Electrolyte Additives for Stable Zn Anodes

Advanced Science, Год журнала: 2023, Номер 11(4)

Опубликована: Ноя. 27, 2023

Abstract Zn‐ion batteries are regarded as the most promising for next‐generation, large‐scale energy storage because of their low cost, high safety, and eco‐friendly nature. The use aqueous electrolytes results in poor reversibility leads to many challenges related Zn anode. Electrolyte additives can effectively address such challenges, including dendrite growth corrosion. This review provides a comprehensive introduction major current strategies used anode protection. In particular, an in‐depth fundamental understanding is provided various functions electrolyte additives, electrostatic shielding, adsorption, situ solid interphase formation, enhancing water stability, surface texture regulation. Potential future research directions also discussed.

Язык: Английский

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Dendrite‐Free Zinc Anode via Oriented Plating with Alkaline Earth Metal Ion Additives

Advanced Functional Materials, Год журнала: 2024, Номер 34(32)

Опубликована: Апрель 3, 2024

Abstract The cost‐effectiveness and environmentally friendly nature of aqueous zinc‐ion batteries (ZIBs) have garnered significant attention. Nevertheless, obstacles such as dendrite growth side reactions hindered their practical application. Here, an alkaline earth metal ion, strontium ions (Sr 2+ ), is chosen a dual‐functional electrolyte additive to improve the reversibility ZIBs. Importantly, Sr adsorb on anode surface, creating dynamic electrostatic shield layer, thus regulating Zn deposition behavior suppressing reactions. Meanwhile, prefer (002) (110) planes Zn, inducing preferential (100) crystal plane achieving dendrite‐free zinc anode. Consequently, assembled Zn||Zn symmetric battery delivers ultralong lifespan 3500 h, Zn||Ti asymmetric shows superior Coulombic efficiency 99.8% for stripping/plating at 2 mA cm −2 . Further, Zn||NH 4 V O 10 presents excellent retention 97.7% over 800 cycles under A g −1 This research introduces novel ion establishes its persistent shielding effect preferentially oriented plating, ensuring deposition. These findings chart course further exploration unexplored elements in enhancing technologies.

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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Mapping the design of electrolyte additive for stabilizing zinc anode in aqueous zinc ion batteries

Energy storage materials, Год журнала: 2024, Номер 68, С. 103364 - 103364

Опубликована: Март 24, 2024

Язык: Английский

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3D Ternary Alloy Artificial Interphase Toward Ultra‐Stable and Dendrite‐Free Aqueous Zinc Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Апрель 9, 2024

Abstract Rechargeable aqueous zinc‐ion batteries (AZIBs) are one of the most promising post‐lithium battery technologies due to their low cost, high safety, and environmental friendliness. However, practical development is hindered by issues Zn metal anodes, including dendrite growth, passivation, hydrogen evolution other side reactions. Herein, circumvent these issues, a facile universal alloy electrodeposition strategy proposed construct 3D structured ternary artificial interphase layer on foil as an anode for high‐performance AZIBs. The density functional theory (DFT) theoretical calculations, in situ optical visualization spectroscopic results validate that zincophilic Zn─Sn─Bi@Zn with lower migration energy barrier weak adsorption sites can promote uniform deposition suppress Zn─Sn─Bi@Zn//NH 4 V O 10 full cell demonstrates specific capacity 110.4 mAh g −1 even after 000 cycles at 5.0 A . Notably, NH cathode loading mass ≈20.0 mg cm −2 maintains cyclic stability 400 cycles. This work proposes innovative Zn‐based methodology design advanced AZIBs beyond.

Язык: Английский

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Non‐Expendable Regulator Enables Durable and Deep Cycling Aqueous Zinc Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(25)

Опубликована: Апрель 23, 2024

Abstract Unstable electrode/electrolyte interface with irreversible Zn deposition and hydrogen reactions have severely damage the cycle life of aqueous zinc‐metal batteries (ZMBs), which is closely related to interfacial environment behavior 2+ . In this work, a series rare earth chlorides (RCl 3 ) are proposed as non‐expendable regulators address above problems. Specifically, cations (R 3+ high adsorption energy can simultaneously isolate adsorbed polar H 2 O molecule layer at anode regulate uniform by electrostatic shielding. Meanwhile, Cl − binds molecules via weak bonds, thus further inhibiting water‐related side reactions. Consequently, optimized Zn||Zn symmetric cell stably for over 8000 cycles 5 mA cm −2 Surprisingly, 68.3% zinc utilization also be operated 130 h. Even under harsh condition low N/P ratio 2.6:1 mass‐loading cathode 12.57 mg , NH 4 V 10 ||Zn pouch preserves nearly all its capacity after 300 cycles. Further, more respectable 37.3 mAh deep cycling 180 This study sheds light on additives develop highly durable ZMBs.

Язык: Английский

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Guiding uniform Zn deposition with a multifunctional additive for highly utilized Zn anodes

Nanoscale, Год журнала: 2024, Номер 16(40), С. 18835 - 18842

Опубликована: Янв. 1, 2024

The practical applications of aqueous zinc-ion batteries (AZIBs) have been restricted by the fast growth Zn dendrites and severe side reactions at Zn/electrolyte interface. Herein, a multifunctional additive, L-leucine (Leu), is incorporated into mild acidic electrolyte to stabilize anode. Leu molecule, featuring both carboxyl amino groups, exhibits strong interactions with Zn2+, which can reshape solvation structure Zn2+ facilitate uniform electrodeposition Zn. Simultaneously, molecule preferential adsorption onto surface, effectively isolating it from direct contact water, thus suppressing unwanted reactions. Consequently, Zn∥Cu asymmetric cell high stable coulombic efficiency 99.5% current density 5 mA cm-2 for 1100 h. Importantly, capacity retention Zn∥NH4V4O10 full based on reaches 80% after 1200 cycles 2 A g-1. successful application low-cost enhances cycling stability AZIBs accelerates their applications.

Язык: Английский

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Overcoming challenges of protonation effects induced by high isoelectric point amino acids through a synergistic strategy towards highly stable and reversible zinc electrode-electrolyte interface

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 674, С. 713 - 721

Опубликована: Июнь 24, 2024

Язык: Английский

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Enhancing Zinc Anode Stability with Gallium Ion‐Induced Electrostatic Shielding and Oriented Plating

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 16, 2024

Abstract The cost‐effectiveness and environmental benefits of aqueous zinc‐ion batteries (ZIBs) have attracted considerable attention. However, practical applications are hindered by side processes including dendritic growth hydrogen evolution corrosion. Herein, gallium ions (Ga 3+ ) been chosen as a multifunctional electrolyte additive to improve the reversibility (ZIBs). Remarkably, Ga adhere anode surface, establishing dynamic electrostatic shielding layer that modulates Zn 2+ deposition prevents reactions. Typically, preferentially adsorb onto (002) (110) planes Zn, facilitating preferential on (100) plane, resulting in dendrites‐free zinc anode. Consequently, Zn||Zn symmetrical cell with ‐modified demonstrates prolonged lifespan 4000 h, while Zn||Ti asymmetric exhibits an impressive coulombic efficiency 99.12% for stripping plating at 2 mA cm −2 . Additionally, Zn||VO maintains high capacity retention after 1500 cycles 5 A g −1 This work presents additive, development durable effect plane electroplating, ensuring free from dendrite formation. Such discoveries form basis future investigations into novel materials propel advancements metal battery technology.

Язык: Английский

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Interface regulation using a fluorinated vinylene-linked covalent organic framework for a highly stable Zn anode

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(13), С. 7799 - 7806

Опубликована: Янв. 1, 2024

Herein, a functional vinylene-linked COF with zincophilic fluorinated sites is well designed and applied as an interface layer to simultaneously manipulate the Zn plating/stripping behavior interfacial side reactions.

Язык: Английский

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