Recent Progress on Zn Anodes for Advanced Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(28)

Published: June 17, 2023

Abstract Aqueous Zn‐ion batteries (AZIBs) have attracted much attention due to their excellent safety, cost‐effectiveness, and eco‐friendliness thereby being considered as one of the most promising candidates for large‐scale energy storage. Zn metal anodes with a high gravimetric/volumetric capacity are indispensable advanced AZIBs. However, pristine encounter severe challenges in achieving adequate cycling stability, including dendrite growth, hydrogen evolution reaction, self‐corrosion, by‐product formation. Because all these reactions closely related electrolyte/Zn interface, subtle interface engineering is important. Many strategies targeted been developed. In this review, timely update on perspectives summarized, especially focusing controllable synthesis Zn, surface engineering, electrolyte formulation, separator design. Furthermore, corresponding internal principles clarified, which helpful help seek new strategies. Finally, future development practical AZIBs discussed, conducting situ testing, unification battery models, some boundary issues, etc. This review expected guide provi beacon light direction aqueous zinc ion batteries.

Language: Английский

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Aqueous Zinc‐Iodine Batteries: From Electrochemistry to Energy Storage Mechanism

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(41)

Published: Sept. 1, 2023

Abstract As one of the most appealing energy storage technologies, aqueous zinc‐iodine batteries still suffer severe problems such as low density, slow iodine conversion kinetics, and polyiodide shuttle. This review summarizes recent development Zn─I 2 with a focus on electrochemistry underlying working mechanism. Starting from fundamentals batteries, zinc anode, well scientific existing in are introduced. The concrete strategies dealing cathode, electrolyte, separator challenges confronting elaborated well. To deepen understanding important findings mechanism different summarized detail. Finally, some guidelines directions for also provided. is expected to battery promote their practical applications future.

Language: Английский

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A Bio‐Inspired Trehalose Additive for Reversible Zinc Anodes with Improved Stability and Kinetics

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(41)

Published: Aug. 14, 2023

The moderate reversibility of Zn anodes, as a long-standing challenge in aqueous zinc-ion batteries, promotes the exploration suitable electrolyte additives continuously. It is crucial to establish absolute predominance smooth deposition within multiple interfacial reactions for stable zinc including suppressing side parasitic and facilitating plating process. Trehalose catches our attention due reported mechanisms sustaining biological stabilization. In this work, inter-disciplinary application trehalose modification first time. pivotal roles suppressed hydrogen evolution accelerated have been investigated based on principles thermodynamics well reaction kinetics. electrodeposit changes from random accumulation flakes dense bulk with (002)-plane exposure unlocked crystal-face oriented addition. As result, highly reversible anode obtained, exhibiting high average CE 99.8 % Zn/Cu cell cycling over 1500 h under 9.0 depth discharge symmetric cell. designing mechanism analysis study could serve source inspiration exploring novel advanced anodes.

Language: Английский

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Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(42)

Published: Sept. 25, 2023

Abstract Aqueous zinc ion batteries are attracting broad interest in stationary energy storage where low cost, robust security, and satisfactory capacity matter most. However, metal anodes suffer from destructive dendrite issues during repeated charging/discharging process, decreasing the cycle life of batteries. Herein, smoother plating/striping behaviors achieved by group modification structural unit polymer separator. Experimental results theoretical simulations reveal that skeleton can release more easily when modified with carbonylation side groups contribute to much faster transfer capability. Typically, symmetric Zn cells a thin thickness separator 21 µm exhibit ultralong over 2800 h at 1 mA cm −2 within mAh 300 under high current density 5 areal 3 . Full using sodium vanadium oxide cathode also show stable reversible performance after 2000 cycles A g −1 This work is expected inspire promising strategies molecular design polymeric toward stabilizing beyond this anode itself.

Language: Английский

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Cation Defect‐Engineered Boost Fast Kinetics of Two‐Dimensional Topological Bi₂Se₃ Cathode for High‐Performance Aqueous Zn‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(51)

Published: Oct. 26, 2023

Abstract The challenge with aqueous zinc‐ion batteries (ZIBs) lies in finding suitable cathode materials that can provide high capacity and fast kinetics. Herein, two‐dimensional topological Bi 2 Se 3 acceptable Bi‐vacancies for ZIBs (Cu‐Bi 2−x ) is constructed through one‐step hydrothermal process accompanied by Cu heteroatom introduction. cation‐deficient Cu‐Bi nanosheets (≈4 nm) bring improved conductivity from large surface metal states contribution enhanced bulk conductivity. Besides, the increased adsorption energy reduced Zn 2+ migration barrier demonstrated density‐functional theory (DFT) calculations illustrate decreased Coulombic ion‐lattice repulsion of . Therefore, exhibits both ion electron transport capability, leading to more carrier reversible insertion proved situ synchrotron X‐ray diffraction (SXRD). These features endow sufficient specific (320 mA h g −1 at 0.1 A ), high‐rate performance (97 10 reliable cycling stability (70 after 4000 cycles). Furthermore, quasi‐solid‐state fiber‐shaped employing demonstrate respectable superior flexibility even under mass loading. This work implements a conceptually innovative strategy represented cation defect design insulator achieving high‐performance battery electrochemistry.

Language: Английский

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Separator designs for aqueous zinc-ion batteries

Science Bulletin, Journal Year: 2024, Volume and Issue: 69(5), P. 688 - 703

Published: Jan. 12, 2024

Language: Английский

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A Functional Janus Ag Nanowires/Bacterial Cellulose Separator for High‐Performance Dendrite‐Free Zinc Anode Under Harsh Conditions

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(47)

Published: Sept. 20, 2023

Aqueous zinc-ion batteries (AZIBs) offer promising prospects for large-scale energy storage due to their inherent abundance and safety features. However, the growth of zinc dendrites remains a primary obstacle practical industrialization AZIBs, especially under harsh conditions high current densities elevated temperatures. To address this issue, Janus separator with an exceptionally ultrathin thickness 29 µm is developed. This features bacterial cellulose (BC) layer on one side Ag nanowires/bacterial (AgNWs/BC) other side. High zincophilic property excellent electric/thermal conductivity AgNWs make them ideal serving as ion pump accelerate Zn2+ transport in electrolyte, resulting greatly improved conductivity, deposition homogeneous Zn nuclei, dendrite-free Zn. Consequently, Zn||Zn symmetrical cells exhibit stable cycle life over 1000 h 80 mA cm-2 are sustained 600 at 10 50 °C. Further, enables cycling stability aqueous capacitors (AZICs), scaled-up flexible soft-packaged batteries. study demonstrates potential functional separators promoting application batteries, particularly conditions.

Language: Английский

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Ion–dipole interaction motivated Zn²⁺ pump and anion repulsion interface enable ultrahigh-rate Zn metal anodes

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 17(2), P. 591 - 601

Published: Dec. 8, 2023

A self-expedited Zn 2+ pump is constructed to perform dynamic and rapid replenishment of eliminate the concentration gradients at electrode/electrolyte interface even a high rate.

Language: Английский

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Gradient‐Structured and Robust Solid Electrolyte Interphase In Situ Formed by Hydrated Eutectic Electrolytes for High‐Performance Zinc Metal Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(8)

Published: Jan. 26, 2024

Abstract The mechanically and electrochemically stable ionically conducting solid electrolyte interphase (SEI) is important for the stabilization of metal anodes. Since SEIs are originally absent in aqueous zinc batteries (AZMBs), it very challenging to suppress water‐induced side reactions dendrite growth Zn anodes (ZMAs). Herein, a gradient‐structured robust gradient SEI, consisting B,O‐inner F,O‐exterior layer, situ formed by hydrated eutectic homogeneous reversible deposition, demonstrated. Moreover, molar ratio acetamide salt modulated prohibit water activity hydrolysis BF 4 − as well achieve high ionic conductivity owing regulation solvation sheath 2+ . Consequently, allows Zn||Zn symmetric cells cycling lifespan over 4400 h at 0.5 mA cm −2 Zn||PANI full deliver capacity retention 73.2% 4000 cycles 1 A g −1 demonstrate operation low temperatures. This work provides rational design corresponding dendrite‐free even under harsh conditions.

Language: Английский

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Recent advances and strategies of metal phosphides for accelerating polysulfide redox and regulating Li plating

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 510, P. 215836 - 215836

Published: April 12, 2024

Language: Английский

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