Biomass Chitin Nanofiber Separators Proactively Stabilizing Zinc Anodes for Dendrite‐Free Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 5, 2024

Abstract Aqueous zinc‐ion batteries (ZIBs) have generated extensive research attention for stationary energy storage, due to their advantaged superiority in terms of inherent safety, low cost, and eco‐friendliness. However, uncontrollable dendrite growth side reactions the Zn anode affect cycle life ZIBs. Conventional separators are almost ineffective inhibiting these issues. Herein, a chitin nanofiber membrane separator is developed tackle issues via simple, low‐cost, scalable strategy. The obtained exhibits abundant zincophilic functional groups, homogeneous nanopores, excellent mechanical properties, which facilitate desolvation hydrated 2+ ions, improve transference number, homogenize ion flux, simultaneously. Moreover, can also reduce deposition barrier, accelerate kinetics. Therefore, dendrites harmful effectively synchronously suppressed, enabling assembled ZIBs with an ultralong good rate capability. Impressively, Zn‐MnO 2 pouch cell stability safety under various external damages. above highlights mark significant step toward practical application

Язык: Английский

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Stereoisomeric Engineering Mediated Zinc Metal Electrodeposition: Critical Balance of Solvation and Adsorption Capability

Advanced Powder Materials, Год журнала: 2025, Номер unknown, С. 100276 - 100276

Опубликована: Фев. 1, 2025

Язык: Английский

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An Electrostripping Strategy for Constructing a 3D Honeycomb‐Like Zn Anode Toward Dendrite‐Free Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 9, 2024

Abstract The severe dendrite issue of the Zn anode greatly hinders practical application aqueous zinc‐ion batteries, which demands a prompt solution. This work proposes an electrostripping strategy using sodium citrate (SC) solution as electrolyte to fabricate 3D honeycomb‐like (3DH‐Zn) anode. Theoretical calculations and experimental results reveal that SC preferentially adsorbs on Zn(100) Zn(101) planes exhibits shielding effect, leading major dissolution atoms from Zn(002) plane, thus obtaining structure. Notably, convinced by morphology characterization finite element simulation results, 2+ tends deposit lateral sides hexagonal holes 3DH‐Zn anode, resulting in flat deposition dominated Zn(101)/Zn(100) planes, significantly inhibits formation. As result, symmetric cell achieves ultra‐long lifespan 2000 h at 5.0 mA cm −2 1.0 mAh . Besides, 3DH‐Zn||VO 2 full works for 1000 cycles A g −1 with residual capacity 123.1 opens up new horizon applying designing advanced

Язык: Английский

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Revealing the Triangular Entanglement of Hydrogen Bond Network via Kosmotropic Effect for Durable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Abstract Regulating the H‐bond network between H 2 O molecules has been regarded as an effective strategy to reconfigure chemical environment at electrode/electrolyte interface (EEI), but intrinsic relationship hydrogen‐bond (H‐bond) network, solvation structure, and EEI in electrolyte remains unclear. To this end, three additives with same carbon skeleton different hydroxyl functional groups are chosen unlock their triangular relationship. Experimental theoretical calculations demonstrate that 2‐methyl‐1,3‐propanediol (MP) bearing strong kosmotropic effect modest steric‐hindrance not only form a stable H‐bonds by breaking original of also reconstruct structure Zn 2+ , predominantly inhibiting O‐triggered side reactions. Meanwhile, synergistic direction on MP ensures adsorption EEI, promoting uniform diffusion deposition. Consequently, assembled Zn||Zn symmetric cell provides 3000 h cycle life (0.5 mA cm −2 0.5 mAh ) ZnSO 4 +MP electrolyte, Zn||Cu asymmetric maintains high CE 99.41% after 1000 cycles 1 . The full exhibits excellent rate capability satisfactory discharge‐specific capacity.

Язык: Английский

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Advancing aqueous zinc-ion battery performance with pullulan through preferential adsorption on zinc anode surfaces and enhanced zinc ion desolvation

Materials Today Energy, Год журнала: 2025, Номер 48, С. 101790 - 101790

Опубликована: Янв. 5, 2025

Язык: Английский

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Branch Chain Variations Modulate Pyridine Derivative Adsorption for Long‐Life Zinc‐Ion Battery

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs), candidates for large‐scale energy storage, face limitations due to the poor reversibility of zinc anodes. It reports on pyridine derivatives with high donor characteristics, including 2‐chloro‐1‐methylpyridinium iodide (CMPI) and pyridine‐2‐acetaldoxime methyl (PAMI), as effective additives. At lower concentrations, these additives markedly curtail dendrites formation evolution hydrogen anode, thereby prolonging AZIBs life. Through a combination theory experiments, impact side‐chain groups kinetic process depositioni is elucidated. In contrast PAM + , CMPI demonstrates enhanced adsorption self‐assembles at anode‐electrolyte interface, forming barrier free water protective ZnI layer via I − ion integration. This dual‐layer strategy boosts plating/stripping by 100‐fold achieves coulombic efficiency 99.7% in zinc–copper half‐ batteries. The findings advance understanding electrolyte additive structures deposition, providing molecular framework screening aqueous metal‐ion

Язык: Английский

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Interfacial Layer Design Strategy Inspired by the Fluid Mosaic Model for Enhancing Zinc Anode Stability

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Март 29, 2025

Язык: Английский

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Multifunctional Polyol Electrolyte Design toward Long Lifespan Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Aqueous zinc batteries have garnered significant attention due to their inherent safety and low cost. However, its large‐scale application is still hindered by critical challenges such as interfacial corrosion, hydrogen evolution reactions, the formation of by‐products. To address these issues, this study introduces polyol (2‐hydroxymethyl‐1,3‐propylene glycol)(2H13P) in ZnSO 4 electrolyte solvation structure regulator, which not only regulates Zn 2+ achieve rapid desolvation kinetics but also promotes situ a dense zincophilic organic layer, effectively isolating side reaction occurred on anode. Consequently, Zn‐based battery demonstrates exceptional reversibility, maintains remarkably high CE 99.7% after 700 cycles. Furthermore, Zn||Zn symmetric cell achieves an impressive cycle life 4700 h at current density 1 mA cm −2 stability for over 400 with depth discharge 42.47%. In addition, 2H13P can suppress polyiodide ion shuttling Zn‐I 2 battery, enabling remarkable capacity retention 96.0% 12 000 cycles 10 C 94.5% 48 25 C. Additionally, pouch decent lifespan 300 C, highlighting unlimited potential practical applications.

Язык: Английский

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A thiol-modified solid electrolyte interphase enhances the stability of zinc anodes under high depths of discharge

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

By introducing TMPEI, a stable solid electrolyte interface layer is formed on the zinc anode surface, effectively enhancing cycling stability and long-term performance of anode.

Язык: Английский

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Realizing dendrite-free Zn anodes via bidirectional ionization equilibrium tactics

Journal of Energy Storage, Год журнала: 2025, Номер 122, С. 116596 - 116596

Опубликована: Апрель 15, 2025

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