Cell-nucleus structured electrolyte for low-temperature aqueous zinc batteries

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 83, P. 324 - 332

Published: April 27, 2023

Language: Английский

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Comprehensive Understandings of Hydrogen Bond Chemistry in Aqueous Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(3)

Published: Nov. 1, 2023

Aqueous batteries are emerging as highly promising contenders for large-scale grid energy storage because of uncomplicated assembly, exceptional safety, and cost-effectiveness. The unique aqueous electrolyte with a rich hydrogen bond (HB) environment inevitably has significant impact on the electrode materials electrochemical processes. While numerous reviews have focused design assembly batteries, utilization HB chemistry is overlooked. Herein, instead merely compiling recent advancements, this review presents comprehensive summary analysis profound implication exerted by all components batteries. Intricate links between novel various ingeniously constructed within critical aspects, such self-discharge, structural stability materials, pulverization, solvation structures, charge carrier diffusion, corrosion reactions, pH sensitivity, water splitting, polysulfides shuttle, H

Language: Английский

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Attenuating Water Activity Through Impeded Proton Transfer Resulting from Hydrogen Bond Enhancement Effect for Fast and Ultra‐Stable Zn Metal Anode

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(44)

Published: Oct. 9, 2023

Abstract The high activity of water molecules induces notorious side reactions that seriously impair the stability Zn metal anode. Inspired by mechanism proton transfer in an aqueous solution, ectoine (ET) with a kosmotropic effect is first introduced into typical electrolyte zinc‐ion batteries (ZIBs). hydrogen bond enhancement brought ET additive increases energy barrier for reconfiguration bonds, thereby impeding hopping transport protons based on Grotthuss mechanism. inhibited evolution reaction (HER) impeded strongly proved situ electrochemical gas chromatography (EC‐GC). distinctive results remarkably improved anode while maintaining fast kinetics. Consequently, Zn//Zn symmetric cell delivers ultra‐long cycle life 5700 h 1 mA cm −2 /1 mAh and 2000 at 5 /5 lower voltage hysteresis, extending cycling >27 24 times without sacrificing

Language: Английский

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Polymer Molecules Adsorption‐Induced Zincophilic‐Hydrophobic Protective Layer Enables Highly Stable Zn Metal Anodes

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)

Published: Jan. 5, 2024

Zn metal, as one of the most promising anode materials for aqueous batteries, suffers from uncontrollable dendrite growth and water-induced parasitic reactions, which drastically compromise its cycle life Coulombic efficiency (CE). Herein, a nonionic amphipathic additive Tween-20 (TW20) is proposed that bears both zincophilic hydrophobic units. The segment TW20 preferentially adsorbs on anode, while exposed electrolyte side, forming an electrolyte-facing layer shields active water molecules. Moreover, theoretical calculation experimental results reveal can induce preferential (002) plane by adsorbing other facets, enabling dendrite-free anodes. Benefitting these advantages, stability reversibility anodes are substantially improved, reflected stable cycling over 2500 h at 1.0 mA cm

Language: Английский

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Electrolyte Engineering via Competitive Solvation Structures for Developing Longevous Zinc Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(48)

Published: Nov. 7, 2023

Abstract Aqueous zinc ion batteries (ZIBs) are troubled by the severe Zn dendrite growth and side reactions, manifesting as low coulombic efficiency poor cyclic stability. Electrolyte engineering is regarded an efficient method to improve metal reversibility. Herein, a distinctive electrolyte regulation strategy demonstrated for long‐lasting ZIBs through construction of competitive solvation structures. In composite aqueous system, insoluble LiNO 3 in dimethyl carbonate (DMC) introduced outwit active water dissociation from 2+ coordination environment, organic/anion‐enriched structure enables formation stable interface effectively restrain adverse reactions. Distinctly, anode exhibits inhibited with high reversibility plating/stripping processes over 1600 h exceptional cumulative capacity 16 Ah cm −2 , ultra‐long lifespan high‐temperature (50 °C), discharge depth (65%). Furthermore, || V 2 O 5 full battery can operate stably 1000 cycles at 1 A g −1 . This work points direction solve major challenges collaborative regulated environment interfacial chemistry.

Language: Английский

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Recent Advances in Structural Optimization and Surface Modification on Current Collectors for High-Performance Zinc Anode: Principles, Strategies, and Challenges

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: Aug. 31, 2023

The last several years have witnessed the prosperous development of zinc-ion batteries (ZIBs), which are considered as a promising competitor energy storage systems thanks to their low cost and high safety. However, reversibility availability this system blighted by problems such uncontrollable dendritic growth, hydrogen evolution, corrosion passivation on anode side. A functionally structurally well-designed current collectors (CCs) is believed viable solution for those problems, with lack summarization according its working mechanisms. Herein, review focuses challenges zinc mechanisms modified CCs, can be divided into zincophilic modification, structural design, steering preferred crystal facet orientation. possible prospects directions research design proposed at end hopefully promote practical application ZIBs.

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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Helmholtz Plane Reconfiguration Enables Robust Zinc Metal Anode in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(30)

Published: April 10, 2024

Abstract Aqueous zinc‐ion batteries are promising for next‐generation energy storage systems. However, the zinc dendrite growth, corrosion, and hydrogen evolution reaction at electrochemical interface severely impede their further development. Herein, a Zn 2+ ‐rich H 2 O‐poor Helmholtz plane is constructed to regulate between anode electrolyte. Electrochemical in situ spectroscopy characterizations reveal that designed electric double layer with abundant coordination sites less O content can facilitate rapid electron transfer, homogenize deposition, alleviate side reactions induced by active O. Benefiting from high reversibility stability of anode, Zn||Zn symmetric cell be cycled over 1000 h 1 mA cm −2 Zn||NH 4 V 10 full maintain capacity 85.23% cycles 3 A g −1 . This work aims reconfiguration provides realizable strategy construction other similar

Language: Английский

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Highly Reversible Zn Metal Anode Securing by Functional Electrolyte Modulation

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract The stability of the Zn metal anode is significantly affected by various parasitic reactions during plating/stripping. Here, sodium 4‐aminobenzenesulfonate (SABS) a functional electrolyte additive to modulate electrode/electrolyte interface protect metal. An electrical double layer (EDL) reconstruction providing hydrogen bond sites through nitrogen and oxygen elements with lone pair electrons in SABS molecules. These strong bonds not only limit corrosion free H 2 O molecules on surface but also promote desolvation process. Besides, can be further situ decomposed into solid (SEI) regulate plating/stripping behavior 2+ . As result, based synergism organic–inorganic hybrid SEI EDL reconstruction, Zn//Zn symmetric cells exceptionally survive lasting for 6500 hours at 1 mA cm −2 mAh , over 900 cycles even 40 10 Zn‐I full cell maintains excellent cycle 92.4% after 20000 cycles. Remarkably, pouch capacity retention 99.1% (63 mAh) 820 5

Language: Английский

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Ultrathin Zincophilic Interphase Regulated Electric Double Layer Enabling Highly Stable Aqueous Zinc-Ion Batteries

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 25, 2024

Abstract The practical application of aqueous zinc-ion batteries for large-grid scale systems is still hindered by uncontrolled zinc dendrite and side reactions. Regulating the electrical double layer via electrode/electrolyte interface an effective strategy to improve stability Zn anodes. Herein, we report ultrathin zincophilic ZnS as a model regulator. At given cycling current, cell with Zn@ZnS electrode displays lower potential drop over Helmholtz (stern layer) suppressed diffuse layer, indicating regulated charge distribution decreased electric repulsion force. Boosted adsorption sites are also expected proved enhanced double-layer capacitance. Consequently, symmetric protection can stably cycle around 3,000 h at 1 mA cm −2 overpotential 25 mV. When coupled I 2 /AC cathode, demonstrates high rate performance 160 mAh g −1 0.1 A long 10,000 cycles 10 . Zn||MnO sustains both capacity 130 after 1,200 0.5

Language: Английский

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