Functionalized Separator Strategies toward Advanced Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(20)

Published: April 7, 2023

Abstract Aqueous zinc‐ion batteries (ZIBs) enjoy a good reputation for being safe, affordable to produce, and ecologically friendly due the use of water‐based electrolytes. The main factors restricting development ZIBs, however, are negative effects dendrite deposition on zinc anode dissolution common cathodes such as Mn V‐based cathodes. Various techniques have been used address these issues, including regulating electrolyte concentration or solvation structure, developing coating current collector lessen growth, improving structural stability cathode. Recently, functionalized separator strategies gained popularity effective ways improve ZIB performance. is also practical technique save costs increase volumetric energy density battery by substituting usual thick expensive glass fiber separator. separators in ZIBs subject ongoing research, this work presents most recent findings systematic manner, focusing both methods prepare modify them. Finally, brief explanation constraints future potential provided.

Language: Английский

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In Situ Construction of Anode–Molecule Interface via Lone‐Pair Electrons in Trace Organic Molecules Additives to Achieve Stable Zinc Metal Anodes

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(22)

Published: April 25, 2023

Abstract The practical application of aqueous zinc batteries (AZBs) is significantly limited by the poor reversibility anodes, including rampant dendrite growth and severe interfacial side‐reactions. Herein, trace hexamethylenetetramine (HMTA) additive with a lone‐pair‐electron containing heterocycle introduced for Zn metal anode protection. Specifically, added HMTA can change solvated structure strong interaction ions, preferentially absorb on surface to in situ establish an unique anode–molecule interface. Such interface not only shows affinity promote dynamic transmission deposition 2+ ions but also displays role suppressing parasitic reactions. Consequently, electrolyte achieves high Coulombic efficiency 99.75%, delivers remarkable lifespan over 4000 h at 5 mA cm −2 1 mAh Zn//Zn symmetric cell. Even under deep plating/stripping condition (5 ), it still run almost 600 h. Additionally, Zn//V 2 O full cell retains capacity retention 61.7% after cycles A g −1 . innovative strategy expected be immediate benefit design low‐cost AZBs ultra‐long lifespan.

Language: Английский

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A Double‐Charged Organic Molecule Additive to Customize Electric Double Layer for Super‐Stable and Deep‐Rechargeable Zn Metal Pouch Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(8)

Published: Nov. 12, 2023

Abstract The electrochemical performance of aqueous zinc metal batteries (AZMBs) is highly dependent on the electric double layer (EDL) properties at Zn electrode/electrolyte interface. Herein, a novel reconfigured EDL constructed via double‐charged theanine (TN) additive for super‐stable and deep‐rechargeable AZMBs. Experiments theoretical computations unravel that positively charged TN not only serves as preferential anchor to form water‐poor Helmholtz plane onto anode, but also its anionic end could coordinate with 2+ tailor solvation structure in diffusion further reconstruct inner H‐bonds networks, thus effectively guiding uniform deposition suppressing water‐induced side reactions. Consequently, Zn//Zn cells acquire outstanding cycling stabilities nearly 800 h high depth discharge 80%. Moreover, Zn//VOX full deliver substantial capacity retention (94.12% after 1400 cycles 2 A g −1 ) under practical conditions. Importantly, designed 2.7 Ah pouch cell harvests recorded energy density 42.3 Wh Kg 79.5 L –1 , remarkable 85.93% 220 50 mA . This innovative design concept reshape chemistry would inject fresh vitality into developing advanced AZMBs beyond.

Language: Английский

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Design Strategies for Aqueous Zinc Metal Batteries with High Zinc Utilization: From Metal Anodes to Anode-Free Structures

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 4, 2024

Aqueous zinc metal batteries (AZMBs) are promising candidates for next-generation energy storage due to the excellent safety, environmental friendliness, natural abundance, high theoretical specific capacity, and low redox potential of (Zn) metal. However, several issues such as dendrite formation, hydrogen evolution, corrosion, passivation Zn anodes cause irreversible loss active materials. To solve these issues, researchers often use large amounts excess ensure a continuous supply materials anodes. This leads ultralow utilization squanders density AZMBs. Herein, design strategies AZMBs with discussed in depth, from utilizing thinner foils constructing anode-free structures 100%, which provides comprehensive guidelines further research. Representative methods calculating depth discharge different first summarized. The reasonable modification foil anodes, current collectors pre-deposited Zn, aqueous (AF-AZMBs) improve then detailed. In particular, working mechanism AF-AZMBs is systematically introduced. Finally, challenges perspectives high-utilization presented.

Language: Английский

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Nanomicellar Electrolyte To Control Release Ions and Reconstruct Hydrogen Bonding Network for Ultrastable High-Energy-Density Zn–Mn Battery

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(36), P. 20109 - 20120

Published: Sept. 1, 2023

Zn–Mn batteries with two-electron conversion reactions simultaneously on the cathode and anode harvest a high voltage plateau energy density. However, zinc faces dendrite growth parasitic side while Mn2+/MnO2 reaction involves oxygen evolution possesses poor reversibility. Herein, novel nanomicellar electrolyte using methylurea (Mu) has been developed that can encapsulate ions in nanodomain structure to guide homogeneous deposition of Zn2+/Mn2+ form controlled release under an external electric field. Consecutive hydrogen bonding network is broken favorable local system established, thus inhibiting water-splitting-derived reactions. Concomitantly, solid–electrolyte interface protective layer situ generated Zn anode, further circumventing corrosion issue resulting from penetration water molecules. The reversibility also significantly enhanced by regulating interfacial wettability improving nucleation kinetics. Accordingly, modified endows symmetric Zn∥Zn cell extended cyclic stability 800 h suppressed dendrites at areal capacity 1 mAh cm–2. assembled electrolytic battery demonstrates exceptional retention nearly 100% after cycles superior density Wh kg–1 0.5

Language: Английский

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Hydroxyapatite: A journey from biomaterials to advanced functional materials

Advances in Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 321, P. 103013 - 103013

Published: Oct. 7, 2023

Hydroxyapatite (HAp), a well-known biomaterial, has witnessed remarkable evolution over the years, transforming from simple biocompatible substance to an advanced functional material with wide range of applications. This abstract provides overview significant advancements in field HAp and its journey towards becoming multifunctional material. Initially recognized for exceptional biocompatibility bioactivity, gained prominence bone tissue engineering dental Its ability integrate surrounding tissues, promote cellular adhesion, facilitate osseointegration made it ideal candidate various biomedical implants coatings. As understanding grew, researchers explored potential beyond traditional biomaterial With advances synthesis engineering, began exhibit unique properties that extended utility other disciplines. Researchers successfully tailored composition, morphology, surface characteristics HAp, leading enhanced mechanical strength, controlled drug release capabilities, improved biodegradability. These modifications enabled utilization delivery systems, biosensors, scaffolds, regenerative medicine Moreover, biomineralization allowed incorporation ions molecules during synthesis, development bioactive coatings composites specific therapeutic functionalities. functionalized materials have demonstrated promising results antimicrobial coatings, systems growth factors agents, even as catalysts chemical reactions. In recent nanoparticles nanostructured emerged focal point research due their physicochemical targeted delivery, imaging, theranostic The manipulate size, shape, chemistry at nanoscale paved way innovative approaches personalized therapies. highlights exploration novel methods, modifications, nanoengineering techniques expanded horizon applications, enabling integration into diverse fields ranging biomedicine catalysis. Additionally, this manuscript discusses emerging prospects HAp-based photocatalysis, sensing, energy storage, showcasing realm progresses, future holds tremendous revolutionize medical treatments contribute advancement science technology.

Language: Английский

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Comprehensive Understandings of Hydrogen Bond Chemistry in Aqueous Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(3)

Published: Nov. 1, 2023

Aqueous batteries are emerging as highly promising contenders for large-scale grid energy storage because of uncomplicated assembly, exceptional safety, and cost-effectiveness. The unique aqueous electrolyte with a rich hydrogen bond (HB) environment inevitably has significant impact on the electrode materials electrochemical processes. While numerous reviews have focused design assembly batteries, utilization HB chemistry is overlooked. Herein, instead merely compiling recent advancements, this review presents comprehensive summary analysis profound implication exerted by all components batteries. Intricate links between novel various ingeniously constructed within critical aspects, such self-discharge, structural stability materials, pulverization, solvation structures, charge carrier diffusion, corrosion reactions, pH sensitivity, water splitting, polysulfides shuttle, H

Language: Английский

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Attenuating Water Activity Through Impeded Proton Transfer Resulting from Hydrogen Bond Enhancement Effect for Fast and Ultra‐Stable Zn Metal Anode

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(44)

Published: Oct. 9, 2023

Abstract The high activity of water molecules induces notorious side reactions that seriously impair the stability Zn metal anode. Inspired by mechanism proton transfer in an aqueous solution, ectoine (ET) with a kosmotropic effect is first introduced into typical electrolyte zinc‐ion batteries (ZIBs). hydrogen bond enhancement brought ET additive increases energy barrier for reconfiguration bonds, thereby impeding hopping transport protons based on Grotthuss mechanism. inhibited evolution reaction (HER) impeded strongly proved situ electrochemical gas chromatography (EC‐GC). distinctive results remarkably improved anode while maintaining fast kinetics. Consequently, Zn//Zn symmetric cell delivers ultra‐long cycle life 5700 h 1 mA cm −2 /1 mAh and 2000 at 5 /5 lower voltage hysteresis, extending cycling >27 24 times without sacrificing

Language: Английский

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Amino‐Enabled Desolvation Sieving Effect Realizes Dendrite‐Inhibiting Thin Separator for Durable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(52)

Published: Sept. 15, 2023

Abstract The cyclability of aqueous zinc‐ion batteries is greatly influenced by Zn dendrites and parasitic reactions. Although separator modifications have proven to be effective in addressing these issues, most the developed separators are too thick meet practical requirements. Herein, an amino (−NH 2 )‐functionalized Zr‐based metal–organic framework (MOF), i.e., UiO‐66‐NH , incorporated into lignocellulose separator. functional groups not only possess good zincophilicity but also strongly interact with H O molecules through hydrogen bonding. Therefore, abundant intersecting subnano‐sized channels within act as desolvation sieves facilitate migration uniform distribution 2+ ions. Even at a rather low thickness 20 µm, modified can significantly improve reversibility electrochemistry suppress water‐induced evolution. With use this separator, electrodes demonstrate working life exceeding 2000 h current density mA cm −2 remarkable dendrite‐free characteristic remain operationally viable under ultrahigh areal capacity 25 mAh . Additionally, resultant Zn//MnO battery provides superior rate capability excellent cyclability. This study novel insights utilization inhibit unfavorable phenomena batteries.

Language: Английский

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A Functional Janus Ag Nanowires/Bacterial Cellulose Separator for High‐Performance Dendrite‐Free Zinc Anode Under Harsh Conditions

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(47)

Published: Sept. 20, 2023

Aqueous zinc-ion batteries (AZIBs) offer promising prospects for large-scale energy storage due to their inherent abundance and safety features. However, the growth of zinc dendrites remains a primary obstacle practical industrialization AZIBs, especially under harsh conditions high current densities elevated temperatures. To address this issue, Janus separator with an exceptionally ultrathin thickness 29 µm is developed. This features bacterial cellulose (BC) layer on one side Ag nanowires/bacterial (AgNWs/BC) other side. High zincophilic property excellent electric/thermal conductivity AgNWs make them ideal serving as ion pump accelerate Zn2+ transport in electrolyte, resulting greatly improved conductivity, deposition homogeneous Zn nuclei, dendrite-free Zn. Consequently, Zn||Zn symmetrical cells exhibit stable cycle life over 1000 h 80 mA cm-2 are sustained 600 at 10 50 °C. Further, enables cycling stability aqueous capacitors (AZICs), scaled-up flexible soft-packaged batteries. study demonstrates potential functional separators promoting application batteries, particularly conditions.

Language: Английский

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