An overview of progress in electrolytes for secondary zinc-air batteries and other storage systems based on zinc

Mainar, Aroa R.; Iruin, Elena; Colmenares, Luis C.; Kvasha, Andriy; Meatza, Iratxe de; Bengoechea, Miguel; Leonet, Olatz; Boyano, Iker; Zhang, Zhengcheng; Blázquez, J. Alberto

doi:10.1016/j.est.2017.12.004

Cited by 302 publications

(281 citation statements)

References 349 publications

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“…KOH is chosen over LiOH and NaOH due to fast electrochemical kinetics of zinc and high solubility of zincate ions, and high ionic conductivity of K + (73.5 Ω −1 cm −2 equiv −1 ) over other alkali metal cations (Na + = 50.1 and Li + =38.75 Ω −1 cm −2 equiv −1 ) …”

Section: Resultsmentioning

confidence: 99%

Paper‐Based Disposable Zinc‐Vanadium Fuel Cell for Micropower Applications

Pasala

Ramanujam

2019

ChemistrySelect

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The emergence properties of paper as the ionic conductor has driven the new development in energy generators mainly micro‐nano scale energy. Instead of the flow channels in conventional fuel cells, the capillary action of the paper controls the flow of the electrolytes. Paper based biofuel cells and electrochemical fuel cells are recent trends in micro‐nano power generation to support the biosensors. In this study, zinc fuel and VO2+4pt oxidant were used to form a membraneless fuel cell. Instead of membrane, Whatmann® 2 filter paper was used as the separator cum autonomous microfluidic pumping system. When 6 M KOH and 1.5 M VO2+ in 2.5 M H2SO4 were supplied on the anode and cathode respectively, a peak power density of 9.4 mW cm−2 at 1.21 V and open circuit voltage of ∼ 2.5 V were realized. Due to the low cost and high power associated with this system, it can be used to power the Lab‐on‐Chip devices employed for single use point‐of‐care applications.

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Section: Resultsmentioning

confidence: 99%

Paper‐Based Disposable Zinc‐Vanadium Fuel Cell for Micropower Applications

Pasala

Ramanujam

2019

ChemistrySelect

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“…An ideal electrolyte for Zn-air batteries should be stable in the electrochemical window of the cell, stable in air, conductive, non-corrosive, and thermodynamically favor the reversible precipitation of the desired final discharge product. Alternatives include aqueous alkaline with additives [62], which were recently evaluated by Schröder et al [63] and Mainar, et al [64,65]. Near-neutral chloride-based electrolytes have been experimentally evaluated by Zong and co-workers [43,44] with promising initial results.…”

Section: Challenges Progress and Opportunitiesmentioning

confidence: 96%

A Review of Model-Based Design Tools for Metal-Air Batteries

2018

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Abstract:The advent of large-scale renewable energy generation and electric mobility is driving a growing need for new electrochemical energy storage systems. Metal-air batteries, particularly zinc-air, are a promising technology that could help address this need. While experimental research is essential, it can also be expensive and time consuming. The utilization of well-developed theory-based models can improve researchers' understanding of complex electrochemical systems, guide development, and more efficiently utilize experimental resources. In this paper, we review the current state of metal-air batteries and the modeling methods that can be implemented to advance their development. Microscopic and macroscopic modeling methods are discussed with a focus on continuum modeling derived from non-equilibrium thermodynamics. An applied example of zinc-air battery engineering is presented.

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“…Aqueous potassium hydroxide (KOH) solution is extensively used in primary zinc-MnO 2 cells due to its high solubility of zinc salts and fast electrochemical kinetics 12 . However, there are some limitations in its practical usage in zinc-air batteries due to several disadvantages 13 . The side-reaction of hydrogen evolution, also known as corrosion of the zinc anode, leads to a decrease of discharge capacity.…”

Section: Introductionmentioning

confidence: 99%

Discharge Performance of Zinc-Air Flow Batteries Under the Effects of Sodium Dodecyl Sulfate and Pluronic F-127

Hosseini

Lao-atiman

Han

et al. 2018

Sci Rep

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Zinc-air batteries are a promising technology for large-scale electricity storage. However, their practical deployment has been hindered by some issues related to corrosion and passivation of the zinc anode in an alkaline electrolyte. In this work, anionic surfactant sodium dodecyl sulfate (SDS) and nonionic surfactant Pluronic F-127 (P127) are examined their applicability to enhance the battery performances. Pristine zinc granules in 7 M KOH, pristine zinc granules in 0–8 mM SDS/7 M KOH, pristine zinc granules in 0–1000 ppm P127/7 M KOH, and SDS coated zinc granules in 7 M KOH were examined. Cyclic voltammograms, potentiodynamic polarization, and electrochemical impedance spectroscopy confirmed that using 0.2 mM SDS or 100 ppm P127 effectively suppressed the anode corrosion and passivation. Nevertheless, direct coating SDS on the zinc anode showed adverse effects because the thick layer of SDS coating acted as a passivating film and blocked the removal of the anode oxidation product from the zinc surface. Furthermore, the performances of the zinc-air flow batteries were studied. Galvanostatic discharge results indicated that the improvement of discharge capacity and energy density could be sought by the introduction of the surfactants to the KOH electrolyte. The enhancement of specific discharge capacity for 30% and 24% was observed in the electrolyte containing 100 ppm P127 and 0.2 mM SDS, respectively.

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An overview of progress in electrolytes for secondary zinc-air batteries and other storage systems based on zinc

Cited by 302 publications

References 349 publications

Paper‐Based Disposable Zinc‐Vanadium Fuel Cell for Micropower Applications

Paper‐Based Disposable Zinc‐Vanadium Fuel Cell for Micropower Applications

A Review of Model-Based Design Tools for Metal-Air Batteries

Discharge Performance of Zinc-Air Flow Batteries Under the Effects of Sodium Dodecyl Sulfate and Pluronic F-127

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