Morphological evolution of mossy structures during the electrodeposition of zinc from an alkaline zincate solution

Otani, Tomohiro; Nagata, Minoru; Fukunaka, Yasuhiro; Homma, Takayuki

doi:10.1016/j.electacta.2016.04.124

Cited by 57 publications

(59 citation statements)

References 24 publications

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“…When the local protrusions form, the 2D growth of microsteps toward lateral directions will stop and 1D growth of Zn filaments will govern. [ 60 ]…”

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

“…The schematic in Figure 9a shows how the mossy Zn becomes the governing structure when initiated. [ 60 ] Layer‐like structure is deposited under a uniform current density distribution; once the formation of mossy structure is initiated, it preferentially evolves. As deposition is performed under galvanostatic condition, introduction of mossy Zn leads to continuous increase in surface area, which induces local variation of current density.…”

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

“…Research has been performed to understand the transition between 2D layered deposition of Zn and 1D mossy dendrites observed at low and intermediate current densities (<15 mAh cm −2 ). [ 60–62 ] It is suggested that the formation of porous ZnO on the Zn surface leads to the inhomogeneous current distribution and formation of Zn dendrites at low current densities. [ 63 ] Figure b shows the effect of current density on the observed microstructural evolution in Zn electrodeposition process.…”

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

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Dendritic Zn Deposition in Zinc‐Metal Batteries and Mitigation Strategies

Jabbari

Foroozan

Shahbazian‐Yassar

2021

Adv Energy and Sustain Res

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As one of the most promising energy storage technologies, zinc (Zn)‐metal batteries (ZMBs) have attracted significant attention due to outstanding properties of Zn, including high energy density (820 mAh g−1/5855 mAh cm−3), abundance, low cost, low reactivity, multielectron redox capacity, compatibility with aqueous electrolytes, low equilibrium potential (−0.76 V vs SHE), stability, safety, and environmental benignity. Yet, the existence of some major issues such as surface‐originated parasitic reactions (e.g., corrosion and H2 evolution), formation of dead Zn, and oxide passivation leading to capacity loss in ZMBs are hindering their full potential applications. Addressing these challenges requires profound understanding of mechanism of Zn dendrites formation. Therefore, the aim of the current study is to assess some of the latest challenges and advancements concerning ZMBs, with an emphasis on origin and growth mechanism of Zn dendrites. Herein, it is demonstrated that the Zn electrodeposition does not follow a simple reaction/diffusion limited behavior, and other parameters such as surface energy and surface diffusion barrier play great roles on the morphology and microstructure of the deposited Zn. In addition, recent advances to mitigate Zn dendrite issues by applying modifications on the design of electrode, electrolyte, separator and interface are discussed.

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“…When the local protrusions form, the 2D growth of microsteps toward lateral directions will stop and 1D growth of Zn filaments will govern. [ 60 ]…”

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

Section: Understanding Zn Dendrite Formation and Growthmentioning

confidence: 99%

See 2 more Smart Citations

Dendritic Zn Deposition in Zinc‐Metal Batteries and Mitigation Strategies

Jabbari

Foroozan

Shahbazian‐Yassar

2021

Adv Energy and Sustain Res

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“…Zn deposition proceeds in form of mossy and dendrite structures in low and high current densities, respectively. 3 Various efforts have been devoted to achieving smooth Zn deposition, such as the introduction anionexchange ionomer 4 , the use of organic electrolytes 5 or surfactants in an aqueous system 6,7 , the optimization of substrates 8 , and the construction of matrix accommodating Zn shape changes 9 . In our previous studies, we demonstrated that a simple method, the addition of trimethyloctadecylammonium chloride (STAC) to an alkaline electrolyte solution (0.25 M ZnO/4M KOH), is an effective way to suppress and mitigate significantly irregular shape changes in the wide current density ranges from 5 to 40 mA cm −2 .…”

Section: Introductionmentioning

confidence: 99%

Communication—Alkyl-Chain-Length Dependence of Quaternary Ammonium Cation on Zn Deposition Morphology in Alkaline-Based Electrolytes

Shimizu

Hirahara

Ishida

2019

J. Electrochem. Soc.

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The Influence of alkyl chain length in quaternary ammonium cations on electrochemical Zn growth morphology in alkaline-based electrolytes was systematically investigated under constant current density. Mossy structures that typically developed at low current density were mitigated in an electrolyte with 1 mM octyltrimethylammonium chloride. By changing from octyl to decyl group in the surfactant, completely smooth deposition morphology was achieved.Electrochemical impedance spectroscopic analysis revealed that charge transfer resistance associated with Zn deposition increased with alkyl chain length. The obtained results indicate that bulky ammonium cations suppress excess electrodeposition due to the steric hindrance effect and thereby result in smooth morphology.

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A Trifunctional Electrolyte Enables Aqueous Zinc Ion Batteries with Long Cycling Performance

Ding,

Yin,

et al. 2024

Adv Funct Materials

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Aqueous zinc ion batteries hold promise as alternative systems to lithium‐based batteries. However, practical development faces critical challenges due to parasitic side reactions and dendrite growth in zinc anodes. While introducing electrolyte additives is promising, monofunctional additives offer limited protection to the zinc anode from a single aspect. Herein, a disodium succinate additive is presented to establish a hydrophobic and zincophilic dual electric layer structure on the Zn surface, regulate the solvation structure of Zn2+, and act as a pH buffer during cycling. As a result, the symmetrical cell with an electrolyte containing 0.2 m SADS shows a durable life of over 2200 h, and the Zn||MnO2 full cell still maintains an 80% capacity retention after 1000 cycles. In addition, SADS both show wide applicability in the match with NVO and I2 cathode. This work provides a low‐cost and multifunctional electrolyte additive, facilitating the development of high‐performance aqueous zinc ion batteries.

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Morphological evolution of mossy structures during the electrodeposition of zinc from an alkaline zincate solution

Cited by 57 publications

References 24 publications

Dendritic Zn Deposition in Zinc‐Metal Batteries and Mitigation Strategies

Dendritic Zn Deposition in Zinc‐Metal Batteries and Mitigation Strategies

Communication—Alkyl-Chain-Length Dependence of Quaternary Ammonium Cation on Zn Deposition Morphology in Alkaline-Based Electrolytes

A Trifunctional Electrolyte Enables Aqueous Zinc Ion Batteries with Long Cycling Performance

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