Electrostatic Self-assembled Polymer Film Empowers the Interfacial Structure and Chemistry of Zn Anode for Enhanced Stability

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104260 - 104260

Published: April 1, 2025

Language: Английский

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Design and Structure of Electrolytes for All‐Weather Aqueous Zinc Batteries

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

Published: Dec. 1, 2024

Abstract Rechargeable aqueous zinc batteries (AZBs) utilizing water‐borne electrolytes are intrinsically safe electrochemical devices that promising in next‐generation energy storage. Such application requires adaptivity to global climate, especially at grid‐scale, thus their stability of performance varying temperatures is critical. Many essential properties AZBs, i.e., ion transfer, redox kinetics, etc., largely governed by the because relatively limited stable phase temperature water. This limitation extremely vital cold regions since charging and discharging become more difficult sub‐zero range due water freezing. Despite development various electrolyte strategies recent years, comprehensive reviews focusing on this topic remain limited. research diverse reasons underneath failure AZBs extreme provides a thorough analysis possible resolutions from an perspective. It starts with challenges faced both high low concerning electrolytes. Different addressing these discussed, providing insights into under conditions. Finally, review concludes summary outlook design structure for all‐weather integrating innovative non‐aqueous battery systems.

Language: Английский

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In‐Situ Construction of Solid Electrolyte Interphases with Gradient Zincophilicity for Wide Temperature Zinc Ion Batteries

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

Published: Dec. 9, 2024

Abstract Dendrite growth and parasitic side reactions on zinc (Zn) metal anode are major challenges limiting the practical application of aqueous ion batteries (AZIBs), particularly under wide temperatures conditions. This study proposes a novel hydrated deep eutectic solvent based electrolyte by using ethylene glycol (EG) SnI 4 , enabling AZIBs to achieve excellent cycling life from −30 60 °C. Spectroscopic characterizations reveal H 2 O molecules effectively confined within network due dual effects Zn 2+ coordination EG hydrogen bonding, thereby weakening free water activity broadening electrochemical window. Furthermore, resulting dissociation‐reduction an organic‐inorganic hybridized solid interphase (SEI) layer is formed surface with zincophile gradient, this gradient SEI inhibits evolution regulates oriented deposition. The Zn//Zn symmetric cell utilizing achieves remarkable stability over 7800 h at room temperature, 6000 °C, 2500 work provides insights into new approach formation mechanism anode, which demonstrates significant potential for developing high

Language: Английский

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Chain Effect-controlled Solvation Chemistry and Interfacial Microstructure Enables Highly Reversible Zn Metal Anode

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104039 - 104039

Published: Jan. 1, 2025

Language: Английский

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Supramolecular Interface Buffer Layer for Stable Zinc Anode

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

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Coupling of Donor–Acceptor of Hydrogen Bonds Manipulated Electrolyte Structure Enables Hydrogen Evolution‐Free and Durable Zn Metal Batteries

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Abstract The undesirable hydrogen evolution reaction (HER) primarily contributes to the instability of Zn anode, which exacerbates corrosion and dendrite growth impedes application metal battery in large‐scale energy storage. Although engineering functional aqueous electrolyte prominently controls HER, it hardly eradicates occurrence HER from source. Herein, this research utilizes coupling donor–acceptor bonds (H‐bonds) manipulate structure design a novel methanol (MeOH)‐based anhydrous organic with propylene carbonate (PC) as co‐solvent, fundamentally eliminating accompanied by suppressed growth. PC molecules acceptor strengthen H‐bonds networks between MeOH donor weaken interaction cations anions, enhancing stability reducing anion‐involved by‐products formation. Meanwhile, preferential adsorbed on anode surface form favorable component‐dominated solid interface layer, inducing uniform deposition along (002) orientation. Consequently, exhibits excellent cycling high reversibility. assembled cells also harvest satisfactory low‐temperature tolerance. More importantly, corresponding Zn||PANI full cell pouch behave an impressive capacity retention 92.4% 91.1% after 3200 1400 cycles, respectively.

Language: Английский

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Zincophilic, Green, Non-Toxic Additives Modulate Lean-Water Inner Helmholtz Layer for Enhanced Stability of Zinc Anodes

Published: Jan. 1, 2025

Language: Английский

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Promoting uniform distribution of zinc ions and stabilizing zinc anode by highly entangled zwitterionic hydrogels

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137322 - 137322

Published: March 14, 2025

Language: Английский

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Specific adsorption effect induces differential deposition structures to achieve 2-year stable cycling of zinc metal anodes

Energy storage materials, Journal Year: 2025, Volume and Issue: 78, P. 104249 - 104249

Published: April 18, 2025

Language: Английский

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Polyzwitterionic Gel Electrolyte: Dual Optimization of Polyiodide Shuttle Suppression and Anode Stabilization in Aqueous Zn‐I₂ Batteries

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Aqueous Zn‐I 2 batteries (AZIBs) have garnered attention for their high energy density and safety. However, challenges such as polyiodide shuttling, side reactions, uncontrolled dendrite growth hindered practical application. Herein, a polyzwitterionic gel (PZG) electrolyte is designed to address these issues by enhancing both the Zn anode iodine cathode performance. The anionic groups in PZG regulate 2+ solvation structure, promoting uniform deposition mitigating formation. Simultaneously, cationic interact electrostatically with polyiodides (I 3 − , I 5 ), effectively inhibiting shuttling between electrodes. As result, synergistic effects enable achieve average coulombic efficiency (CE) of 99.5% plating/stripping process. Moreover, full demonstrate an impressive capacity retention rate 96.4% after 10000 cycles. This work provides valuable insights into advanced hydrogel design beyond achieving highly reversible AZIBs.

Language: Английский

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