The effect of binder and electrolyte on the performance of thin zinc-air battery

Matthias Hilder, Bjorn Winther Jensen, Noel B. Clark

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The performance of a flexible, thin-film, zinc-air battery can be improved significantly if using a sodium silicate as a novel inorganic binder pigment for the anode components. Formulations consisting of zinc and carbon in sodium silicate are applied onto various substrates (glass or indium tin oxide) by casting and printing methods. Film properties such as mechanical stability, surface resistivity, surface conductivity, surface morphology, thickness and the metal content were correlated to the composition of the films. Prototype batteries were prepared by connecting those anodes to poly(3,4- ethylenedioxythiophene)-based air cathode and the electrochemical conversion efficiencies were determined in 1 mol/dm 3 sodium chloride and basic 8 mol/dm 3 lithium chloride (pH = 11) electrolyte solutions. X-ray powder diffraction, X-ray tomography and scanning electron microscopy examinations were applied to study the conversion process. The results show that silicate binders perform better than polycarbonate binders, and using highly concentrated lithium chloride electrolyte further enhances performance compared to sodium chloride. Electrochemical conversion efficiencies of over 90% are achieved when related to the applied metal. Since no organic solvents are needed, the aqueous, silicate-based binder has potential as and environmentally friendly formulation for printed zinc-air batteries.

Original languageEnglish
Pages (from-to)308-314
Number of pages7
JournalElectrochimica Acta
Volume69
DOIs
Publication statusPublished - 2012 May 1
Externally publishedYes

Fingerprint

Electrolytes
Silicates
Binders
Zinc
Lithium Chloride
polycarbonate
Sodium chloride
Air
Sodium Chloride
Conversion efficiency
Anodes
Lithium
Metals
Sodium
Mechanical stability
Polycarbonates
Tin oxides
Pigments
X ray powder diffraction
Indium

Keywords

  • Conducting polymers
  • Metal-air battery
  • PEDOT
  • Sodium silicate
  • Zinc

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

The effect of binder and electrolyte on the performance of thin zinc-air battery. / Hilder, Matthias; Winther Jensen, Bjorn; Clark, Noel B.

In: Electrochimica Acta, Vol. 69, 01.05.2012, p. 308-314.

Research output: Contribution to journalArticle

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