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Structural Influence of the Anode Materials towards Efficient Zn Deposition/Dissolution in Aqueous Zn-Iodide Flow Batteries
- Source :
- Dipòsit Digital de la UB, Universidad de Barcelona
- Publication Year :
- 2021
- Publisher :
- Electrochemical Society, 2021.
-
Abstract
- Zinc-iodide flow battery (ZIFB) is one of the best potential candidates for future grid-scale energy storage, due to its eye-catching features of benign, high energy density and non-corrosive nature. However major investigations have not done yet on the negative electrode of this battery where the Zn deposition/dissolution mechanism takes place, which may have an impact on the battery performance. Herein, we have reported a comparative study of different carbon-based anodes which are conventional graphite felt, carbon paper and graphite foil. Single-cell charge/discharge performances among these three different anodes depicts that the cell with planar, hydrophilic graphite foil anode is showing the best energy efficiency and the lowest cell resistance among the carbonaceous electrodes. Zinc dissolution process during discharge process seems to be the bottleneck for having a stable cell, which was corroborated by the use of a Zn foil anode that shows excellent efficiencies along the successive cycles.
- Subjects :
- chemistry.chemical_classification
Aqueous solution
Materials science
Renewable Energy, Sustainability and the Environment
Nanotecnologia
Flow (psychology)
Iodide
Compostos organozíncics
Condensed Matter Physics
Electric batteries
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Anode
Organozinc compounds
Chemical engineering
chemistry
Bateries elèctriques
Materials Chemistry
Electrochemistry
Nanotechnology
Dissolution
Deposition (chemistry)
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Dipòsit Digital de la UB, Universidad de Barcelona
- Accession number :
- edsair.doi.dedup.....5a2a264a202c8b6a21209372476409cf