Developing Cathode Materials for Aqueous Zinc Ion Batteries: Challenges and Practical Prospects

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(5)

Published: April 18, 2023

Abstract Growth in intermittent renewable sources including solar and wind has sparked increasing interest electrical energy storage. Grid‐scale storage integrated with significant advantages regulation grid security. Aqueous zinc‐ion batteries (AZIBs) have emerged as a practically attractive option for because of environmentally benign aqueous‐based electrolytes, high theoretical capacity Zn anode, global reserves Zn. However, application AZIBs at the grid‐scale is restricted by drawbacks cathode material(s). Herein, comprehensive summary features mechanisms latest materials provided. The fundamental problems corresponding in‐depth causes critically reviewed. It also assess practical challenges, appraise their translation to commerce industry, systematically summarize discuss potential solutions reported recent works. established necessary design strategies anodes electrolytes that are matched commercializing AZIBs. Finally, it concluded perspective on prospects advancing development future Findings will be benefit range researchers manufacturers

Language: Английский

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Addition of Dioxane in Electrolyte Promotes (002)-Textured Zinc Growth and Suppressed Side Reactions in Zinc-Ion Batteries

ACS Nano, Journal Year: 2023, Volume and Issue: 17(4), P. 3765 - 3775

Published: Feb. 8, 2023

The reversibility and cyclability of aqueous zinc-ion batteries (ZIBs) are largely determined by the stabilization Zn anode. Therefore, a stable anode/electrolyte interface capable inhibiting dendrites side reactions is crucial for high-performing ZIBs. In this study, we investigated adsorption 1,4-dioxane (DX) to promote exposure (002) facets prevent dendrite growth. DX appears reside at suppress detrimental reactions. ZIBs with addition demonstrated long-term cycling stability 1000 h in harsh conditions 10 mA cm–2 an ultrahigh cumulative plated capacity 5 Ah shows good average Coulombic efficiency 99.7%. Zn//NH4V4O10 full battery achieves high specific (202 mAh g–1 A g–1) retention (90.6% after 5000 cycles), much better than that pristine ZnSO4 electrolyte. By selectively adjusting Zn2+ deposition rate on crystal adsorbed molecules, work provides promising modulation strategy molecular level anodes can potentially be applied other metal suffering from instability irreversibility.

Language: Английский

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In situ construction of zinc-rich polymeric solid–electrolyte interface for high-performance zinc anode

eScience, Journal Year: 2023, Volume and Issue: 3(4), P. 100153 - 100153

Published: June 1, 2023

With their excellent reliability and environmental friendliness, zinc-ion batteries (ZIBs) are regarded as potential energy storage technologies. Unfortunately, poor cycling durability low Coulombic effectiveness (CE), driven by dendritic growth surface passivation on the Zn anode, severely restrict commercialization. Herein, we describe in situ construction of a Zn-rich polymeric solid–electrolyte interface (SEI) using polyacrylic acid (PAA) an electrolyte additive. On one hand, PAA SEI layer offers evenly distributed nucleation sites promotes ion transport, hence suppressing dendrite growth. other prevents direct contact between foil electrolyte, thus inhibiting side reactions. Additionally, robust coordination with Zn2+ layer’s good adherence to provide long-term protection anode. As result, symmetric cells Zn/V2O5 all deliver prolonged life cycles superior electrochemical efficiency.

Language: Английский

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Polyhydroxylated Organic Molecular Additives for Durable Aqueous Zinc Battery

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(4)

Published: Sept. 27, 2023

Abstract The large‐scale deployment of aqueous Zn‐ion batteries is hindered by Zn anode instability including surface corrosion, hydrogen gas evolution, and irregular deposition. To tackle these challenges, a polyhydroxylated organic molecular additive, trehalose, incorporated to refine the solvation structure promote planar Within regions involving hydroxy groups participate in reconstruction bond networks, which increases overpotential for water decomposition reaction. Moreover, at metal–molecule interface, chemisorption trehalose onto zinc enhances corrosion resistance facilitates deposition manner. optimized electrolyte significantly improves striping/plating reversibility maintains stable potentials over 1600 h 5 mA cm −2 with cutoff capacity 1 symmetric cells. When combined MnO 2 cathode, assembled coin cell retains ≈89% its after 1000 cycles. This molecule emphasizing role molecules fine‐tuning structures anode/electrolyte interfaces, holds promise enhancing various metal batteries.

Language: Английский

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Low‐Cost Multi‐Function Electrolyte Additive Enabling Highly Stable Interfacial Chemical Environment for Highly Reversible Aqueous Zinc Ion Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(49)

Published: Sept. 1, 2023

Abstract The practicality of aqueous zinc ion batteries (AZIBs) for large‐scale energy storage is hindered by challenges associated with anodes. In this study, a low‐cost and multi‐function electrolyte additive, cetyltrimethyl ammonium bromide (CTAB), presented to address these issues. CTAB adsorbs onto the anode surface, regulating Zn 2+ deposition orientation inhibiting dendrite formation. It also modifies solvation structure reduce water reactivity minimize side reactions. Additionally, optimizes key physicochemical parameters electrolyte, enhancing stability electrode/electrolyte interface promoting reversibility in AZIBs. Theoretical simulations combined operando synchrotron radiation‐based situ Fourier transform infrared spectra electrochemical impedance further confirm modified coordination environment adsorption effect cations at anode/electrolyte interface. As result, assembled Zn‐MnO 2 battery demonstrates remarkable specific capacity 126.56 mAh g −1 high current density 4 A after 1000 cycles. This work highlights potential as promising solution improving performance AZIBs applications.

Language: Английский

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Dendrite-Free and Highly Stable Zn Metal Anode with BaTiO₃/P(VDF-TrFE) Coating

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(7), P. 2886 - 2896

Published: June 2, 2023

Aqueous rechargeable Zn metal batteries have garnered increasing attention due to their high theoretical capacity, safety, and low cost. However, commercialization has been impeded by the rapid cycling deterioration caused side reactions dendrite growth on anodes. The present work explores a dielectric organic–inorganic film with hydrophobic surface circumvent these problems suppress zinc anode. Dielectric BaTiO3/P(VDF-TrFE) (BTO/PVT) coating demonstrated promote uniform deposition inhibit growth. also regulates Zn-ion desolvation process at interfaces is crucial in preventing water from harming anode surface, leading dendrite-free little formation of byproducts. resulting BTO/PVT@Zn long lifespan 3000 h an average Coulombic efficiency 99.6% 1 mA cm–2. In addition, BTO/PVT@Zn||NH4V4O10 full cell shows good rate capability lifespan.

Language: Английский

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Highly Reversible Zinc Metal Anodes Enabled by Solvation Structure and Interface Chemistry Modulation

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(36)

Published: Aug. 9, 2023

Abstract Aqueous Zn−ion batteries (AZIBs) promise appealing advantages including safety, affordability, and high volumetric energy density. However, rampant parasitic reactions dendrite growth result in inadequate Zn reversibility. Here, a biocompatible additive, L‐asparagine (Asp), low‐cost aqueous electrolyte, is introduced to address these concerns. Combining substantive verification tests theoretical calculations, it demonstrated that an Asp‐containing ZnSO 4 electrolyte can create robust nanostructured solid‐electrolyte interface (SEI) by simultaneously modulating the 2+ solvation structure optimizing metal‐molecule interface, which enables dense deposition. The optimized supports excellent reversibility achieving dendrite‐free plating/stripping over 240 h at utilization of 85.5% symmetrical cell average 99.6% Coulombic efficiency for 1600 cycles asymmetrical cell. Adequate full‐cell performance with poly(3,4‐ethylenedioxythiophene) intercalated vanadium oxide (PEDOT‐V 2 O 5 ) cathode, delivers areal capacity 4.62 mAh cm −2 holds 84.4% retention 200 under practical conditions ultrathin anode (20 µm) low negative/positive ratio (≈2.4). This engineering strategy provides new insights into regulating anode/electrolyte interfacial chemistries toward high‐performance AZIBs.

Language: Английский

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An Aqueous Electrolyte Regulator for Highly Stable Zinc Anode Under −35 to 65 °C

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(40)

Published: Sept. 13, 2023

Abstract The reversibility and long‐term cycling stability of aqueous zinc‐ion batteries (AZIBs) in a wide temperature range have rarely been explored. Herein, diethylene glycol monoethyl ether (DG) is introduced as an electrolyte additive to enhance Zn performance within −35 65 °C. Operando synchrotron Fourier transform infrared spectroscopy analysis combined with molecular dynamics simulations reveal that the introduction DG disrupts initial hydrogen bonding network electrolyte, restructuring solvation structure surrounding 2+ ions mitigating water‐induced parasitic reactions. Adding reduces freezing point without compromising its incombustibility. Moreover, operando electrochemical quartz crystal microbalance dissipation monitoring (EQCM‐D) X‐ray photoelectron demonstrated coordinated OTF − undergo reductive decomposition, forming self‐healing solid interphase comprising inorganic/organic ZnF 2 ‐ZnS, which can effectively suppress notorious side reactions guide uniform deposition. Consequently, symmetric Zn/Zn cells demonstrate excellent for 3500 h under 1 mA cm −2 at 25 °C, 1000 both Full DG‐containing exhibit long lifespan 5000 cycles A g −1 .

Language: Английский

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Hetero‐Polyionic Hydrogels Enable Dendrites‐Free Aqueous Zn‐I₂ Batteries with Fast Kinetics

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(44)

Published: Aug. 23, 2023

Rechargeable aqueous Zn-I2 batteries (ZIB) are regarded as a promising energy storage candidate. However, soluble polyiodide shuttling and rampant Zn dendrite growth hamper its commercial implementation. Herein, hetero-polyionic hydrogel is designed the electrolyte for ZIBs. On cathode side, iodophilic polycationic (PCH) effectively alleviates shuttle effect facilitates redox kinetics of iodine species. Meanwhile, polyanionic (PAH) toward metal anode uniformizes Zn2+ flux prevents surface corrosion by electrostatic repulsion polyiodides. Consequently, symmetric cells with PAH demonstrate remarkable cycling stability over 3000 h at 1 mA cm-2 (1 mAh ) 800 10 (5 ). Moreover, full PAH-PCH deliver low-capacity decay 0.008 ‰ per cycle during 18 000 cycles 8 C. This work sheds light on electrolytes design long-life conversion-type batteries.

Language: Английский

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Covalent triazine frameworks for advanced energy storage: challenges and new opportunities

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(8), P. 3181 - 3213

Published: Jan. 1, 2023

This Review provides a comprehensive overview of recent advancements in CTF materials and CTF-based batteries. The aims to make batteries viable for next-generation high-energy battery systems.

Language: Английский

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