Uniformizing the electric field distribution and ion migration during zinc plating/stripping <i>via</i> a binary polymer blend artificial interphase

Li, Zhengang; Deng, Wenjun; Li, Chang; Wang, Weijian; Zhou, Zihao; Li, Yibo; Yuan, Xinran; Hu, Jun; Zhang, Man; Zhu, Jinlin; Tang, Wei; Wang, Xin; Li, Rui

doi:10.1039/d0ta05253a

Cited by 86 publications

(43 citation statements)

References 53 publications

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“…The dendrite formation would also deteriorate the cycle stability and CE, thus Zn dendrite inhibition is another urgent issue to be solved. [ 46 , 47 ] After 200 cycles, the zinc foil in 1 m ZnSO 4 electrolyte shows the micro‐slice morphology due to the uncontrolled zinc plating (Figure S14 , Supporting Information). In the dilute ZnCl 2 electrolyte, similarly, the zinc nanoflakes with sharp edges randomly disperse on the Zn foil.…”

Section: Resultsmentioning

confidence: 99%

Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte

et al. 2021

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Aqueous V 2 O 5 -Zn batteries, an alternative chemistry format that is inherently safer to operate than lithium-based batteries, illuminates the low-cost deployment of the stationary energy storage devices. However, the cathode structure collapse caused by H 2 O co-insertion in aqueous solution dramatically deteriorates the electrochemical performance and hampers the operation reliability of V 2 O 5 -Zn batteries. The real-time phase tracking and the density functional theory (DFT) calculation prove the high energy barrier that inhibits the Zn 2+ diffusion into the bulk V 2 O 5 , instead the ZnCl 2 "water-in-salt electrolyte" (WiSE) can enable the dominant proton insertion with negligible lattice strain or particle fragment. Thus, ZnCl 2 WiSE enables the enhanced reversibility and extended shelf life of the V 2 O 5 -Zn battery upon the high temperature storage. The improved electrochemical performance also benefits by the inhibition of vanadium cation dissolution, enlarged voltage window, as well as the suppression of the Zn dendrite protrusion. This study comprehensively elucidates the pivotal role of a concentrated ZnCl 2 electrolyte to stabilize the aqueous batteries at both the static storage and dynamic operation scenarios.

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Section: Resultsmentioning

confidence: 99%

Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte

et al. 2021

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“…In addition to constructing intuitive confined channels to mechanically change the concentration field, many organic materials can directly and selectively manipulate the migration of Zn 2+ ions to redistribute concentration field with the assistance of their specific polar groups (Fig. 4 a), such as the amide group in polyamide (PA) [ 43 ], the poly(vinyl alcohol) group in poly(vinyl butyral) (PVB) [ 41 ], the carbonyl group in polyimide [ 49 ], the amide group and pyrrolidone group in polyacrylamide (PAM)/polyvinylpyrrolidone (PVP) [ 61 ], and the cyano group in cyanoacrylate [ 62 ] or polyacrylonitrile (PAN) [ 63 ]. These polar groups can donate electron pairs, which can guide coordination adsorption through strong interaction with Zn 2+ ions (Fig.…”

Section: Design and Optimization Of High-performance Zn Anode In Mild Aqueous Zibsmentioning

confidence: 99%

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

et al. 2022

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The rapid advance of mild aqueous zinc-ion batteries (ZIBs) is driving the development of the energy storage system market. But the thorny issues of Zn anodes, mainly including dendrite growth, hydrogen evolution, and corrosion, severely reduce the performance of ZIBs. To commercialize ZIBs, researchers must overcome formidable challenges. Research about mild aqueous ZIBs is still developing. Various technical and scientific obstacles to designing Zn anodes with high stripping efficiency and long cycling life have not been resolved. Moreover, the performance of Zn anodes is a complex scientific issue determined by various parameters, most of which are often ignored, failing to achieve the maximum performance of the cell. This review proposes a comprehensive overview of existing Zn anode issues and the corresponding strategies, frontiers, and development trends to deeply comprehend the essence and inner connection of degradation mechanism and performance. First, the formation mechanism of dendrite growth, hydrogen evolution, corrosion, and their influence on the anode are analyzed. Furthermore, various strategies for constructing stable Zn anodes are summarized and discussed in detail from multiple perspectives. These strategies are mainly divided into interface modification, structural anode, alloying anode, intercalation anode, liquid electrolyte, non-liquid electrolyte, separator design, and other strategies. Finally, research directions and prospects are put forward for Zn anodes. This contribution highlights the latest developments and provides new insights into the advanced Zn anode for future research.

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“…Theoretical analysis shows that the polymer coating can inhibit the Zn dendrite growth in aqueous electrolytes by utilizing the mechanical suppression effect from the porous skeleton and the fast ion diffusion kinetics. [107] Polyacrylamide (PAM)/polyvinylpyrrolidone (PVP) coated Zn anode was explored by Li et al [108] The PAM with large molecule weight guarantees the strong adhesion of the coating to the Zn anode. And the PVP contains a stable pendant five-membered ring.…”

Section: Polymer Coatingsmentioning

confidence: 99%

Surface and Interface Engineering of Zn Anodes in Aqueous Rechargeable Zn‐Ion Batteries

Zheng

Huang

Ming

et al. 2022

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Rechargeable zinc-ion batteries (ZIBs) have shown great potential as an alternative to lithium-ion batteries. The ZIBs utilize Zn metal as the anode, which possesses many advantages such as low cost, high safety, eco-friendliness, and high capacity. However, on the other hand, the Zn anode also suffers from many issues, including dendritic growth, corrosion, and passivation. These issues are largely related to the surface and interface properties of the Zn anode. Many efforts have therefore been devoted to the modification of the Zn anode, aiming to eliminate the above-mentioned problems. This review gives a comprehensive summary on the mechanism behind these issues as well as the recent progress on Zn anode modification with focus on the strategies of surface and interface engineering, covering the design and application of both the Zn anode supports and surface protective layers, along with abundant examples. In addition, the promising research directions and perspective on these strategies are also presented.

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Uniformizing the electric field distribution and ion migration during zinc plating/stripping via a binary polymer blend artificial interphase

Abstract: Aqueous zinc hybrid capacitors are receiving intensive scientific interest for their merits of both capacitors and batteries in achieving safety, high power and energy density as well as long cycle...

Cited by 86 publications

References 53 publications

Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte

Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

Surface and Interface Engineering of Zn Anodes in Aqueous Rechargeable Zn‐Ion Batteries

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Uniformizing the electric field distribution and ion migration during zinc plating/stripping via a binary polymer blend artificial interphase

Abstract: Aqueous zinc hybrid capacitors are receiving intensive scientific interest for their merits of both capacitors and batteries in achieving safety, high power and energy density as well as long cycle...

Cited by 86 publications

References 53 publications

Unveiling the Reversibility and Stability Origin of the Aqueous V2O5–Zn Batteries with a ZnCl2 “Water‐in‐Salt” Electrolyte

Unveiling the Reversibility and Stability Origin of the Aqueous V2O5–Zn Batteries with a ZnCl2 “Water‐in‐Salt” Electrolyte

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

Surface and Interface Engineering of Zn Anodes in Aqueous Rechargeable Zn‐Ion Batteries

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Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte

Unveiling the Reversibility and Stability Origin of the Aqueous V₂O₅–Zn Batteries with a ZnCl₂ “Water‐in‐Salt” Electrolyte