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

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Nov. 9, 2022

Aqueous zinc-ion batteries (AZIBs) are one of the promising energy storage systems, which consist electrode materials, electrolyte, and separator. The first two have been significantly received ample development, while prominent role separators in manipulating stability 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 transport ability charge carriers demonstrates preferential orientation (002) crystal plane, favorable corrosion resistance 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, Zn|UiO-66-GF-2.2|MnO2 show excellent long-term capacity retention 85% after 1000 cycles. reasonable design application multifunctional frameworks provide useful guidance constructing durable AZIBs.

Language: Английский

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Spontaneous Construction of Nucleophilic Carbonyl‐Containing Interphase toward Ultrastable Zinc‐Metal Anodes

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(33)

Published: June 24, 2022

Multifunctional interfacial engineering on the Zn anode to conquer dendrite growth, hydrogen evolution, and sluggish kinetics associated with deposition is highly desirable for boosting commercialization of aqueous zinc-ion batteries. Herein, a spontaneous construction carbonyl-containing layer (Zn@ZCO) rationally designed as an ion redistributor functional protective interphase. It has strong zincphilicity suppression ability due significant interaction electronegative nucleophilic carbonyl oxygen, favoring transport homogenizing effectively. On other side, bond formed by proton acceptor oxygen atom in ZCO regulates Zn-ion desolvation process at interfaces, thus bounding water activity then mitigating water-induced parasitic reactions. Consequently, Zn@ZCO exhibits extended cycling lifespan 5000 h (>208 days) dendrite-free surface negligible by-products. More encouragingly, effectiveness also convincing NH4 V4 O10 -based full-cells excellent rate performance cyclic stability. The stabilized enabled strategy solid electrolyte interphase brings forward facile instructive approach toward high-performance zinc-storage systems.

Language: Английский

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Gradient design of imprinted anode for stable Zn-ion batteries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 6, 2023

Achieving long-term stable zinc anodes at high currents/capacities remains a great challenge for practical rechargeable zinc-ion batteries. Herein, we report an imprinted gradient electrode that integrates conductivity and hydrophilicity dendrite-free The design not only effectively prohibits side reactions between the electrolyte anode, but also synergistically optimizes electric field distribution, ion flux local current density, which induces preferentially deposited in bottom of microchannels suppresses dendrite growth even under densities/capacities. As result, anode can be stably cycled 200 h density/capacity 10 mA cm-2/10 mAh cm-2, with cumulative capacity 1000 outperforms none-gradient counterparts bare zinc. easily scaled up, high-performance large-area pouch cell (4*5 cm2) is demonstrated.

Language: Английский

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Functional Ultrathin Separators Proactively Stabilizing Zinc Anodes for Zinc‐Based Energy Storage

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(18)

Published: Feb. 14, 2023

Ultrathin separators are indispensable to high-energy-density zinc-ion batteries (ZIBs), but their easy failure caused by zinc dendrites poses a great challenge. Herein, 23 µm-thick functional ultrathin (FUSs), realizing superb electrochemical stability of anodes and outstanding long-term durability separators, reported. In the FUSs, an mechanically strong nanoporous membrane substrate benefits fast flux-homogenized Zn2+ transport, while metal-organic framework (MOF)-derived C/Cu nanocomposite decoration layer provides rich low-barrier nucleation sites, thereby synergistically stabilizing inhibit dendrite-caused separator failure. Investigation affinity MOF-derived nanocomposites unravels high zincophilicity heteroatom-containing interfaces. Zinc coupled with FUSs present superior stability, whose operation lifetime exceeds 2000 h at 1 mA cm-2 600 10 , 40-50 times longer than that using glass-fiber separators. The reliability in ZIBs hybrid supercapacitors is also validated. This work proposes new strategy stabilize theoretical guidance developing for zinc-based energy storage.

Language: Английский

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Nonepitaxial Electrodeposition of (002)‐Textured Zn Anode on Textureless Substrates for Dendrite‐Free and Hydrogen Evolution‐Suppressed Zn Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(21)

Published: March 2, 2023

Nontoxic and safe aqueous Zn batteries are largely restricted by the detrimental dendrite growth hydrogen evolution of metal anode. The (002)-textured electrodeposition, demonstrated as an effective approach for solving these issues, is nevertheless achieved mainly epitaxial or hetero-epitaxial deposition on pre-textured substrates. Herein, electrodeposition compact textureless substrates (commercial Zn, Cu, Ti foils) at a medium-high galvanostatic current density reported. According to systematic investigations nucleation behaviors, this ascribed two reasons: i) promoted nonepitaxial fine horizontal (002) nuclei increased overpotential ii) competitive advantages (002)-orientated nuclei. resulting freestanding film exhibits significantly suppressed prolonged plating-stripping cycling life, achieving over 2100 mAh cm-2 cumulative capacity under 10 mA high depth discharge (DOD) 45.5%. Therefore, study provides both fundamental practical insights into long-life batteries.

Language: Английский

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Formation of CuMn Prussian Blue Analog Double‐Shelled Nanoboxes Toward Long‐Life Zn‐ion Batteries

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(48)

Published: Sept. 30, 2022

Prussian blue analogs (PBAs) are promising candidates for aqueous Zn-ion batteries due to their unique open-framework structures. However, they suffer from limited capacity and severe decay originating insufficient redox sites structural instability. Herein, Cu-substituted Mn-PBA double-shelled nanoboxes (CuMn-PBA DSNBs) prepared by tannic acid etching cation exchange approaches demonstrated efficient Zn ion storage. The hollow structures can expose abundant active alleviate the volume change during cycling test. Moreover, partial Cu substitution induced Mn vacancies might inhibit Jahn-Teller distortions of Mn-N6 octahedra, thus contributing prolonged lifespan. As a result, CuMn-PBA DSNBs exhibit high reversible capacity, decent rate performance superior stability 2000 cycles. Furthermore, ex situ characterizations reveal that charge storage mechanism mainly involves reactions transition metals Zn2+ insertion/extraction processes.

Language: Английский

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Crystallographic engineering of Zn anodes for aqueous batteries

eScience, Journal Year: 2023, Volume and Issue: 3(3), P. 100120 - 100120

Published: March 22, 2023

With their intrinsic safety and environmental benignity, aqueous Zn-ion batteries (ZIBs) have been considered the most appropriate candidates for replacing alkali metal systems. However, polycrystalline Zn anodes in environments still pose enormous issues, such as dendrite growth side reactions. Although many efforts made to address these obstacles through interphase modification electrolyte design, researchers not able improve inherent thermodynamic stability ion deposition behavior of anode. It is imperative understand explore advanced anode construction methods from perspective crystallinity. This review delves into feasibility precisely regulating crystallographic features metallic zinc, examines challenges merits reported strategies fabricating textured offers constructive suggestions large-scale production commercial application ZIBs.

Language: Английский

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Planar and dendrite-free zinc deposition enabled by exposed crystal plane optimization of zinc anode

Energy storage materials, Journal Year: 2022, Volume and Issue: 53, P. 273 - 304

Published: Sept. 7, 2022

Language: Английский

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Aqueous zinc-ion batteries at extreme temperature: Mechanisms, challenges, and strategies

Energy storage materials, Journal Year: 2022, Volume and Issue: 51, P. 683 - 718

Published: July 5, 2022

Language: Английский

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Atomically Dispersed Zincophilic Sites in N,P-Codoped Carbon Macroporous Fibers Enable Efficient Zn Metal Anodes

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(22), P. 12333 - 12341

Published: May 26, 2023

Zn dendrite growth and undesired parasitic reactions severely restrict the practical use of deep-cycling metal anodes (ZMAs). Herein, we demonstrate an elaborate design atomically dispersed Cu sites anchored on N,P-codoped carbon macroporous fibers (denoted as Cu/Zn-N/P-CMFs) a three-dimensional (3D) versatile host for efficient ZMAs in mildly acidic electrolyte. The 3D frameworks can alleviate structural stress suppress by spatially homogenizing Zn2+ flux. Moreover, well-dispersed atoms N P maximize utilization abundant active nucleation plating. As expected, Cu/Zn-N/P-CMFs presents low overpotential, high reversibility, dendrite-free deposition. Cu/Zn-N/P-CMFs-Zn electrode exhibits stable plating/stripping with polarization 630 h at 2 mA cm-2 mAh cm-2. When coupled MnO2 cathode, fabricated full cell also shows impressive cycling performance even when tested under harsh conditions.

Language: Английский

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