Advances in Aqueous Zinc Ion Batteries based on Conversion Mechanism: Challenges, Strategies, and Prospects

Small, Год журнала: 2024, Номер 20(27)

Опубликована: Янв. 28, 2024

Abstract Recently, aqueous zinc‐ion batteries with conversion mechanisms have received wide attention in energy storage systems on account of excellent specific capacity, high power density, and density. Unfortunately, some characteristics cathode material, zinc anode, electrolyte still limit the development possessing mechanism. Consequently, this paper provides a detailed summary for numerous zinc‐based batteries: zinc‐sulfur (Zn‐S) batteries, zinc‐selenium (Zn‐Se) zinc‐tellurium (Zn‐Te) zinc‐iodine (Zn‐I 2 ) zinc‐bromine (Zn‐Br batteries. Meanwhile, reaction mechanism research progress investigation composite cathode, anode materials, selection electrolytes are systematically introduced. Finally, review comprehensively describes prospects outlook mechanism, aiming to promote rapid

Язык: Английский

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Janus Binder Chemistry for Synchronous Enhancement of Iodine Species Adsorption and Redox Kinetics toward Sustainable Aqueous Zn–I₂ Batteries

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(10), С. 6628 - 6637

Опубликована: Фев. 15, 2024

Currently, the desired research focus in energy storage technique innovation has been gradually shifted to next-generation aqueous batteries holding both high performance and sustainability. However, Zn–I2 have deemed great sustainable potential, owing merits of cost-effective eco-friendly nature. their commercial application is hindered by serious shuttle effect polyiodides during reversible operations. In this work, a Janus functional binder based on chitosan (CTS) molecules was designed prepared; polar terminational groups impart excellent mechanical robustness hybrid binders; meanwhile, it can also deliver isochronous enhancement physical adsorption redox kinetics toward I2 species. By feat highly effective remission effect, CTS cell exhibits superb electrochemical capacities with long-term robustness, specifically, 144.1 mAh g–1, at current density 0.2 mA g–1 after 1500 cycles. Simultaneously, undesired self-discharging issue could be well-addressed; Coulombic efficiency remain 98.8 % resting for 24 h. More importantly, endow good biodegradability reusable properties; iodine species were reloaded, recycled devices specific 73.3 over 1000 This provides potential synchronous solution realize comprehensive utilization further make possible batteries.

Язык: Английский

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Secondary Amines Functionalized Organocatalytic Iodine Redox for High‐Performance Aqueous Dual‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер 36(23)

Опубликована: Фев. 9, 2024

Abstract Aqueous dual‐ion batteries (ADIBs) based on the cooperative redox of cations and iodine anions at anode cathode respectively, are attracting increasing interest because high capacity safety. However, full‐cell performance is limited by sluggish kinetics between iodide polyiodide involving multiple electron transfer steps, undesirable shuttling effect polyiodides. Here, this work reports a versatile conjugated microporous polymer functionalized with secondary amine groups as an organocatalytic for ADIB, which can be positively charged electrostatically adsorb iodide, organocatalyze reactions through groups. Both theoretical calculations controlled experiments confirm that confine (poly)iodide species via hydrogen bonding, essential accelerating reducing effect. The ADIB achieves ultrahigh 730 mAh g −1 ultrasmall overpotential 47 mV 1 A , also exhibits excellent rate long cycling stability retention 74% after 5000 cycles current density 5 . This demonstrates promise developing organocatalysts electrochemical processes, remains virtually unexplored area in electrocatalyst design clean energy applications.

Язык: Английский

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Confining Iodine into Metal‐Organic Framework Derived Metal‐Nitrogen‐Carbon for Long‐Life Aqueous Zinc‐Iodine Batteries

Advanced Materials, Год журнала: 2024, Номер 36(38)

Опубликована: Июль 31, 2024

Abstract Aqueous zinc–iodine batteries (AZIBs) are highly appealing for energy requirements owing to their safety, cost‐effectiveness, and scalability. However, the inadequate redox kinetics severe shuttling effect of polyiodide ions impede commercial viability. Herein, several Zn‐MOF‐derived porous carbon materials designed, further preparation iron–doped (Fe–N–C, M9) with varied Fe doping contents is optimized based on a facile self‐assembly/carbonization approach. M9, atomic coordinated nitrogen atoms, employed as an efficient cathode host AZIBs. Functional modifications hosts involving species levels investigated. The adsorption tests, in situ Raman spectroscopy, UV–vis results demonstrate capability charge‐discharge mechanism iodine species. Furthermore, experimental findings theoretical analyses have proven that conversion enhanced through physicochemical confinement effect. This study offers basic principles strategic design single‐atom dispersed high‐performance Flexible soft–pack battery wearable microbattery applications also implications future long‐life aqueous designs.

Язык: Английский

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A Bifunctional Electrolyte Additive Features Preferential Coordination with Iodine toward Ultralong‐Life Zinc–Iodine Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(21)

Опубликована: Фев. 27, 2024

Abstract Aqueous zinc–iodine (Zn‐I 2 ) battery is one of the most promising candidates for large‐scale energy storage due to its cost‐effectiveness, environmental friendliness, and recyclability. Its practical application hindered by challenges including polyiodide “shuttle effect” in cathode anode corrosion. In this study, a zinc pyrrolidone carboxylate bifunctional additive introduced simultaneously tackle issues Zn anode. It revealed that anions decrease concentration preferential coordination between I based on Lewis acid‐base effect, suppressing shuttle effect therefore improving conversion kinetics iodine redox process. Meanwhile, adsorbed inhibit corrosion promote non‐dendritic plating, contributing impressive Coulombic efficiency long‐term cycling stability. As result, Zn‐I full with realizes high specific capacity 211 mAh g −1 (≈100% utilization rate), an ultralong life >30 000 cycles 87% retention. These findings highlight significant potential as transformative aqueous batteries, marking critical advancement field technologies.

Язык: Английский

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Protein Interfacial Gelation toward Shuttle‐Free and Dendrite‐Free Zn–Iodine Batteries

Advanced Materials, Год журнала: 2024, Номер 36(35)

Опубликована: Июль 6, 2024

Aqueous zinc-iodine (Zn-I

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A Polyanionic Hydrogel Electrolyte with Ion Selective Permeability for Building Ultra‐Stable Zn/I₂ Batteries with 100 °C Wide Temperature Range

Advanced Functional Materials, Год журнала: 2024, Номер 34(29)

Опубликована: Март 10, 2024

Abstract The practical applications of aqueous Zn/I 2 batteries (AZIBs) operating within a wide temperature range are severely hindered by the uncontrolled shutting polyiodide ions (I 3 − / I 5 ) and rampant side reactions. In this study, tolerant polyanionic hydrogel (borax‐bacteria cellulose p (AMPS‐AM)) with ion selective permeability is designed for inhibiting effect reactions under extreme temperatures from −50 to 50 °C. zincophilic R−SO significantly enhances transport Zn 2+ cations promotes uniform growth metal along (002) plane. Moreover, abundant hydrophilic groups in hydrogels effectively suppress both hydrogen evolution reaction formation by‐products reducing water reactivity. Furthermore, theoretical calculations, visualization experiment situ Raman spectroscopy confirm that group hinders shuttle process /I anions through electrostatic repulsion. Consequently, gel electrolyte facilitates ultra‐stable full cell at low current density C over 100 A pouch negative/positive capacity ratio 3.3 exhibits stable performance 350 cycles an impressive high‐areal 2.03 mA h cm −2 , thereby establishing solid foundation its applications.

Язык: Английский

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Activating and Stabilizing a Reversible four Electron Redox Reaction of I⁻/I⁺ for Aqueous Zn‐Iodine Battery

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(25)

Опубликована: Март 19, 2024

Abstract Low capacity and poor cycle stability greatly inhibit the development of zinc‐iodine batteries. Herein, a high‐performance Zn‐iodine battery has been reached by designing optimizing both electrode electrolyte. The Br − is introduced as activator to trigger I + , coupled with forming interhalogen stabilize achieve four‐electron reaction, which promotes capacity. And Ni−Fe−I LDH nanoflowers serve confinement host enable reactions /I occurring in layer due spacious stable interlayer spacing LDH, effectively suppresses iodine‐species shuttle ensuring high cycling stability. As result, electrochemical performance enhanced, especially specific (as 350 mAh g −1 at 1 A far higher than two‐electron transfer batteries) (94.6 % retention after 10000 cycles). This strategy provides new way realize long‐term

Язык: Английский

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Bifunctional self‐segregated electrolyte realizing high‐performance zinc‐iodine batteries

InfoMat, Год журнала: 2024, Номер 6(12)

Опубликована: Авг. 27, 2024

Abstract Static rechargeable zinc‐iodine (Zn‐I 2 ) batteries are superior in safety, cost‐effectiveness, and sustainability, giving them great potential for large‐scale energy storage applications. However, the shuttle effect of polyiodides on cathode unstable anode/electrolyte interface hinder development Zn‐I batteries. Herein, a self‐segregated biphasic electrolyte (SSBE) was proposed to synergistically address those issues. The strong interaction between organic phase demonstrated limit polyiodides. Meanwhile, hybridization polar solvent inorganic modulated bonding structure, as well effective weakening water activity, optimizing during zinc electroplating. As result, coin cells performed capacity retention nearly 100% after 4000 cycles at mA cm −2 . And discharge 0.6 Ah with no degradation 180 achieved pouch cell. A photovoltaic battery further displayed cumulative 5.85 Ah. successfully designed device exhibits application stationary storage. image

Язык: Английский

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Hydrogen Bond Network Regulation in Electrolyte Structure for Zn‐based Aqueous Batteries

Advanced Functional Materials, Год журнала: 2024, Номер 34(37)

Опубликована: Апрель 21, 2024

Abstract Electrolyte regulation in Zn‐based aqueous batteries (ZABs) has been extensively reported, and a broad range of strategies proposed. However, there is currently lack systematic summaries comprehensive understanding the impact hydrogen bond (H‐bond) networks on electrolyte performance. This work presents structure model, encompassing solvation structure, electrolyte/Zn anode interface, H‐bond network. Through emphasizing summarizing reconstruction, strengthening, breaking network within various specific are identified, such as high Gutmann donor number solvent, organic co‐solvent, molecular crowding additives, structure‐breaking ions, solid‐state design. A critical appraisal then provided key performance metrics influenced by these methods, including Coulomb efficiency, voltage hysteresis, freezing point, lifespan. expected to illustrate design improve ZABs. Last, data‐driven summary outlook provided, objectively evaluate overall performances

Язык: Английский

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