An ion redistributor enabled by cost-effective weighing paper interlayer for dendrite free aqueous zinc-ion battery

Guo, Yi; Cai, Wenlong; Lin, Yi; Zhang, Yueying; Luo, Shuhong; Huang, Kaixin; Wu, Hao Bin; Zhang, Yun

doi:10.1016/j.ensm.2022.06.001

Cited by 64 publications

(44 citation statements)

References 36 publications

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“…This not only effectively accelerates the transmission of zinc-ions, but also uniformly distributes zinc-ions to the separator-zinc anode interface for highly reversible plating/stripping. To reduce the working cost and simplify the preparation process, new cost-effective separators, such as weighing paper (WP) [ 18 ] and commercial cotton towel (CT) [ 19 ], adsorb zinc-ions through their plenteous functional groups to enhance the reversibility of zinc anode. Metal–organic frameworks (MOFs) with large specific surface areas and topological structures are ideal materials for fabricating high-performance separators and have been applied in studies on lithium-sulfur (Li–S) batteries [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

et al. 2022

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Aqueous zinc-ion batteries (AZIBs) are one of the promising energy storage systems, which consist of electrode materials, electrolyte, and separator. The first two have been significantly received ample development, while the prominent role of the separators in manipulating the stability of the electrode has not attracted sufficient attention. In this work, a separator (UiO-66-GF) modified by Zr-based metal organic framework for robust AZIBs is proposed. UiO-66-GF effectively enhances the transport ability of charge carriers and demonstrates preferential orientation of (002) crystal plane, which is favorable for corrosion resistance and dendrite-free zinc deposition. Consequently, Zn|UiO-66-GF-2.2|Zn cells exhibit highly reversible plating/stripping behavior with long cycle life over 1650 h at 2.0 mA cm−2, and Zn|UiO-66-GF-2.2|MnO2 cells show excellent long-term stability with capacity retention of 85% after 1000 cycles. The reasonable design and application of multifunctional metal organic frameworks modified separators provide useful guidance for constructing durable AZIBs.

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Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

et al. 2022

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“…The Zn–LT@Zn corrosion potential increased from 2.98 to 16.97 mV relative to that of bare Zn, as revealed from the linear polarization curves (Figure 3h). [ 41 ] Besides, by performing fitting extrapolation, the corrosion current of Zn‐LT@Zn was calculated to be 0.2458 mA cm −2 , which is much smaller than that of bare Zn (1.2432 mA cm −2 ). The results indicated that the Zn‐LT protective layer could effectively enhance the corrosion resistance of Zn anode.…”

Section: Resultsmentioning

confidence: 99%

Cation‐Selective Interface for Kinetically Enhanced Dendrite‐Free Zn Anodes

Huo

Xie

et al. 2023

Advanced Energy Materials

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standard hydrogen electrode (SHE)], natural abundance, and excellent safety of Zn anode, aqueous zinc-ion batteries (AZIBs) have recently attracted considerable research attention. [1][2][3][4] Nevertheless, dendrite growth, corrosion, and passivation at the anode-electrolyte interface hinder the widespread practical application of AZIBs. [5,6] Specifically, cumulatively grown dendrites pierce the separator, resulting in poor battery performance and even fire hazards. Additionally, the accumulation of insulating products through interfacial side reactions and the hydrogen evolution reaction (HER) at Zn anodes can severely reduce the coulombic efficiency (CE) and unevenly deposit Zn. [7][8][9][10] Hence, efficient measures are urgently required to protect Zn anodes.Recently, several strategies such as surface modification [11][12][13] and electrolyte manipulation [14][15][16][17][18] have been developed to solve these problems. Surface modification by creating a protective layer onto the Zn surface gains wide attention on account of the merits of simple and effective. [19] Previous studies have generally emphasized that protective layers have significant effect on promoting uniform Zn 2+ ion distribution and preventing direct contact of Zn anode with electrolyte, thereafter contributing to dendrite-free and side reactioninhibited Zn anode. [20][21][22][23][24] Going further, it should be pointed out that Zn 2+ ion exists as hydrated [Zn(H 2 O) 6 ] 2+ ion structure in aqueous electrolyte and the desolvation process is necessary before Zn deposition. [3] Moreover, the detrimental HER directly relates to the amount of free water at the electrode-electrolyte interface. Besides, the side reaction-resulted passiviation byproduct is usually Zn 4 SO 4 (OH) 6 •xH 2 O (ZSH) in ZnSO 4 electrolyte, [6,10] which simultaneously involves SO 4 2− ions and water molecules. This is to say, decreasing the number of SO 4 2− ions and free water near the Zn-electrolyte interface is significantly important in the side reaction-inhibited chemistry, which, however, has rarely attracted much attention. [27] In addition, noting that hydrated [Zn(H 2 O) 6 ] 2+ ions own high charge density and easily combine with anions, the desolvation penalty impedes the homogeneous Zn 2+ ion diffusion on the Zn anode. [25,26] In this regard, creating an artificial protective interface that simultaneously with good cation-selectivity and superior desolvation role is vitally important for homo geneous and kinetically enhanced Zn deposition, as well as side reaction-inhibited Zn anode.The Zn anode in aqueous zinc-ion batteries (AZIBs) is severely impeded by uncontrolled dendrite growth and promiscuous water-induced side reactions, resulting in low Coulombic efficiency (CE) and poor lifetime. Herein, a versatile Zn-based laponite (Zn-LT) interface is constructed for uniform and rapid Zn deposition for long-life AZIBs. The combined experimental results and theoretical simulations reveal that the abundant negatively charged channels in the Zn-LT layer permit cat...

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“…It is worth noting that the charge−discharge curve of the Zn//Zn cell fails after 112 cycles at a current density of 1 mA cm −2 due to poor zincphilicity. 21 In addition, a higher current density (10 mA cm −2 ) was used to demonstrate fast charge−discharge stability. At high current densities, the cycle life of the Zn anode was only 75 h and the voltage hysteresis was 150 mV (Figure 2c).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Compared with bare Zn, the F-BG@Zn symmetric cells exhibited better performance in terms of voltage hysteresis and cycle life (Figures b and S5). It is worth noting that the charge–discharge curve of the Zn//Zn cell fails after 112 cycles at a current density of 1 mA cm –2 due to poor zincphilicity . In addition, a higher current density (10 mA cm –2 ) was used to demonstrate fast charge–discharge stability.…”

Section: Resultsmentioning

confidence: 99%

Strategically Constructing a Hydrophilic Interface toward Ultrastable Zinc Metal Anodes

Wang

Huang

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Aqueous zinc-ion storage devices have received increasing attention due to their inherent safety, high capacity, and cost-effectiveness. However, problems such as uneven Zn deposition, limited diffusion kinetics, and corrosion greatly reduce the cycling performance of zinc anodes. Here, a sulfonate-functionalized boron nitride/graphene oxide (F-BG) buffer layer is designed and utilized to modulate the plating/stripping behavior and mitigate the side reactions with the electrolyte. Benefiting from the synergistic effect of high electronegativity and abundant surface functional groups, the F-BG protective layer accelerates the ordered migration of Zn2+, homogenizes the Zn2+ flux, and effectively improves the reversibility of plating and nucleation with strong zincphilicity and dendrite-inhibiting capabilities. Further, electrochemical measurements and cryo-EM observations reveal the mechanism by which the interfacial wettability of the zinc negative electrode acts on capacity and cycling stability. Our work provides deeper insight into the influence of wettability on the energy storage properties and brings forward a facile and instructive way to construct stable zinc anodes for zinc-ion hybrid capacitors.

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An ion redistributor enabled by cost-effective weighing paper interlayer for dendrite free aqueous zinc-ion battery

Cited by 64 publications

References 36 publications

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

Cation‐Selective Interface for Kinetically Enhanced Dendrite‐Free Zn Anodes

Strategically Constructing a Hydrophilic Interface toward Ultrastable Zinc Metal Anodes

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