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Showing papers on "Zinc published in 2022"


Journal ArticleDOI
01 Feb 2022
TL;DR: In this article , the authors comprehensively summarize the rational design strategies, and critically analyze the positive effects and potential issues in optimizing the electrochemistry, cathode materials, electrolytes and device architecture.
Abstract: In contemporary years, the increasing demand for high-capacity and safe energy storage has spurred wide attentions in zinc batteries featuring either high voltage, high capacity or both. Despite the extensive research progress, achieving high-energy-density zinc batteries is still challenging and requires a synergy of the multiple factors including reaction mechanisms, electrodes, and electrolytes. In this Review, we comprehensively summarize the rational design strategies, and critically analyze the positive effects and potential issues in optimizing the electrochemistry, cathode materials, electrolytes and device architecture. At the end, the challenges and prospects for the further development of high-energy-density zinc batteries are outlined to guide the research towards new-generation batteries for household appliance, low-speed electric vehicles and large-scale energy storage system.

274 citations


Journal ArticleDOI
TL;DR: In this article, ZnO NPs were synthesized from Synadium grantii leaf extricate with varying Cu-dopant concentrations, and the photocatalytic studies of the prepared samples were studied using Methylene blue (MB), Indigo Carmine (IC), and Rhodamine B (RhB) organic pollutants.

175 citations


Journal ArticleDOI
TL;DR: In this paper , high safety and low cost aqueous zinc-ion batteries (ZIBs) are presented for grid-scale energy storage, whereas the corrosion, hydrogen evolution reaction and dendrites growth of Zn anodes plague their...
Abstract: High‐safety and low‐cost aqueous zinc‐ion batteries (ZIBs) are an exceptionally compelling technology for grid‐scale energy storage, whereas the corrosion, hydrogen evolution reaction and dendrites growth of Zn anodes plague their...

171 citations


Journal ArticleDOI
TL;DR: In this paper , ZnO NPs were synthesized from Synadium grantii leaf extricate with varying Cu-dopant concentrations, and the photocatalytic studies of the prepared samples were studied using Methylene blue (MB), Indigo Carmine (IC), and Rhodamine B (RhB) organic pollutants.

170 citations


Journal ArticleDOI
TL;DR: In this paper, a cotton-derived cellulose film was used as the separator for aqueous zinc-ion batteries (Zn-MnO2), which can effectively inhibit zinc dendrites and harmful side reactions.

138 citations


Journal ArticleDOI
TL;DR: In this article , a highly-confined and hydrogen bond-strengthened tannic acid (TA) modified sodium alginate (SA) composite hydrogel electrolyte (TA-SA) was proposed.

128 citations


Journal ArticleDOI
TL;DR: In this article , the authors employed cotton-derived cellulose film prepared by a facile filtration method as the separator for aqueous zinc-ion batteries (AZIBs).

124 citations


Journal ArticleDOI
TL;DR: In this paper, a core-shell nickel-iron oxide on a highly porous N-doped carbon nanosheet (CS-NFO@PNC) via a facile solvothermal calcination route was developed for the development of high efficiency energy conversion and storage devices.
Abstract: Constructing an electrocatalyst with highly durable active and cost-effective core-shell with a porous carbon nanosheet for the development of high efficiency energy conversion and storage devices. Herein, we developed core-shell nickel-iron oxide on a highly porous N-doped carbon nanosheet (CS-NFO@PNC) via a facile solvothermal calcination route. The optimized CS-NFO@PNC-700 showed remarkable electrocatalytic activity towards ORR (0.85 V vs RHE), OER ƞ10 = 217 mV, and HER ƞ10 = 200 mV with excellent durability towards the corresponding half-cell reactions. Further, we investigated the ORR, OER, and HER mechanistic pathways of the electrocatalyst using the density functional theory. Finally, we fabricated a rechargeable liquid electrolyte-based zinc–air battery with CS-NFO@PNC-700 as the cathode which displayed an improved power density of 130 mW cm−2 at 217 mA cm−2 with excellent durability of 180 h. The rechargeable flexible quasi-solid-state zinc–air battery with CS-NFO@PNC-700 air cathode, which exhibited excellent long term durability over 40 h at 5 mA cm−2.

116 citations


Journal ArticleDOI
01 Jan 2022
TL;DR: In this paper , a core-shell nickel-iron oxide on a highly porous N-doped carbon nanosheet (CS-NFO@PNC) via a facile solvothermal calcination route was developed.
Abstract: Constructing an electrocatalyst with highly durable active and cost-effective core-shell with a porous carbon nanosheet for the development of high efficiency energy conversion and storage devices. Herein, we developed core-shell nickel-iron oxide on a highly porous N-doped carbon nanosheet (CS-NFO@PNC) via a facile solvothermal calcination route. The optimized CS-NFO@PNC-700 showed remarkable electrocatalytic activity towards ORR (0.85 V vs RHE), OER ƞ 10 = 217 mV, and HER ƞ 10 = 200 mV with excellent durability towards the corresponding half-cell reactions. Further, we investigated the ORR, OER, and HER mechanistic pathways of the electrocatalyst using the density functional theory. Finally, we fabricated a rechargeable liquid electrolyte-based zinc–air battery with CS-NFO@PNC-700 as the cathode which displayed an improved power density of 130 mW cm −2 at 217 mA cm −2 with excellent durability of 180 h. The rechargeable flexible quasi-solid-state zinc–air battery with CS-NFO@PNC-700 air cathode, which exhibited excellent long term durability over 40 h at 5 mA cm −2 . • Novel core-shell NFO@PNC was fabricated by a facile solvothermal calcination route. • CS-NFO@PNC-700 shows better ORR activity with E 1/2 of 0.85 V vs. RHE than 20% Pt-C. • CS-NFO@PNC-700 shows improved activity of OER (Eη 10 =217 mV) and HER (Eη 10 =200 mV). • CS-NFO@PNC-700 based zinc-air battery shows high power density and long life cycle. • Water splitting driven by CS-NFO@PNC-700 based zinc–air battery devices.

107 citations


Journal ArticleDOI
TL;DR: In this article , a non-concentrated aqueous zinc trifluoromethanesulfonate (Zn(OTF)2) electrolyte with 1,2-dimethoxyethane (DME) additive is used to simultaneously regulate the electrolyte structure and Zn interface chemistry.

96 citations


Journal ArticleDOI
TL;DR: In this paper , a self-regulated Zn/electrolyte interface with ammonium acetate (NH4OAc) additive was built to address the problems of Zn dendrite growth and side reactions.
Abstract: Aqueous zinc batteries, that demonstrate high safety and low cost, are considered promising candidates for large‐scale energy storage. However, Zn anodes suffer from rapid performance deterioration due to the severe Zn dendrite growth and side reactions. Herein, with a low‐cost ammonium acetate (NH4OAc) additive, a self‐regulated Zn/electrolyte interface is built to address these problems. The NH4+ induces a dynamic electrostatic shielding layer around the abrupt Zn protuberance to make the Zn deposition uniform, and the OAc− acts as an interfacial pH buffer to suppress the proton‐induced side reactions and the precipitation of insoluble by‐products. As a result, in the electrolyte with the NH4OAc additive, Zn anodes exhibit a long cycling stability of 3500 h at 1 mA cm−2, an impressive cumulative areal capacity of 5000 mAh cm−2 at 10 mA cm−2, and a high Coulombic efficiency of ≈99.7%. A prototype full cell coupled with a NH4V4O10 cathode performs much better in terms of capacity retention than the additive‐free case. The findings pave the way for developing practical Zn batteries.

Journal ArticleDOI
TL;DR: In this paper , a 2D Zn-based MOF, {Zn(5-PIA)(imbm)]·2H2O}n (1) (5-H2PIA = 5-propoxy-isophthalic acid, imbm = 1,4-di(1H-imidazol-1-yl)benzene), was synthesized and structurally characterized.
Abstract: A hydrostable 2D Zn-based MOF, {[Zn(5-PIA)(imbm)]·2H2O}n (1) (5-H2PIA = 5-propoxy-isophthalic acid, imbm = 1,4-di(1H-imidazol-1-yl)benzene), was synthesized and structurally characterized. Complex 1 shows good water and thermal stability based on the TGA and PXRD analyses and displays a 2D framework with 1D channels of 4.8 × 13.8 and 10.0 × 8.3 Å2 along the a axis. The 5-fluorouracil (5-FU) payload in activated complex 1 (complex 1a) is 19.3 wt%, and the cumulative release value of 5-FU at 120 h was about 70.04% in PBS (pH 7.4) at 310 K. In vitro MTT assays did not reveal any cytotoxic effect of NIH-3T3 and HEK-293 cells when the concentration of 1 was below 500 μg/mL and 5 μg/mL, respectively. No morphological abnormalities were observed on zebrafish exposed to complex 1.

Journal ArticleDOI
TL;DR: In this article , a separator (UiO-66-GF) modified by Zr-based metal organic framework for robust zinc-ion batteries is proposed, which 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.
Abstract: 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.

Journal ArticleDOI
TL;DR: In this article , a rechargeable aqueous Zn metal batteries hold exciting promise for next-generation grid-scale energy storage owing to their virtues of low cost, high safety, and eco-benignity.
Abstract: Rechargeable aqueous Zn metal batteries hold exciting promise for next-generation grid-scale energy storage owing to their virtues of low cost, high safety, and eco-benignity. However, the detrimental corrosion and dendrite...

Journal ArticleDOI
TL;DR: In this paper , a polyanionic hydrogel film is introduced as a protective layer on the Zn anode with the assistance of a silane coupling agent (denoted as Zn−SHn).
Abstract: The practical application of the Zn‐metal anode for aqueous batteries is greatly restricted by catastrophic dendrite growth, intricate hydrogen evolution, and parasitic surface passivation. Herein, a polyanionic hydrogel film is introduced as a protective layer on the Zn anode with the assistance of a silane coupling agent (denoted as Zn–SHn). The hydrogel framework with zincophilic –SO3− functional groups uniformizes the zinc ions flux and transport. Furthermore, such a hydrogel layer chemically bonded on the Zn surface possesses an anti‐catalysis effect, which effectively suppresses both the hydrogen evolution reaction and formation of Zn dendrites. As a result, stable and reversible Zn stripping/plating at various currents and capacities is achieved. A full cell by pairing the Zn–SHn anode with a NaV3O8·1.5 H2O cathode shows a capacity of around 176 mAh g−1 with a retention around 67% over 4000 cycles at 10 A g−1. This polyanionic hydrogel film protection strategy paves a new way for future Zn‐anode design and safe aqueous batteries construction.

Journal ArticleDOI
TL;DR: In this article , a charge-enriched strategy through MXene-based polypyrrole (MXene•mPPy) layers is explored toward dendrite-free Zn metal anode.
Abstract: Although zinc metal anodes have some intrinsic advantages for aqueous zinc ion batteries, the notorious dendrites hamper its practical applications. Herein, a charge‐enriched strategy through MXene‐based polypyrrole (MXene‐mPPy) layers is explored toward dendrite‐free Zn metal anode. The MXene‐mPPy layers composed of mesoporous PPy on both sides of Ti3C2Tx‐MXene exhibit an exceptional charge enrichment ability (149 F g−1, 5 mV s−1), which is beneficial not onlying terms of accumulating the charge levels, but also to homogenize the dispersions of electric field and ion flux as used as an artificial interface on a Zn anode. Thus, a dendrite‐free Zn anode with an ultralong cycling lifespan up to 2500 h and superior rate capability is achieved, which is further applied as an anode for aqueous zinc ion batteries with a long‐term span over 3000 cycles at 10 A g−1.

Journal ArticleDOI
01 Aug 2022-Joule
TL;DR: Chang Li et al. as mentioned in this paper developed novel electrolyte systems for Zn-exclusive intercalation cathodes and advanced anodes for aqueous zinc-ion batteries under the supervision of Professor Linda F. Nazar.

Journal ArticleDOI
TL;DR: In this paper, a review of zinc-ion battery side reactions is presented, focusing on corrosion and hydrogen evolution reactions at Zn surface, and recent advances and research efforts addressing detrimental side reactions are reviewed from the perspective of electrode design, electrode-electrolyte interfacial engineering and electrolyte modification.

Journal ArticleDOI
TL;DR: In this paper , a series of bi/multimetallic MOF•74 family materials in situ grown on carbon cloth (CC) by doping Mx+ ions in Ni•MOF−74 is fabricated: NiM−MOF@CC (M = Mn2+, Co2+, Cu2+, Zn2+, Al3+, Fe3+).
Abstract: Limited by single metal active sites and low electrical conductivity, designing nickel‐based metal–organic framework (MOF) materials with high capacity and high energy density remains a challenge. Herein, a series of bi/multimetallic MOF‐74 family materials in situ grown on carbon cloth (CC) by doping Mx+ ions in Ni‐MOF‐74 is fabricated: NiM‐MOF@CC (M = Mn2+, Co2+, Cu2+, Zn2+, Al3+, Fe3+), and NiCoM‐MOF@CC (M = Mn2+, Zn2+, Al3+, Fe3+). The type and ratio of doping metal ions can be adjusted while the original topology is preserved. Different metal ions are confirmed by X‐ray absorption fine structure (XAFS). Furthermore, these Ni‐based MOF electrodes are directly utilized as cathodes for aqueous nickel–zinc batteries (NZBs). Among all the as‐prepared electrodes, NiCo‐MOF@CC‐3 (NCM@CC‐3), with an optimized Co/Ni ratio of 1:1, exhibits the best electrical conductivity, which is according to the density functional theory (DFT) theoretical calculations. The NCM@CC‐3//Zn@CC battery achieves a high specific capacity of 1.77 mAh cm–2, a high areal energy density of 2.97 mWh cm–2, and high cycling stability of 83% capacity retention rate after 6000 cycles. The synthetic strategy based on the coordination effect of metal ions and the concept of binder‐free electrodes provide a new direction for the synthesis of high‐performance materials in the energy‐storage field.

Journal ArticleDOI
TL;DR: In this paper , an in-depth comprehensive and systematic summary of low-temperature zinc metal batteries (LTZMBs) with the main challenges and corresponding optimization strategies was provided. And promising perspectives have also been proposed, aiming to guide the scientific future development of LTZMB.
Abstract: The commercial application of aqueous zinc metal batteries in the field of large-scale energy storage is still suffered from their low-temperature operation, in which the electrochemical behaviors of the electrolyte, electrode materials, and their interfaces will deteriorate at low temperatures. Herein, by considering the significance of this topic, an in-depth comprehensive and systematic summary of low-temperature zinc metal batteries (LTZMBs) with the main challenges and corresponding optimization strategies was provided. Furthermore, the promising perspectives have also been proposed, aiming to guide the scientific future development of LTZMBs.

Journal ArticleDOI
TL;DR: In this article, the structure of zinc oxide nanoparticles (ZnO NPs) obtained from Thymbra Spicata L. plant by using green synthesis method in various ways was revealed.

Journal ArticleDOI
TL;DR: In this article , the authors proposed a generate strategy to eliminate the tip effect by utilizing the electrostatic shielding effect, which is achieved by coating Zn anodes with magnetron sputtered Al-based alloy protective layers.
Abstract: The uncontrolled zinc dendrite growth during plating leads to quick battery failure, which hinders the widespread applications of aqueous zinc-ion batteries. The growth of Zn dendrites is often promoted by the "tip effect". In this work, we propose a generate strategy to eliminate the "tip effect" by utilizing the electrostatic shielding effect, which is achieved by coating Zn anodes with magnetron sputtered Al-based alloy protective layers. The Al can form a surface insulating Al2O3 layer and by manipulating the Al content of Zn-Al alloy films, we are able to control the strength of the electrostatic shield, therefore realizing a long lifespan of Zn anodes up to 3000 h at a practical operating condition of 1.0 mA cm-2 and 1.0 mAh cm-2. In addition, the concept can be extended to other Al-based systems such as Ti-Al alloy and achieve enhanced stability of Zn anodes, demonstrating the generality and efficacy of our strategy.

Journal ArticleDOI
TL;DR: In this paper , the structure of zinc oxide nanoparticles (ZnO NPs) obtained from Thymbra Spicata L. plant by using green synthesis method in various ways was revealed.
Abstract: In this study, we tried to enlighten the structure of zinc oxide nanoparticles (ZnO NPs) obtained from Thymbra Spicata L. plant by using green synthesis method in various ways. Some properties of zinc oxide nanoparticles were determined by using the characterization methods that scanning electron microscopy (SEM), Energy Dispersive X-ray analysis (EDX), fouirer transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), ultraviolet visible spectroscopy (UV-Vis) spectroscopy methods. The detected Zn nanoparticle sizes were determined to be between 6.5 nm and 7.5 nm. In addition to these studies, we investigated the antimicrobial effects of zinc oxide nanoparticles obtained by green synthesis against some pathogens. According to the results, it was seen that zinc oxide nanoparticles formed zones with a diameter of 16.3 mm, 10.25 mm, 13 mm and 10.2 mm, respectively, against Bacillus subtilis ATCC 6633, Escherichia coli ATCC 25952, Pseudomonas aeruginosa ATCC 27853 bacteria and Candida albicans ATTC 90028 fungus, respectively. However, the radical quenching activity (DPPH) of the nanoparticles (Ts-ZnONP (79.67%)) was determined to be quite good compared to the positive control BHA. In addition, it is seen that the protective effect of ZnO NPs against DNA damage increases depending on the concentration. At a concentration of 100 mg/L, the DNA damage inhibitory effect was found to be maximum. In line with the comprehensive results, it was determined that the zinc oxide nanoparticles obtained with the green synthesis method have the potential of use in a wide variety of fields.

Journal ArticleDOI
TL;DR: In this paper , a high performance cathode for Zn-ion batteries, featuring high discharge capacity, high rate performance and long cycle life, has been proposed, where sulfur doped MnO 2 (S-MnO 2 ) nanosheets have been used as a cathode.

Journal ArticleDOI
TL;DR: In this article , the potential biomedical applications of green synthesized zinc oxide nanoparticles (ZnO-NPs) have been investigated, which shows that they have outstanding potential as a potent biological agent, as well as related hazardous properties.
Abstract: The field of nanotechnology is concerned with the creation and application of materials having a nanoscale spatial dimensioning. Having a considerable surface area to volume ratio, nanoparticles have particularly unique properties. Several chemical and physical strategies have been used to prepare zinc oxide nanoparticles (ZnO-NPs). Still, biological methods using green or natural routes in various underlying substances (e.g., plant extracts, enzymes, and microorganisms) can be more environmentally friendly and cost-effective than chemical and/or physical methods in the long run. ZnO-NPs are now being studied as antibacterial agents in nanoscale and microscale formulations. The purpose of this study is to analyze the prevalent traditional method of generating ZnO-NPs, as well as its harmful side effects, and how it might be addressed utilizing an eco-friendly green approach. The study’s primary focus is on the potential biomedical applications of green synthesized ZnO-NPs. Biocompatibility and biomedical qualities have been improved in green-synthesized ZnO-NPs over their traditionally produced counterparts, making them excellent antibacterial and cancer-fighting drugs. Additionally, these ZnO-NPs are beneficial when combined with the healing processes of wounds and biosensing components to trace small portions of biomarkers linked with various disorders. It has also been discovered that ZnO-NPs can distribute and sense drugs. Green-synthesized ZnO-NPs are compared to traditionally synthesized ones in this review, which shows that they have outstanding potential as a potent biological agent, as well as related hazardous properties.

Journal ArticleDOI
TL;DR: In this paper , a spontaneous construction of carbonyl-containing layer on a Zn anode (Zn@ZCO) is rationally designed as an ion redistributor and functional protective interphase.
Abstract: Multifunctional interfacial engineering on the Zn anode to conquer dendrite growth, hydrogen evolution, and the sluggish kinetics associated with Zn deposition is highly desirable for boosting the commercialization of aqueous zinc‐ion batteries. Herein, a spontaneous construction of carbonyl‐containing layer on a Zn anode (Zn@ZCO) is rationally designed as an ion redistributor and functional protective interphase. It has strong zincphilicity and dendrite suppression ability due to the significant interaction of the highly electronegative and highly nucleophilic carbonyl oxygen, favoring ion transport and homogenizing Zn deposition effectively. On the other side, the hydrogen bond formed by the proton acceptor of oxygen atom in ZCO regulates the Zn‐ion desolvation process at the interfaces, thus bounding water activity and then mitigating water‐induced parasitic reactions. Consequently, the Zn@ZCO anode exhibits an extended cycling lifespan of 5000 h (>208 days) with a dendrite‐free surface and negligible by‐products. More encouragingly, the effectiveness is also convincing in NH4V4O10‐based full‐cells with excellent rate performance and cyclic stability. The stabilized Zn anode enabled by the strategy of spontaneous construction of functional solid electrolyte interphase brings forward a facile and instructive approach toward high‐performance zinc‐storage systems.

Journal ArticleDOI
TL;DR: In this paper , a review of zinc-ion battery side reactions is presented, focusing on corrosion and hydrogen evolution reactions at Zn surface, and recent advances and research efforts addressing detrimental side reactions are reviewed from the perspective of electrode design, electrode-electrolyte interfacial engineering and electrolyte modification.

Journal ArticleDOI
TL;DR: In this paper, the current challenges and strategies for zinc metal anodes are presented, and recent advances in surface modification strategies to improve their electrochemical performance are concluded and discussed, as well as challenges and prospects for future development of Zn-ion batteries.

Journal ArticleDOI
TL;DR: In this article , the use of lanthanum nitrate (La(NO3)3) as supporting salt for aqueous zinc sulfate (ZnSO4) electrolyte solutions is proposed.
Abstract: Aqueous zinc batteries are appealing devices for cost-effective and environmentally sustainable energy storage. However, the zinc metal deposition at the anode strongly influences the battery cycle life and performance. To circumvent this issue, here we propose the use of lanthanum nitrate (La(NO3)3) as supporting salt for aqueous zinc sulfate (ZnSO4) electrolyte solutions. Via physicochemical and electrochemical characterizations, we demonstrate that this peculiar electrolyte formulation weakens the electric double layer repulsive force, thus, favouring dense metallic zinc deposits and regulating the charge distribution at the zinc metal|electrolyte interface. When tested in Zn||VS2 full coin cell configuration (with cathode mass loading of 16 mg cm-2), the electrolyte solution containing the lanthanum ions enables almost 1000 cycles at 1 A g-1 (after 5 activation cycles at 0.05 A g-1) with a stable discharge capacity of about 90 mAh g-1 and an average cell discharge voltage of ∼0.54 V.

Journal ArticleDOI
27 May 2022-ACS Nano
TL;DR: In this paper , a hydrophobic carbonate cosolvent was introduced into a dilute aqueous electrolyte to address the reversible issues facing Zn anodes than that with hydrophilic ones, and the formulated hybrid 2 m Zn(OTf)2 + 7 m DEC electrolyte endows the Zn electrode with an ability to achieve high cycling stability.
Abstract: Rechargeable aqueous zinc (Zn) batteries are promising for large-energy storage because of their low cost, high safety, and environmental compatibility, but their implementation is hindered by the severe irreversibility of Zn metal anodes as exemplified by water-induced side reactions (H2 evolution and Zn corrosion) and dendrite growth. Here, we find that the introduction of a hydrophobic carbonate cosolvent into a dilute aqueous electrolyte exhibits a much stronger ability to address the reversible issues facing Zn anodes than that with hydrophilic ones. Among the typical carbonates (ethylene carbonate, propylene carbonate, dimethyl carbonate, and diethyl carbonate (DEC)), DEC as the most hydrophobic additive enables the strongest breaking of water's H-bond network and replaces the solvating H2O in a Zn2+-solvation sheath, which significantly reduces the water activity and its decomposition. Additionally, DEC molecules preferentially adsorb onto the Zn surface to create an H2O-poor electrical double layer and render a dendrite-free Zn2+-plating behavior. The formulated hybrid 2 m Zn(OTf)2 + 7 m DEC electrolyte endows the Zn electrode with an ability to achieve high cycling stability (over 3500 h at 5 mA cm-2 with 2.5 mA h cm-2) and supports the stable operation of Zn||V2O5·nH2O full battery. This efficient strategy with hydrophobic cosolvent suggests a promising direction for designing aqueous battery chemistries.