An Ultra-Stable, High-Energy and Wide-Temperature-Range Aqueous Alkaline Sodium-Ion Battery with the Microporous C4N/rGO Anode

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Фев. 24, 2025

Abstract Common anode materials in aqueous alkaline electrolytes, such as cadmium, metal hydrides and zinc, usually suffer from remarkable biotoxicity, high cost, serious side reactions. To overcome these problems, we develop a conjugated porous polymer (CPP) in-situ grown on reduced graphene oxide (rGO) Ketjen black (KB), noted C 4 N/rGO N/KB respectively, the alternative anodes. The results show that electrode delivers low redox potential (−0.905 V vs. Ag/AgCl), specific capacity (268.8 mAh g −1 at 0.2 A ), ultra-stable fast sodium ion storage behavior (216 20 ) 2 M NaOH electrolyte. assembled N/rGO//Ni(OH) full battery can cycle stably more than 38,000 cycles. Furthermore, by adding small amount of antifreeze additive dimethyl sulfoxide (DMSO) to adjust hydrogen bonding network, low-temperature performance electrolyte (0.1 DMSO/2 NaOH) is significantly improved while evolution inhibited. Consequently, cell exhibits an energy density 147.3 Wh Kg ultra-high cycling stability over wide temperature range −70 45 °C. This work provides high-capacity CPP-based for batteries will facilitate their practical applications under extreme conditions.

Язык: Английский

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In Situ Self‐Reconfiguration Induced Multifunctional Triple‐Gradient Artificial Interfacial Layer toward Long‐Life Zn‐Metal Anodes

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Июнь 12, 2024

Abstract Aqueous Zn‐ion batteries featuring with intrinsic safety and low cost are highly desirable for large‐scale energy storage, but the unstable Zn‐metal anode resulting from uncontrollable dendrite growth grievous hydrogen evolution reaction (HER) shortens their cycle life. Herein, a feasible in situ self‐reconfiguration strategy is developed to generate triple‐gradient poly(diallyldimethylammonium) bis(trifluoromethanesulfonyl)imide (PDDA‐TFSI)‐Zn 5 (OH) 8 Cl 2 ·H O‐Sn (PT‐ZHC‐Sn) artificial layer. The interface consists of spherical top layer PT cation confinement H O inhibition, dense intermediate ZHC nanosheet Zn 2+ conduction electron shielding, bottom Znophilic Sn metal. well‐designed interfacial synergistically facilitates rapid diffusion regulate uniform deposition accelerates desolvation process while suppressing HER. Consequently, PT‐ZHC‐Sn@Zn symmetric cell achieves an ultralong lifespan over 6500 h at 0.5 mA cm −2 mAh . Furthermore, full battery coupling MnO cathode exhibits 17.2% increase capacity retention compared bare after 1000 cycles. also applied prepare PT‐ZHC‐In, assembled Zn//Cu operates steadily 8400 maintaining Coulombic efficiency 99.6%. This work paves way designing multicomponent gradient stable anodes.

Язык: Английский

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Interfacial chemistry in multivalent aqueous batteries: fundamentals, challenges, and advances

Chemical Society Reviews, Год журнала: 2024, Номер 53(18), С. 8980 - 9028

Опубликована: Янв. 1, 2024

As one of the most promising electrochemical energy storage systems, aqueous batteries are attracting great interest due to their advantages high safety, sustainability, and low costs when compared with commercial lithium-ion batteries, showing promise for grid-scale storage. This invited tutorial review aims provide universal design principles address critical challenges at electrode-electrolyte interfaces faced by various multivalent battery systems. Specifically, deposition regulation, ion flux homogenization, solvation chemistry modulation proposed as key tune inter-component interactions in corresponding interfacial strategies underlying working mechanisms illustrated. In end, we present a analysis on remaining obstacles necessitated overcome use under different practical conditions future prospects towards further advancement sustainable systems long durability.

Язык: Английский

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Unveiling Intercalation Chemistry via Interference‐Free Characterization Toward Advanced Aqueous Zinc/Vanadium Pentoxide Batteries

Advanced Science, Год журнала: 2024, Номер 11(40)

Опубликована: Авг. 29, 2024

Abstract Aqueous Zn/V 2 O 5 batteries are featured for high safety, low cost, and environmental compatibility. However, complex electrode components in real impede the fundamental understanding of phase transition processes intercalation chemistry. Here, model based on V film electrodes which show similar electrochemical behaviors as ones built. Advanced surface science characterizations allow to identify trajectories Zn 2+ , H O, + during processes. Protons serve vanguard intercalated species, facilitating subsequent O. The increase capacity activation process is mainly due from more active ·nH structure caused by partial irreversible deintercalation rather than sites induced grain refinement materials. Eventually, accumulation species within oxide results formation inactive (Zn 3 (OH) 7 ·2H O) structure. established chemistry helps design high‐performance

Язык: Английский

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Designing Copolymeric SEI Layer Based on Click Reaction toward Ultralow N/P Ratio and Long Cycle Life Zinc Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 20, 2024

Abstract Balancing interfacial interactions is critical to the reversibility and cycle stability of Zn ion batteries, as severe chemical corrosion undesirable hydrogen evolution reaction (HER) are inevitable for anode in aqueous electrolytes during charge/discharge process. Herein, a multi‐functional copolymeric solid/electrolyte interface (SEI) layer, self‐assembling on based click between epoxy silane thioalcohol, employed eliminate these side reactions. The dense robust SEI layer can not only physically repel water from surface effectively inhibit HER but also facilitate desolvation 2+ accelerate kinetic Additionally, it regulate flux induce preferred plating with (002) crystallographic orientation, enabling dendrite‐free deposition. As result, stable long life ≈200 h at depth discharge (DoD) 60% achieved. Zn||V 2 O 5 full cell delivers high specific capacity 165.2 mAh g −1 after 600 cycles an ultralow N/P ratio (the negative electrode positive electrode) 2.5. construction this provides new pathway development practical batteries.

Язык: Английский

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Nitrogen and Oxygen Co‐Doped Graphene Quantum Dots as a Trace Amphipathic Additive for Dendrite‐Free Zn Anodes

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 12, 2024

Abstract The practical implementation of aqueous zinc‐ion batteries (AZIBs) has encountered obstacles stemming from the limited reversibility zinc anode, primarily due to dendrite proliferation and water‐induced reactions occurring. In this investigation, a novel bifunctional interphase is proposed by integrating nitrogen oxygen group graphene quantum dot (N‐O‐GQD) additives into electrolyte. Experimental results theoretical calculations demonstrate that amphipathic N‐O‐GQD additive enhances stability electrode forming protection layer on Zn surface. zincophilic hydrophobic function groups stick surface electrodes form shields water molecules promotes uniform deposition Zn. hydrophilic hydroxyl are exposed electrolyte improve compatibility at electrode/electrolyte interface. As result, enables robust cycling performance high depth discharge (DOD). Significantly, cells incorporating N‐O‐GQDs remarkable Coulombic efficiency 99.7% over 900 cycles sustain dendrite‐free for 564 h (DOD = 51%). Particularly noteworthy modified Zn||ZnVO full cell with behavior, enduring 4 000 10 A g −1 .

Язык: Английский

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Advancements in Chemical Vapor Deposited Carbon Films for Secondary Battery Applications

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Abstract Carbon films, synthesized via chemical vapor deposition (CVD), have gained significant attention in secondary battery applications, where stability and capacity are required to be improved for next‐generation electronic devices electric vehicles. Beyond the inherent properties of carbon such as high electrical conductivity, mechanical strength, stability, flexibility, CVD method provides a degree freedom designing films enabling conformal coating with structure engineering modification its properties. In this review, CVD‐grown highlighted them overcome critical issues, volume expansion, sluggish kinetics, unstable interfaces. To deeply understand graphene amorphous carbon, comprehensive overview process is also provided, focusing on growth mechanisms, control 3D morphology, doping techniques. addition, broad range applications introduced components, including their use cathodes, anodes, current collectors, well potential advanced systems, lithium‐sulfur all‐solid‐state batteries. This review proposes future directions optimizing achieve practical energy storage devices.

Язык: Английский

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Sustainable Release of Zincophilic Metal Ions from Separator Proactively Drives Interfacial Stabilization for Durable Zinc Anode

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Abstract One of the important challenges in advancing aqueous zinc‐ion batteries is separator, which crucial for promoting stable electrode‐electrolyte interface and energy density battery. Herein, this study introduces a metal ion‐activated air‐laid paper (ALP Act) as an alternative traditional glass fiber separators with big thickness weight. Notably, sustainable release ions facilitates situ engineering, thus creating surface layer high zinc affinity to promote uniform migration deposition ions. By continuously adjusting interface, behaviors dendrite growth side reactions are effectively suppressed. Consequently, ALP Act continuous metal‐ion function enables anode attain 21‐fold increase running life beyond 3700 h compared conventional separator at 1 mA cm −2 l mAh . The Zn||Cu battery also achieves remarkable Coulombic efficiency 99.18% 2000 (1 /1 ). assembled Zn||NVO exhibits lifespan 3000 cycles charge discharge 3 A g −1 This research offers new avenue achieve low‐cost, long‐lasting, energy‐dense batteries.

Язык: Английский

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Multi‐Scale Functionally Designed ZnWO₄ Artificial Interphase for Ultra‐Stable Aqueous Zn Metal Anodes Under High Current Rates

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

Abstract Aqueous zinc ion batteries have received unprecedented attention owing to their superior safety and sustainability, yet cycling stability especially at high current rates is greatly limited by the poor reversibility of Zn metal anodes, due delayed transport, severe water‐induced side reactions, uncontrollable dendrites growth electrolyte/electrode interface. Herein, a robust multi‐scale functionally designed amorphous ZnWO 4 (ZWO) artificial interphase that fully addresses aforementioned issues, proposed. The modified anodes deliver remarkable stability, surpassing 3000 h operation density 20 mA cm −2 in symmetrical cells. Even under harsh conditions 10 mAh , electrode demonstrates steady for over 600 with low overpotential. excellent rate performance are mainly attributed range collective functionalities ZWO interphase, including short‐range isotropic migration, ion‐screening capability, thermodynamically enhanced energy barrier hydrogen evolution reaction (HER) during plating. These findings highlight significance functional overcoming key barriers associated density, offering facile insightful approach achieving high‐performance anodes.

Язык: Английский

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Surface Engineering on Zinc Anode for Aqueous Zinc Metal Batteries

ChemSusChem, Год журнала: 2024, Номер 17(14)

Опубликована: Март 2, 2024

Abstract Rechargeable aqueous zinc metal batteries (AZMBs) are considered as a potential alternative to lithium‐ion due their low cost, high safety, and environmental friendliness. However, the Zn anodes in AZMBs face severe challenges, such dendrite growth, corrosion, hydrogen evolution, all of which closely related Zn/electrolyte interface. This article offers short review on surface passivation alleviate issues anodes. The composition structure layers significantly influence functions then performance recent progresses introduced, according chemical components Moreover, challenges prospects stabilizing discussed, providing valuable guidance for development AZMBs.

Язык: Английский

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