Organic Cations Texture Zinc Metal Anodes for Deep Cycling Aqueous Zinc Batteries

Advanced Materials, Год журнала: 2024, Номер 36(35)

Опубликована: Июль 5, 2024

Manipulating the crystallographic orientation of zinc (Zn) metal to expose more (002) planes is promising stabilize Zn anodes in aqueous electrolytes. However, there remain challenges involving non-epitaxial electrodeposition highly textured and maintenance texture under deep cycling conditions. Herein, a novel organic imidazolium cations-assisted strategy electrodeposited metals developed. Taking 1-butyl-3-methylimidazolium cation (Bmim

Язык: Английский

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Reconfiguring the Electrolyte Network Structure with Bio‐Inspired Cryoprotective Additive for Low‐Temperature Aqueous Zinc Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(31)

Опубликована: Май 19, 2024

Abstract Despite promising performance at ambient temperature, the development of aqueous zinc batteries is jeopardized by freeze electrolytes and deteriorative electrode‐electrolyte interphase low temperatures. Herein, inspired cryoprotective mechanism extracellular polysaccharides in biological organisms, a quaternized galactomannan polysaccharide (q‐GPA) proposed as additive for improving low‐temperature batteries. Mechanistic studies revealed that multi‐hydroxyl backbone can substantially attenuate activity water molecules through reconfiguration hydrogen bond network, which inhibits ice crystal formation subzero temperatures thus depress freezing point electrolyte. Meanwhile, quaternary ammonium groups tethered on q‐GPA skeleton are intended to neutralize interfacial electric field electrostatic repulsion, thereby accelerating Zn 2+ deposition kinetics prohibiting dendrite growth. Impressively, q‐GPA–modified electrolyte enables an extended lifespan over 1700 h Zn||Zn symmetric battery high current density 3 mA cm −2 ultralong cycle life 5000 cycles with capacity retention 99.2% Zn||Na 2 V 6 O 16 ·1.5H (NVO) full −30 °C. This work provides unprecedented possibilities optimizing formulation

Язык: Английский

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Reconstruction of Electric Double Layer on the Anode Interface by Localized Electronic Structure Engineering for Aqueous Zn Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(29)

Опубликована: Май 7, 2024

Abstract The electric double layer (EDL) at the electrode/electrolyte interface plays a crucial role to electrochemical reactions of zinc ion batteries. For Zn anode, EDL consists H 2 O dipoles, which can cause corrosion and passivation. Herein, localized electronic‐rich (LER) structure performing as soild electrolyte interphase (SEI) changes electron distribution, leading rapid capture 2+ , thus promoting desolvation cH shell. Moreover, LER generates an electrostatic repulsion effect SO 4 2− . Consequently, unique O‐poor is reconstructed with distribution ‐H O‐SO inhibits side improves deposition kinetics In situ Raman intuitively confirms that zinc‐ion‐flux uniform during whole electroplating process. regulator for structure, leads smooth fast deposition. performance enhancement demonstrated by LER@Zn//LER@Zn cells, exhibit exceptional lifespan 4800 h. Furthermore, LER@Zn///MnO cell shows improved cycling stability over 1500 cycles, high capacity 124 mAh g −1 5 C.

Язык: Английский

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Interfacial dual-modulation through deoxygenation effect and tuning hydrogen-bonding environment toward highly reversible Zn metal anodes

Energy storage materials, Год журнала: 2025, Номер 75, С. 104012 - 104012

Опубликована: Янв. 9, 2025

Язык: Английский

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Interfacial double-coordination effect reconstructing anode/electrolyte interface for long-term and highly reversible Zn metal anodes

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 678, С. 772 - 782

Опубликована: Сен. 7, 2024

Язык: Английский

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Steric hindrance and orientation polarization by a zwitterionic additive to stabilize zinc metal anodes

Carbon Neutralization, Год журнала: 2024, Номер unknown

Опубликована: Сен. 18, 2024

Abstract Zinc metal stands out as a promising anode material due to its exceptional theoretical capacity, impressive energy density, and low redox potential. However, challenges such zinc dendrite growth, corrosion, side reactions in aqueous electrolytes significantly impede the practical application of anodes. Herein, 3‐(1‐pyridinio)‐1‐propanesulfonate (PPS) is introduced zwitterionic additive achieve long‐term highly reversible Zn plating/stripping. Due orientation polarization with force electric field, PPS π–π conjugated pyridinio cations strong coordination ability sulfonate anion tends generate dynamic adsorption layer build unique water–poor interface. steric hindrance effect can attract solvated 2+ , thereby promoting desolvation process. Moreover, by providing large number nucleation sites inducing ion flow, preferred (002) crystal plane be achieved. Therefore, interfacial electrochemical reduction kinetics regulated uniform deposition ensured. Owing these advantages, Zn//Zn symmetrical cell exhibits remarkable cycling stability exceeding 2340 h (1 mA cm −2 1 ). The Zn//V 2 O 5 full also delivers stable for up 6000 cycles.

Язык: Английский

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Tyrosine additives with rich-polar functional groups provide multi-protections for ultra-stable zinc metal anodes

Energy storage materials, Год журнала: 2025, Номер 75, С. 104022 - 104022

Опубликована: Янв. 10, 2025

Язык: Английский

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In situ construction of a hydrophobic channel interconnecting zincophilic planes on the Zn surface for enhanced stability of Zn metal anodes

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

Опубликована: Янв. 1, 2025

This work proposes a novel electrolyte additive, sulfobutylether-β-cyclodextrin, which remarkably improves the cycling stability of AZIBs with synergistic effect its zincophilic functional groups and unique adsorption configuration.

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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Tuning dual zincophilic/zincophobic properties of BaTiO3 dimorphic ceramic coatings through Sr2+ substitution for stabilizing Zn anodes

Journal of Energy Storage, Год журнала: 2025, Номер 114, С. 115821 - 115821

Опубликована: Фев. 12, 2025

Язык: Английский

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