Backside Coating for Stable Zn Anode with High Utilization Rate

Advanced Materials, Год журнала: 2024, Номер 36(26)

Опубликована: Фев. 13, 2024

Abstract Stable Zn anodes with high utilization rate are urgently required to promote the specific and volumetric energy densities of Zn‐ion batteries for practical applications. Herein, contrary widely utilized surface coating on anodes, this work shows that a zinc foil backside coated layer delivers much enhanced cycling stability even under depth discharge. The significantly reduces stress concentration, accelerates heat diffusion, facilitates electron transfer, thus effectively preventing dendrite growth structural damage at utilization. As result, developed anode can be stably cycled 334 h 85.5% utilization, which outperforms bare previously reported results surface‐coated foils. An NVO‐based full cell also stable performance (69.4%), low negative‐positive electrodes ratio (1.44), specific/volumetric (155.8 Wh kg −1 /178 L ), progress toward zinc‐ion batteries.

Язык: Английский

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Challenges and protective strategies on zinc anode toward practical aqueous zinc‐ion batteries

Carbon Neutralization, Год журнала: 2024, Номер 3(1), С. 108 - 141

Опубликована: Янв. 1, 2024

Abstract Over the past decades, there has been a growing interest in rechargeable aqueous Zn‐ion batteries (AZIBs) as viable substitute for lithium‐ion batteries. This is primarily due to their low cost, lower redox potential, and high safety. Nevertheless, progress of Zn metal anodes impeded by various challenges, including growth dendrites, corrosion, hydrogen evolution reaction during repeated cycles that result Coulombic efficiency short lifetime. Therefore, we represent recent advances anode protection constructing high‐performance AZIBs. Besides, show in‐depth analyses supposed hypotheses on working mechanism these issues associated with mildly acidic electrolytes. Meanwhile, design principles feasible strategies are proposed suppress dendrites' formation batteries, electrode design, electrolyte modification, interface regulation, which suitable restraining corrosion reaction. Finally, current challenges future trends raised pave way commercialization These potential applicable other metal‐ion such Li K

Язык: Английский

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Boosting Ion Diffusion and Charge Transfer by Zincophilic Accordion Arrays to Achieve Ultrafast Aqueous Zinc Metal Batteries

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

Опубликована: Янв. 28, 2024

Abstract A key challenge to apply aqueous zinc metal batteries (AZMBs) as next‐generation energy storage device is improve the rechargeability at high current densities, which needed circumvent slowly ion diffusion in anode and sluggish charge transfer of Zn 2+ . Herein, a zincophilic accordion array derived from MOF developed host for simultaneously boosted transfer. The designed prepared by etching disproportionation reactions, abundant Sn sites with nano‐size uniform disperse on arrays nanosheets (Sn‐AA). Then composite (Sn‐AA@Zn) obtained compacting Sn‐AA power (Zn‐P). Sn‐AA@Zn has an ultra‐low activation (37.1 kJ mol −1 ) nucleation overpotential (10 mV), achieving fast Zinc deposition. In addition, cycle life symmetric cell exceeds 13 000 cycles 50 mA cm −2 , 32 times than that Zn‐P anode. And full MnO 2 cathode maintains capacity 122 mAh g after 5000 5 Ag Hopefully, 3D based significantly improved AZMB density.

Язык: Английский

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Zn Powder-Based Anodes for Aqueous Zn Metal Batteries: Strategies, Structures, and Perspectives

ACS Energy Letters, Год журнала: 2024, Номер 9(7), С. 3292 - 3307

Опубликована: Июнь 11, 2024

Aqueous zinc metal batteries (ZMBs) have attracted much attention in the field of grid-scale energy storage due to their high safety, low cost, and abundant resources. Zn powders exhibit unique advantages specific surface area, mature scaled-up manufacturing ability, structural tunability, which can meet large-scale devices, even special-shaped devices. However, powder-based anodes are at an early stage far from practical industrial application. With pursuit comprehensive electrochemical performances anodes, this review focus on advances, issues, optimized strategies, discussed systematically previous reports anodes. Meanwhile, we also added many supplementary discussions some important strategies relevant content but not yet reported. Finally, future prospects toward performance practicability proposed, will provide scientific guidance for application ZMBs.

Язык: Английский

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Improvements and Challenges of Hydrogel Polymer Electrolytes for Advanced Zinc Anodes in Aqueous Zinc-Ion Batteries

ACS Nano, Год журнала: 2024, Номер 18(33), С. 21779 - 21803

Опубликована: Авг. 12, 2024

Aqueous zinc-ion batteries (AZIBs) are widely regarded as desirable energy storage devices due to their inherent safety and low cost. Hydrogel polymer electrolytes (HPEs) cross-linked polymers filled with water zinc salts. They not only used in flexible but also represent an ideal electrolyte candidate for addressing the issues associated Zn anode, including dendrite formation side reactions. In HPEs, abundance of hydrophilic groups can form strong hydrogen bonds molecules, reducing activity inhibiting decomposition. At same time, special

Язык: Английский

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Superhydrophobic SiO2 coating layer enabling stable and reversible Zn anode for aqueous Zn-ion batteries

Applied Surface Science, Год журнала: 2024, Номер 654, С. 159406 - 159406

Опубликована: Янв. 19, 2024

Язык: Английский

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Critical Criteria Depicting the Rational Design of Zn Anode Current Collector

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

Опубликована: Март 6, 2024

Abstract By virtue of the intrinsic safety and cost‐effectiveness, aqueous Zn‐ion batteries (AZIBs) have gained increasing attention in realm energy storage. In spite promise Zn anode, challenges like dendrite growth side reactions persist as hurdles to be overcome. Addressing this, rational design anode current collectors (ZACCs) is an effective solution. Recent years witnessed significant strides construction ZACCs, yet precise pathways for ZACC development remain unclear, lacking a set specific criteria guide progress. this comprehensive review, acknowledging concerns surrounding anodes, six criteria—electrical conductivity, zincophilicity, orientational deposition inducibility, chemical stability, mechanical durability, scalability—are innovatively put forward pivotal benchmarks ZACCs. Each criterion accompanied by tailored optimization strategies corresponding challenges. Furthermore, future trend ZACCs envisaged, along with potential application scenarios AZIBs. This review will expedite advancement contribute flourishing landscape

Язык: Английский

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The Burgeoning Zinc Powder Anode for Aqueous Zinc Metal Batteries: from Electrode Preparation to Performance Enhancement

Advanced Energy Materials, Год журнала: 2024, Номер 14(32)

Опубликована: Июнь 5, 2024

Abstract Aqueous zinc metal batteries (AZMBs) have emerged as a focal point of interest in academic research and industrial strategic planning. Zinc powder (ZP) is poised to assume prominent position both future practical applications due its high Zn utilization rate processability. However, critical challenges need be addressed before realizing substantial progress. Notably, severe voltage polarization gas production ZP electrodes stand out the primary causes battery failure, differing with foil where short circuits caused by dendrites contribute failure. While numerous comprehensive reviews offered effective strategies for foil, systematic summary still lacking. For ZP, electrode preparation dictates performance. This review summarizes criteria optimal electrodes, covering components, methods, technique parameters. It emphatically introduces underlying water‐related side reactions briefly analyzes stripping/plating behaviors electrodes. The status quo ZP‐based then discussed categories current collector, conductive scaffold, binder, electrolytes. Finally, potential avenues are proposed from three aspects enhance focus on facilitate application AZMBs.

Язык: Английский

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Copper oxide-modified highly reversible Zn powder anode for aqueous Zn metal batteries

Rare Metals, Год журнала: 2024, Номер 43(10), С. 5005 - 5016

Опубликована: Июль 16, 2024

Язык: Английский

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Porous zinc metal anodes for aqueous zinc-ion batteries: Advances and prospectives

Energy Materials and Devices, Год журнала: 2024, Номер 2(3), С. 9370040 - 9370040

Опубликована: Май 27, 2024

The intensifying challenges posed by climate change and the depletion of fossil fuels have spurred concerted global efforts to develop alternative energy storage solutions. Aqueous zinc-ion batteries (AZIBs) emerged as promising candidates for large-scale electrochemical systems, owing their intrinsic safety, cost-effectiveness environmental sustainability. However, persistent issue Zn dendrite growth poses a significant challenge performance improvements commercial viability AZIBs. use three-dimensional porous anodes instead planar plates has been demonstrated an effective strategy regulate deposition/stripping behavior Zn²⁺ ions, thereby inhibiting growth. Here, we summarize merits provide comprehensive overview recent advancements in engineering metal anodes, with particular emphasis on structural orderliness critical role structure modulation enhancing battery performance. Furthermore, present strategic insights into design aiming facilitate practical implementation AZIBs grid-scale applications.

Язык: Английский

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