Molecularly engineered multifunctional imide derivatives for practical Zn metal full cells

Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7870 - 7881

Опубликована: Янв. 1, 2024

The molecularly engineered multifunctional additive of H-SU, which effectively modulates both solvated and interfacial structures, was chosen from a family imide derivatives for practical aqueous Zn metal full cells.

Язык: Английский

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Ordered interface regulation at Zn electrodes induced by trace gum additives for high-performance aqueous batteries

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A macromolecule additive strategy is presented as a dual deceleration interfacial network to regulate Zn deposition behavior and inhibit side reactions. It enables the stable cycling of electrodes in aqueous batteries.

Язык: Английский

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Membranes constructing with excellent performances for aqueous zinc-ion battery: A review

Coordination Chemistry Reviews, Год журнала: 2025, Номер 531, С. 216478 - 216478

Опубликована: Фев. 8, 2025

Язык: Английский

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Electrolyte Additive Molecule Disassembly to Reveal the Roles of Individual Groups in Zn Electrode Stabilities in Aqueous Batteries

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Сен. 24, 2024

Zn metal anodes experience dendritic growth and hydrogen evolution reactions (HER) in aqueous batteries. Herein, we propose an interface regulation strategy with a trace (1.4 × 10

Язык: Английский

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Electrolyte Design via Cation–Anion Association Regulation for High-Rate and Dendrite-Free Zinc Metal Batteries at Low Temperature

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(46), С. 31612 - 31623

Опубликована: Ноя. 12, 2024

Low-temperature zinc metal batteries (ZMBs) are highly challenged by Zn dendrite growth, especially at high current density. Here, starting from the intermolecular insights, we report a cation-anion association modulation strategy matching different dielectric constant solvents and unveil relationship between strength plating/stripping performance low temperatures. The combination of comprehensive characterizations theoretical calculations indicates that moderate ion electrolytes with ionic conductivity (12.09 mS cm

Язык: Английский

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Adaptive No‐Tip Distribution of Rich Charge‐Density‐Clusters Guiding Confinement Deposition with Repair Function toward Highly Reversible Zinc Anode

Advanced Functional Materials, Год журнала: 2024, Номер 34(49)

Опубликована: Авг. 21, 2024

Abstract The plating/stripping behavior of Zn ions on the anode, driven by an electric field, is a key process in determining performance aqueous zinc ion batteries (AZIBs). Process‐induced unevenness commercial foils results poor reversibility anodes. Herein, self‐healing dynamic anode/electrolyte interface constructed incorporating hydroxyl‐rich alcohols with high charge density and zincophilicity into original electrolyte. These selectively anchor electron‐poor sites charging state, inducing domain‐limited deposition 2+ to achieve dense, uniform, flat state. As result, durable anode excellent electrochemical can be realized practical cycling (average Coulombic efficiency 99.5%). Even under deep conditions (5 mA cm −2 5mAh ), modified electrolyte exhibits remarkable repair effect corroded anodes that have been cycled base electrolyte, extending lifespan over 1,020 h. This represents 15.6‐fold enhancement compared recycling strategy for additive directly influences design ultra‐long‐life AZIBs provides concrete concepts recovery

Язык: Английский

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Hydrogen bond-induced elastic polyzwitterion electrolytes constructed by mussel-inspired autopolymerization for zinc-ion battery

Science China Chemistry, Год журнала: 2024, Номер 67(10), С. 3438 - 3449

Опубликована: Авг. 16, 2024

Язык: Английский

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Uncovering Required Molecular Properties for Interface Regulators and Modification Mechanisms for Zn Anode in Aqueous Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 13, 2024

Abstract Inhomogeneous deposition and side reactions at Zn anode in aqueous batteries seriously limit the electrochemical performance. Electrolyte additives low content are desired, uncovery of fundamental required molecular properties is necessary. Herein, systematic studies carried out to reveal factors showing correlations with interface regulation effect stability electrode, which presents a screening rule for electrolyte additives. Accordingly, phosphoramide (PA) molecule stands as suitable regulator only 0.1% addition. Further analysis demonstrates transformation 2+ solvation structures from water‐dominated bulk PA anion participation toward surface. The latter helps homogenize flux, modulate desolvation paths, regulate kinetics, suppress reactions, ensures uniform dense plating Zn. Even high depth discharge/capacity 52.2%/50 mAh cm −2 92.4%/88.5 , symmetric cells still reach 392 h 140 lifespans, respectively, superior PA‐free (fails before 2 cycles/cannot cycle). additive also enables stable cycling full cells.

Язык: Английский

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Supramolecular Interface Buffer Layer for Stable Zinc Anode

Small Methods, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Abstract The aqueous zinc ion batteries (AZIBs) are chronically plagued by the inevitable side‐reaction and uneven Zn planets stack. Through regulating water activity 2+ crystal dynamics could effectively relieve those anode/electrolyte interface problems. (2‐hydroxypropyl)‐β‐cyclodextrin (HBCD), characterized excluded‐volume mitigating zinc‐flux aggregation effect, is chosen as electrolyte additive to tail interface. In this work, supermolecule buffer layer conducted screen active modulate crystallography. Capitalized on intense electron density of exterior cavity, HBCD molecules proven chemically adsorb onto anode, which sterically repulse waters disrupt H‐bonds among waters. Concurrently, (002)‐preferred texture achieved through inducing ions transport nucleation. assembled symmetric Zn//Zn show ameliorated lifespan at various current (350 h for 10 mA cm −2 /10 mAh 100 20 /20 ) steady operation 73.26% high Depth Discharge (DOD). Zn//NVO deliver 380.4 g −1 discharge capacity 1 A . To prove feasibility, full battery with a low N/P ratio (2.16) assembled, it shows ≈260 runs stably during 500 cycles.

Язык: Английский

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Minimizing Zn Loss Through Dual Regulation for Reversible Zinc Anode Beyond 90% Utilization Ratio

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Abstract Large‐scale energy storage devices experience explosive development in response to the increasing crisis. Zinc ion batteries featuring low cost, high safe, and environment friendly are considered promising candidates for next‐generation devices. However, their practical application suffers from limited anode lifespan under a zinc utilization ratio, which can be attributed aggravated Zn loss caused by conversion reactions “dead” Zn. Herein, n‐propyl alcohol is reported stabilize depth of discharge through dual regulation water activity inhibition zinc‐ion plating regulation. The modified electrolyte exhibits 76.43% cut corrosion current benefited benefits SEI surface. content also reduced 26 times as result dendrite‐free plating. Thus, highly reversible plating/stripping with 99.62% CE achieved ≈3600 cycles. Moreover, Zn/Zn cells greatly increased even (310 h, 90%DOD 120 95.18% DOD). In Zn/NH 4 V O 10 full cells, improved reversibility enables remarkable capacity retention 92.16% after 400 cycles N/P ratio 2.5.

Язык: Английский

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