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

Advanced Energy Materials, Год журнала: 2023, Номер 13(28)

Опубликована: Июнь 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.

Язык: Английский

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Stabling Zinc Metal Anode with Polydopamine Regulation through Dual Effects of Fast Desolvation and Ion Confinement

Advanced Energy Materials, Год журнала: 2022, Номер 13(5)

Опубликована: Дек. 13, 2022

Abstract Metal zinc is recognized as a promising anode candidate for aqueous zinc‐ion batteries (AZIBs), however, dendrites and byproducts formation severe deteriorate its reversibility practical lifespan. Herein, polydopamine (PDA) layer, which offers the dual effects of fast desolvation ion confinement, constructed on surface Zn efficient AZIBs. The abundant polar functional groups in PDA significantly enhance interfacial contact media, reduces number water molecules reaching through desolvation, thus lowering energy barrier 2+ migration. Furthermore, porous coating controls flux via ion‐confinement effect, thereby accelerating kinetics surface. Consequently, Zn@PDA exhibits improved deposition (nucleation potential only 32.6 mV vs 50.2 bare Zn) compared with at 2.0 mA cm −2 , dendrite‐free negligible byproduct formation. When paired MnO 2 cathode, Zn@PDA//MnO cell delivers high discharge capacity long cycle stability without significant performance deterioration over 1000 cycles 1.0 A g −1 . Additionally, demonstrates excellent shelving‐restoring performance.

Язык: Английский

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A Dual‐Functional Organic Electrolyte Additive with Regulating Suitable Overpotential for Building Highly Reversible Aqueous Zinc Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 34(5)

Опубликована: Апрель 25, 2023

Abstract Aqueous zinc ion batteries (AZIBs) with high safety, low cost, and eco‐friendliness advantages show great potential in large‐scale energy storage systems. However, their practical application is hindered by Columbic efficiency unstable anode resulting from the side reactions deterioration of dendrites. Herein, tripropylene glycol (TG) chosen as a dual‐functional organic electrolyte additive to improve reversibility AZIBs significantly. Importantly, ab initio molecular dynamics theoretical simulations experiments such situ electrochemical impedance spectroscopy, synchrotron radiation‐based Fourier transform infrared spectroscopy confirm that TG participates solvation sheath Zn 2+ , regulating overpotential inhibiting reactions; meanwhile, inhibits dendrites modifies direction deposition constructing an adsorbed layer on anode. Consequently, Zn‐MnO 2 full cell exhibited specific capacity 124.48 mAh g ‐1 after 1000 cycles at current density 4 A . This quantitative regulation for suitable anode, its easy scalability process can be immediate benefit dendrite‐free, high‐performance, low‐cost

Язык: Английский

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

Advanced Materials, Год журнала: 2023, Номер 35(18)

Опубликована: Фев. 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.

Язык: Английский

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Functionalized Separator Strategies toward Advanced Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(20)

Опубликована: Апрель 7, 2023

Abstract Aqueous zinc‐ion batteries (ZIBs) enjoy a good reputation for being safe, affordable to produce, and ecologically friendly due the use of water‐based electrolytes. The main factors restricting development ZIBs, however, are negative effects dendrite deposition on zinc anode dissolution common cathodes such as Mn V‐based cathodes. Various techniques have been used address these issues, including regulating electrolyte concentration or solvation structure, developing coating current collector lessen growth, improving structural stability cathode. Recently, functionalized separator strategies gained popularity effective ways improve ZIB performance. is also practical technique save costs increase volumetric energy density battery by substituting usual thick expensive glass fiber separator. separators in ZIBs subject ongoing research, this work presents most recent findings systematic manner, focusing both methods prepare modify them. Finally, brief explanation constraints future potential provided.

Язык: Английский

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How About Vanadium‐Based Compounds as Cathode Materials for Aqueous Zinc Ion Batteries?

Advanced Science, Год журнала: 2023, Номер 10(12)

Опубликована: Янв. 22, 2023

Aqueous zinc-ion batteries (AZIBs) stand out among many monovalent/multivalent metal-ion as promising new energy storage devices because of their good safety, low cost, and environmental friendliness. Nevertheless, there are still great challenges to exploring new-type cathode materials that suitable for Zn

Язык: Английский

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Insights on Artificial Interphases of Zn and Electrolyte: Protection Mechanisms, Constructing Techniques, Applicability, and Prospective

Advanced Functional Materials, Год журнала: 2023, Номер 33(14)

Опубликована: Янв. 25, 2023

Abstract Aqueous zinc‐ion batteries (ZIBs) with metallic Zn anodes have emerged as promising candidates for large‐scale energy storage systems due to their inherent safety and competitive capacity. However, challenges of anodes, including dendrite growth side reactions, impede the commercialization ZIBs. The regulation Zn/electrolyte interphase is a feasible method achieve high‐performance ZIBs prolonged lifespan high reversibility. Considering as‐made artificial result combination protection materials, mechanisms, construction techniques, this review comprehensively summarizes recent progress modulation provides systematic guideline constructing ideal layers. In addition revealing entanglement relationship between failure behaviors timely concluding emerging mechanisms stable interphase, also evaluates techniques in regard commercialization, engineering workflow, strength, shortcoming, applicable effect, aiming pave way practical application. Finally, presents noteworthy points layer. It expected that can enlighten researchers not only explore interphases application, but design other metal aqueous similar behaviors.

Язык: Английский

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Engineering hosts for Zn anodes in aqueous Zn-ion batteries

Energy & Environmental Science, Год журнала: 2023, Номер 17(2), С. 369 - 385

Опубликована: Ноя. 29, 2023

This review systematically summarizes the host-design strategies for Zn anodes regarding substrate and interface fabrication, aiming to provide a prospective guideline developing high-performance anodes.

Язык: Английский

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Zincophilic Electrode Interphase with Appended Proton Reservoir Ability Stabilizes Zn Metal Anodes

Angewandte Chemie International Edition, Год журнала: 2022, Номер 62(5)

Опубликована: Ноя. 30, 2022

Abstract The rampant dendrites and hydrogen evolution reaction (HER) resulting from the turbulent interfacial at anode/electrolyte are main culprits of short lifespan low Coulombic efficiency Zn metal batteries. In this work, a versatile protective coating with excellent zincophilic amphoteric features is constructed on surface (ZP@Zn) as dendrite‐free anodes. This kind possesses advantages reversible proton storage rapid desolvation kinetics, thereby mitigating HER facilitating homogeneous nucleation concomitantly. Furthermore, space charge polarization effect promotes redistribution to achieve uniform deposition. Accordingly, ZP@Zn symmetric cell manifests reversibility an ultrahigh cumulative plating capacity 4700 mAh cm −2 stable cycling 80 % depth discharge (DOD). ZP@Zn//V 6 O 13 pouch also reveals superior stability high 326.6 g −1 .

Язык: Английский

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Hetero Nucleus Growth Stabilizing Zinc Anode for High-Biosecurity Zinc-Ion Batteries

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Окт. 26, 2023

Biocompatible devices are widely employed in modernized lives and medical fields the forms of wearable implantable devices, raising higher requirements on battery biocompatibility, high safety, low cost, excellent electrochemical performance, which become evaluation criteria toward developing feasible biocompatible batteries. Herein, through conducting implantation tests leakage scene simulations New Zealand rabbits, zinc sulfate electrolyte is proved to exhibit biosecurity turns out be one ideal salts for zinc-ion batteries (ZIBs). Furthermore, order mitigate notorious dendrite growth hydrogen evolution mildly acidic as well improve their operating stability, Sn hetero nucleus introduced stabilize anode, not only facilitates planar deposition, but also contributes overpotential. Finally, a long lifetime 1500 h symmetrical cell, specific capacity 150 mAh g-1 under 0.5 A Zn-MnO2 212 5 Zn-NH4V4O10 obtained. This work may provide unique perspectives ZIBs cell components.

Язык: Английский

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