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

Advanced Materials, Год журнала: 2024, Номер 36(16)

Опубликована: Янв. 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

Язык: Английский

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Bio‐Inspired Trace Hydroxyl‐Rich Electrolyte Additives for High‐Rate and Stable Zn‐Ion Batteries at Low Temperatures

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(9)

Опубликована: Янв. 5, 2024

High-rate and stable Zn-ion batteries working at low temperatures are highly desirable for practical applications, but challenged by sluggish kinetics severe corrosion. Herein, inspired frost-resistant plants, we report trace hydroxyl-rich electrolyte additives that implement a dual remodeling effect high-performance low-temperature batteries. The additive with high Zn absorbability not only remodels

Язык: Английский

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Interfacial Dual‐Modulation via Cationic Electrostatic Shielding and Anionic Preferential Adsorption toward Planar and Reversible Zinc Electrodeposition

Advanced Functional Materials, Год журнала: 2024, Номер 34(38)

Опубликована: Март 29, 2024

Abstract Rechargeable aqueous zinc‐ion batteries (ZIBs) with low cost and high safety arouse most promises as next‐generation energy storage configurations. Yet the heterogeneous electric field distributions interfacial side reactions are considered stumbling roadblocks toward commercialization of ZIBs. Here, these challenges via cationic electrostatic shielding anionic preferential adsorption by sodium gluconate (SG) additive addressed. The polar functional groups (─COO − ) SG anions preferentially anchor to Zn anode, which can alter 2+ migration pathways restrain reactions. Moreover, per smaller effective reduction potential, separated cations (Na + from serve a dynamic armor provide strong effect for uniform deposition on [002] crystal plane, radically eliminating dendrite growth promoting anti‐corrosion behaviors Zn. Consequently, Zn//Zn symmetric cell modified electrolyte confers lifespan up 600 h at 80% depth discharge. Furthermore, even under record‐low negative/positive ratio 2.11 lean 30 µL mAh −1 , Zn//VOX full remains enhanced capacity retention 84.37% after 800 cycles 1 A g . This work develops an dual‐modulation strategy provides unique insights enlighten practical application

Язык: Английский

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An effective descriptor for the screening of electrolyte additives toward the stabilization of Zn metal anodes

Energy & Environmental Science, Год журнала: 2024, Номер 17(9), С. 3157 - 3167

Опубликована: Янв. 1, 2024

In this work, the authors proposed desolvation activation energy as a critical descriptor for screening of electrolyte additives, establishing correlation between polarization and energy.

Язык: Английский

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Melamine induced co-regulation of solvation structure and interface engineering to achieve dendrite-free Zn-ion hybrid capacitors

Energy storage materials, Год журнала: 2024, Номер 66, С. 103208 - 103208

Опубликована: Янв. 20, 2024

Язык: Английский

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Natural honey helps stabilize zinc anode for dendrite-free aqueous zinc ion batteries

Energy storage materials, Год журнала: 2024, Номер 67, С. 103273 - 103273

Опубликована: Фев. 16, 2024

Язык: Английский

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Electrolyte Additive for Interfacial Engineering of Lithium and Zinc Metal Anodes

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Март 4, 2024

Abstract Electrolytes play a crucial role in facilitating the ionic movement between cathode and anode, which is essential for flow of electric current during charging discharging process rechargeable batteries. In particular, electrolyte additives are considered as effective economical approaches into advancements battery technologies both conventional non‐aqueous burgeoning aqueous systems. Herein, systematic comprehensive review reported interfacial engineering Li Zn metal anodes electrolytes, respectively. The types their corresponding functionalities protection these two discussed along with electrochemical features solid interphase (SEI) derived from additives. recent progress on systems also addressed perspectives electrode, electrolyte, associated SEI. Finally, outlook perspective issues future directions field additive presented next‐generation beyond Li‐ion

Язык: Английский

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Selection of Negative Charged Acidic Polar Additives to Regulate Electric Double Layer for Stable Zinc Ion Battery

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Авг. 14, 2024

Zinc-ion batteries are promising for large-scale electrochemical energy storage systems, which still suffer from interfacial issues, e.g., hydrogen evolution side reaction (HER), self-corrosion, and uncontrollable dendritic Zn electrodeposition. Although the regulation of electric double layer (EDL) has been verified principle to select additive as regulator is misted. Here, several typical amino acids with different characteristics were examined reveal behaviors in regulated EDL on anode. Negative charged acidic polarity (NCAP) unveiled guideline selecting reconstruct an inner zincophilic H

Язык: Английский

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Bio‐Inspired Trace Hydroxyl‐Rich Electrolyte Additives for High‐Rate and Stable Zn‐Ion Batteries at Low Temperatures

Angewandte Chemie, Год журнала: 2024, Номер 136(9)

Опубликована: Янв. 5, 2024

Abstract High‐rate and stable Zn‐ion batteries working at low temperatures are highly desirable for practical applications, but challenged by sluggish kinetics severe corrosion. Herein, inspired frost‐resistant plants, we report trace hydroxyl‐rich electrolyte additives that implement a dual remodeling effect high‐performance low‐temperature batteries. The additive with high Zn absorbability not only remodels 2+ primary solvent shell alternating H 2 O molecules, also forms shielding layer thus the surface, which effectively enhances fast de‐solvation reaction prohibits anode Taking α‐D‐glucose (αDG) as demonstration, obtains freezing point of −55.3 °C, Zn//Zn cell can stably cycle 2000 h 5 mA cm −2 under −25 cumulative capacity 5000 mAh . A full battery operates 10000 cycles −50 °C is demonstrated.

Язык: Английский

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Co‐Regulating Solvation Structure and Hydrogen Bond Network via Bio‐Inspired Additive for Highly Reversible Zinc Anode

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Июль 21, 2024

Abstract The feasibility of aqueous zinc‐ion batteries for large‐scale energy storage is hindered by the inherent challenges Zn anode. Drawing inspiration from cellular mechanisms governing metal ion and nutrient transport, erythritol introduced, a zincophilic additive, into ZnSO 4 electrolyte. This innovation stabilizes anode via chelation interactions between polysaccharides 2+ . Experimental tests in conjunction with theoretical calculation results verified that additive can simultaneously regulate solvation structure hydrated reconstruct hydrogen bond network within solution environment. Additionally, molecules preferentially adsorb onto anode, forming dynamic protective layer. These modifications significantly mitigate undesirable side reactions, thus enhancing transport deposition behavior. Consequently, there notable increase cumulative capacity, reaching 6000 mA h cm⁻ 2 at current density 5 cm −2 Specifically, high average coulombic efficiency 99.72% long cycling stability >500 cycles are obtained 1 Furthermore, full comprised MnO cathode an erythritol‐containing electrolyte deliver superior capacity retention. work provides strategy to promote performance anodes toward practical applications.

Язык: Английский

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