranes filled and swollen in different liquid electrolytes: NaClO 4 , NaPF 6 and NaTFSI salts dissolved in mixtures of carbonate solvents (propylene carbonate (PC), fluoroethylenecarbonate (FEC)) or ionic liquids (1-ethyl-3-methylimidazolium bis(trifluoromethane-sulfonyl)imide and 1-butyl-3-methyl bis(trifluoromethanesulfonyl)imide). The effect of different electrolytes on the structure and morphology, electrolyte absorption and sodium ionic conductivity of activated membrane were investigated. GPEs showed “sponge-like” structure with high porosity of 80–85% and large pore size. The ionic conductivity of GPEs reached 1–2 mS.cm −1 at room temperature. Sodium intercalation into Na 0.44 MnO 2 electrode was performed in coin-cell type by using GPEs as conduction media. Cycling data of sodium cell using PVdF-HFP/NaClO 4 1 M-PC:2%FEC exhibited an excellent stable specific capacity of 100 mAh.g −1 at room temperature.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume241
DOIs
Publication statusPublished - Feb 1 2019

Fingerprint

vinylidene
Electrolytes
fluorides
Polymers
Gels
Sodium
sodium
electrolytes
gels
Ions
conduction
polymers
Imides
Carbonates
carbonates
ions
imides
Ionic conductivity
membranes
propylene

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Sodium ion conducting gel polymer electrolyte using poly(vinylidene fluoride hexafluoropropylene). / Vo, Duy Thanh; Do, Hoang Nguyen; Nguyen, Thien Trung; Nguyen, Thi Tuyet Hanh; Tran, Van Man; Okada, Shigeto; Le, My Loan Phung.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 241, 01.02.2019, p. 27-35.

Research output: Contribution to journalArticle

Vo, Duy Thanh ; Do, Hoang Nguyen ; Nguyen, Thien Trung ; Nguyen, Thi Tuyet Hanh ; Tran, Van Man ; Okada, Shigeto ; Le, My Loan Phung. / Sodium ion conducting gel polymer electrolyte using poly(vinylidene fluoride hexafluoropropylene). In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2019 ; Vol. 241. pp. 27-35.
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