Technologies for extending zinc–air battery’s cyclelife: A review

Pei, Pucheng; Wang, Keliang; Ma, Ze

doi:10.1016/j.apenergy.2014.04.095

Cited by 403 publications

(234 citation statements)

References 102 publications

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“…Many attempts have been made in order to improve the appearance and physico-chemical properties of the deposits by introducing various organic and inorganic additives [24][25][26][27]. However, the effect of electrolyte concentration on the current efficiency of the alkaline zinc processes together with temperature and especially electrolyte flow velocity on the resultant morphological properties, to the best of our knowledge have not been reported quantitatively in the literature [28][29][30][31]. Therefore, this work is focused on the morphology of zinc electrodeposited from different additive-free alkaline zincate solutions which can be utilized in the rechargeable zinc-air flow batteries.…”

mentioning

confidence: 76%

Effects of Electrolyte Concentration, Temperature, Flow Velocity and Current Density on Zn Deposit Morphology

Gavrilović-Wohlmuther¹,

Laskos²,

Zelger³

et al. 2015

JEPE

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Abstract:The most critical disadvantages of the Zn-air flow battery system are corrosion of the zinc, which appears as a high self-discharge current density and a short cycle life due to the non-uniform, dendritic, zinc electrodeposition that can lead to internal short-circuit. In our efforts to find a dendrite-free Zn electrodeposition which can be utilized in the Zn-air flow battery, the surface morphology of the electrolytic Zn deposits on a polished polymer carbon composite anode in alkaline, additive-free solutions was studied. Experiments were carried out with 0.1 M, 0.2 M and 0.5 M zincate concentrations in 8 M KOH. The effects of different working conditions such as: elevated temperatures, different current densities and different flow velocities, on current efficiency and dendrite formation were investigated. Specially designed test flow-cell with a central transparent window was employed. The highest Coulombic efficiencies of 80%-93% were found for 0.5 M ZnO in 8 M KOH, at increased temperatures (50-70 °C), current densities of up to 100 mA·cm -2 and linear electrolyte flow velocities higher than 6.7 cm·s -1 .

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mentioning

confidence: 76%

Effects of Electrolyte Concentration, Temperature, Flow Velocity and Current Density on Zn Deposit Morphology

Gavrilović-Wohlmuther¹,

Laskos²,

Zelger³

et al. 2015

JEPE

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“…In order to avoid load peaks as well as bottlenecks in the power supply, energy storage devices are crucial to increase energy efficiency and availability inside the electrical grid [1,2]. In addition to commercially available electrically rechargeable batteries, such as lead-acid, nickel-cadmium, nickel-metal hydride, or lithium-ion batteries, the zinc-air battery is considered as a promising candidate due to its high specific energy (1350 Wh kg −1 ), good environmental compatibility, low cost, and safety [3][4][5][6][7][8]. However, a crucial disadvantage is its low cyclability.…”

Section: Introductionmentioning

confidence: 99%

“…However, a crucial disadvantage is its low cyclability. Thus, zinc-air batteries are mainly applied as primary batteries, e.g., in the form of button cells, which are, e.g., used in medical devices [3,9,10]. Beside the development of highly efficient bifunctional oxygen electrocatalysts on the cathode side [11], the degradation of the zinc anode is a major concern regarding rechargeability.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Coating of Zinc Particles with Bi2O3-Li2O-ZnO Glasses as Anode Material for Rechargeable Zinc-Based Batteries

et al. 2018

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Abstract:The electrochemical performance of zinc particles with 250 µm and 30 µm diameters, coated with Bi 2 O 3 -Li 2 O-ZnO glass is investigated and compared with noncoated zinc particles. Galvanostatic investigations were conducted in the form of complete discharge and charging cycles in electrolyte excess. Coated 30 µm zinc particles provide the best rechargeability after complete discharge. The coatings reached an average charge capacity over 20 cycles of 113 mAh/g compared to the known zero rechargeability of uncoated zinc particles. Proposed reasons for the prolonged cycle life are effective immobilization of discharge products in the glass layer and the formation of percolating metallic bismuth and zinc phases, forming a conductive network through the glass matrix. The coating itself is carried out by mechanical ball milling. Different coating parameters and the resulting coating quality as well as their influence on the passivation and on the rechargeability of zinc-glass composites is investigated. Optimized coating qualities with respect to adhesion, homogeneity and compactness of the glass layer are achieved at defined preparation conditions, providing a glass coating content of almost 5 wt % for 250 µm zinc particles and almost 11 wt % for 30 µm zinc particles.

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“…They are particularly suitable for low-current applications like hearing aids. However, their calendar life and electrical rechargeability is limited [42]. One major advantage of Zn as an electrode material is that, unlike Li, it is stable in water.…”

Section: Introductionmentioning

confidence: 99%

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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Technologies for extending zinc–air battery’s cyclelife: A review

Cited by 403 publications

References 102 publications

Effects of Electrolyte Concentration, Temperature, Flow Velocity and Current Density on Zn Deposit Morphology

Effects of Electrolyte Concentration, Temperature, Flow Velocity and Current Density on Zn Deposit Morphology

Mechanical Coating of Zinc Particles with Bi2O3-Li2O-ZnO Glasses as Anode Material for Rechargeable Zinc-Based Batteries

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

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