An experimental study of zinc morphology in alkaline electrolyte at low direct and pulsating overpotentials

Simičić, Miloš V.; Popov, Konstantin; Krstajić, N.V.

doi:10.1016/s0022-0728(00)00035-8

Cited by 21 publications

(8 citation statements)

References 22 publications

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“…The combined results indicate that zinc nucleation sites correlate to the surface roughness, and electrochemical properties. 6,[12][13][14] The displacement reaction between anodic aluminum and cathodic zinc ion continues at a considerably fast rate, resulting in the formation of large zinc particles near the dissolution holes as seen in Fig. 5.…”

Section: Resultsmentioning

confidence: 99%

Nucleation and Growth of Zinc Particles on an Aluminum Substrate in a Zincate Process

Lee

Kim

2007

Journal of Elec Materi

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The nucleation and growth of zinc particles during a conventional zincate process were investigated. Zinc particles preferentially nucleated on the peak or edge of an aluminum surface and preferentially grew with the (0001) plane on hexagonal platelets, forming localized islands. Zinc particles were found to have characteristic orientations and shapes which were dependent on the bath temperature. The increase in temperature in a zincating bath caused the shape and orientation to change from hexagonal (0001) to a starfish-like shape.

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Section: Resultsmentioning

confidence: 99%

Nucleation and Growth of Zinc Particles on an Aluminum Substrate in a Zincate Process

Lee

Kim

2007

Journal of Elec Materi

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“…There have been several fundamental efforts to understand the behavior of the zincate ion in an alkaline electrolyte [ 3 , 135-138 ] and also to understand the electrodeposition of the zincate ion. [139][140][141][142][143][144][145][146][147] Dirkse suggested that Zn(OH) 4 2 or polynuclear species may exist in supersaturated zincate solutions and that the existence of these species depends on the availability of OH − and free H 2 O molecules in the electrolyte. [ 137 ] Peng studied the mechanism of zinc electroplating and suggested that Zn(OH) 2 became Zn(OH) ad by gaining one electron and then Zn(OH) ad was reduced to Zn by gaining a second electron.…”

Section: Anode: Zinc Electrodementioning

confidence: 99%

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,008

1,216

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In the past decade, there have been exciting developments in the fi eld of lithium ion batteries as energy storage devices, resulting in the application of lithium ion batteries in areas ranging from small portable electric devices to large power systems such as hybrid electric vehicles. However, the maximum energy density of current lithium ion batteries having topatactic chemistry is not suffi cient to meet the demands of new markets in such areas as electric vehicles. Therefore, new electrochemical systems with higher energy densities are being sought, and metal-air batteries with conversion chemistry are considered a promising candidate. More recently, promising electrochemical performance has driven much research interest in Li-air and Zn-air batteries. This review provides an overview of the fundamentals and recent progress in the area of Li-air and Zn-air batteries, with the aim of providing a better understanding of the new electrochemical systems.

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“…Zinc dendrites, which are defined as sharp, needle‐like metallic protrusions, are triggered by the inhomogeneous zinc plating during the charging process. [ 17 ] In alkaline media, the occurrence of zinc dendrites is resulting from zinc concentration‐controlled electrodeposition, whereby a positively sloped concentration gradient of Zn(OH) 4 2− ions is established as a function of distance from the zinc surface. Specifically, Zn(OH) 4 2− ions prefer to deposit at the districts with initially high concentration of zincate and the succeeding zinc nucleation spontaneously takes place at the existed protrusions due to their larger surface energy, which gradually evolves into zinc dendrites.…”

Section: The Zinc Metal Anodementioning

confidence: 99%

Challenges and Strategies for Constructing Highly Reversible Zinc Anodes in Aqueous Zinc‐Ion Batteries: Recent Progress and Future Perspectives

Liu

et al. 2020

Advanced Sustainable Systems

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Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention as a next‐generation energy storage system because of their inherent safety, high capacity, and cost effectiveness. However, the poor cycling durability and low coulombic efficiency of zinc anodes substantially restrict their further development, which should be attributed to the severe dendrite growth, shape change, surface passivation, self‐corrosion, and byproduct formation across the repeated plating/stripping processes. To address these critical issues, great efforts have been dedicated to the rational design of zinc anodes. In this review, different strategies for the performance improvement of zinc anodes are summarized as well as recent research that boosts their development. These methods include the surface modification, novel host‐anode development for zinc, electrolyte formulation, and separator design. Their respective advantages and defects are compared and discussed in detail. The challenges and further prospects in this field are also addressed. This work is designed to shed light on advanced zinc anode constructions for high‐performance AZIBs assembly.

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An experimental study of zinc morphology in alkaline electrolyte at low direct and pulsating overpotentials

Cited by 21 publications

References 22 publications

Nucleation and Growth of Zinc Particles on an Aluminum Substrate in a Zincate Process

Nucleation and Growth of Zinc Particles on an Aluminum Substrate in a Zincate Process

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Challenges and Strategies for Constructing Highly Reversible Zinc Anodes in Aqueous Zinc‐Ion Batteries: Recent Progress and Future Perspectives

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