Highly Efficient Thin Zinc Air Batteries
- 23 August 2019
- journal article
- research article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 166 (13), A2879-A2886
- https://doi.org/10.1149/2.0741913jes
Abstract
Zinc air batteries have been recognized as an important type of energy storage devices due to their high energy density and relatively low cost. However, unsatisfactory cycle life limits their applications. Herein, a novel structure of zinc air batteries was demonstrated, which possesses a small distance (0.11 mm) between two electrodes, great exposure to air, and small thickness (0.2 mm for each) of gas diffusion layer and catalyst layer. Even using the commercial Co3O4 catalyst without modification, such a structured thin cell reached the highest discharge power density of 89.0 mW/cm2 at 92.3 mA/cm2 and 1.0 V in 6 M KOH and 0.2 M Zn(CH3COO)2. Furthermore, it also survived 400 charge-discharge cycles at 15 mA/cm2 and exhibited almost constant cell voltage gap of ∼1.2 V, with mild Zn anode deformation. These findings suggest enormous potential and research value of ultrathin zinc air batteries.This publication has 37 references indexed in Scilit:
- Morphologically controlled Co3O4 nanodisks as practical bi-functional catalyst for rechargeable zinc–air battery applicationsElectrochemistry Communications, 2014
- Analyzing transport paths in the air electrode of a zinc air battery using X-ray tomographyElectrochemistry Communications, 2014
- Model based quantification of air-composition impact on secondary zinc air batteriesElectrochimica Acta, 2014
- Oxygen electrocatalysts in metal–air batteries: from aqueous to nonaqueous electrolytesChemical Society Reviews, 2013
- High Energy Density Metal-Air Batteries: A ReviewJournal of the Electrochemical Society, 2013
- Highly Active and Durable Core–Corona Structured Bifunctional Catalyst for Rechargeable Metal–Air Battery ApplicationNano Letters, 2012
- Electrical Energy Storage for the Grid: A Battery of ChoicesScience, 2011
- Electrochemical Energy Storage for Green GridChemical Reviews, 2011
- Advanced Materials for Energy StorageAdvanced Materials, 2010
- The roles and electrochemical characterizations of activated carbon in zinc air battery cathodesElectrochimica Acta, 2006