Construct Robust Epitaxial Growth of (101) Textured Zinc Metal Anode for Long Life and High Capacity in Mild Aqueous Zinc‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(5)

Published: Nov. 23, 2023

Abstract Aqueous zinc‐metal batteries are considered to have the potential for energy storage due their high safety and low cost. However, practical applications of zinc limited by dendrite growth side reactions. Epitaxial is an effective method stabilizing Zn anode, especially manipulating (002) plane deposited zinc. texture difficult achieve stable cycle at capacity its large lattice distortion uneven electric field distribution. Here, a novel anode with highly (101) (denoted as (101)‐Zn) constructed. Due unique directional guidance strong bonding effect, (101)‐Zn can dense vertical electroepitaxy in near‐neutral electrolytes. In addition, grain boundary area inhibits occurrence The resultant symmetric cells exhibit excellent stability over 5300 h (4 mA cm −2 2 mAh ) 330 (15 10 ). Meanwhile, life Zn//MnO full cell meaningfully improved 1000 cycles.

Language: Английский

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Cation‐Conduction Dominated Hydrogels for Durable Zinc–Iodine Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 13, 2024

Abstract Zinc–iodine batteries have the potential to offer high energy‐density aqueous energy storage, but their lifetime is limited by rampant dendrite growth and concurrent parasite side reactions on Zn anode, as well shuttling of polyiodides. Herein, a cation‐conduction dominated hydrogel electrolyte designed holistically enhance stability both zinc anode iodine cathode. In this electrolyte, anions are covalently anchored chains, major mobile ions in restricted be 2+ . Specifically, such cation‐conductive results ion transference number (0.81) within guides epitaxial nucleation. Furthermore, optimized solvation structure reconstructed hydrogen bond networks chains contribute reduced desolvation barrier suppressed corrosion reactions. On cathode side, electrostatic repulsion between negative sulfonate groups polyiodides hinders loss active material. This all‐round design renders zinc–iodine with reversibility, low self‐discharge, long lifespan.

Language: Английский

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Polymers for Aqueous Zinc‐Ion Batteries: From Fundamental to Applications Across Core Components

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(12)

Published: Feb. 19, 2024

Abstract Aqueous zinc‐ion batteries (AZIBs) comprising zinc anodes hold intrinsic safety and high energy density ideally for distributed large‐scale storage, thus have generated intriguing properties increasing research interests. Unlike organic batteries, AZIBs require different, sometimes even opposite design principles preparation strategies in solvent, electrolyte, separator. This is especially true the polymer materials that are widely used as critical components stabilizing metal functioning high‐performance safe cathode materials. review discusses explicit compositional structural requisite of polymeric AZIBs, with an emphasis on exclusive molecular structure–property relationship governs stability, reversibility, capacity these devices. The usage polymers classified into five categories aligning primary architecture AZIBs: separators, additives, hydrogel electrolytes, coatings, electrode most recent advances structure/property interplay by novel synthesis techniques targeting stable summarized discussed. challenges perspectives multifunctional developing also proposed.

Language: Английский

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Hard carbon for sodium storage: Mechanism and performance optimization

Nano Research, Journal Year: 2024, Volume and Issue: 17(7), P. 6038 - 6057

Published: March 16, 2024

Language: Английский

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Engineering an Artificial Coating Layer of Metal Porphyrin‐Based Porous Organic Polymers Toward High Stable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: March 26, 2024

Abstract Aqueous zinc‐ion batteries (AZIBs) possess high theoretical capacity and good safety, making them highly hopeful for large‐scale energy storage applications. Nevertheless, the uncontrolled growth of Zn dendrites on anode significantly reduces cycle life AZIBs. In this study, a series porphyrin‐based porous organic polymers (CuTAPP‐NTCDA‐POP ZnTAPP‐NTCDA‐POP) are synthesized using aminophenylporphyrin (TAPP) aromatic dianhydride, which served as protective coating layers anode. The effectively prevents formation guides deposition 2+ because abundance zincophilic sites. As expected, symmetric cells equipped with optimum ZnTAPP‐NTCDA‐POP@Zn demonstrate longer over 1200 h at 0.5 mA cm −2 compared to bare (64 h). Moreover, when ammonium vanadate (NHVO) cathode is coupled anode, resulting full cell displays superior stability that sustains 350 cycles higher invertible (225 mAh g −1 1 A ). This performance surpasses just work proposes viable strategy address dendrites, presenting promising horizon widespread application

Language: Английский

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Construction of Robust Organic–Inorganic Interface Layer for Dendrite‐Free and Durable Zinc Metal Anode

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(19)

Published: Jan. 14, 2024

Abstract Constructing artificial interface layer is an effective approach to facilitate the utilization rate of zinc metal, but practical application still hindered by inferior mechanical strength, low ionic conductivity, and poor stability. Herein, robust organic–inorganic (Nafion/BM@Zn) coated on metal through ultrasonic spraying method with boehmite Nafion as composite precursor. As demonstrated, high cation selectivity hydrophilicity Nafion, well zincophilic property layered structure boehmite, synergistically contribute nucleation barrier, uniform deposition, fast transport kinetics Zn 2+ ions. a result, Nafion/BM@Zn anode exhibits superior reversibility Coulombic efficiency 99.9% for 9000 cycles in asymmetrical cells durable cycling stability 4200 h symmetrical at 5 mA cm −2 −1 mAh . Even seawater‐based electrolyte, displays reversible deposition behavior 820 99.91% 2800 Furthermore, corresponding Nafion/BM@Zn//NH 4 V O 10 cell presents capacity 258.4 g after 1500 A This work provides new design strategy high‐efficiency interfacial anode.

Language: 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, Journal Year: 2024, Volume and Issue: 674, P. 713 - 721

Published: June 24, 2024

Language: Английский

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Ultra‐Stable Zinc Anodes Facilitated by Hydrophilic Polypropylene Separators with Large Scale Production Capacity

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: June 27, 2024

Abstract Electrochemical Performance of aqueous Zn‐ion batteries (AZIBs) is prominently constrained by poor stability zinc‐metal anodes. However, the use conventional separators unfavorable to uniform deposition Zn metal and restricted cell cycle life, has hindered large‐scale application such battery systems. Here, a separator with hydrophobic/hydrophilic structural domains (marked as PP‐g‐AA) reported, where polypropylene (PP) polymer backbone permits partial blockage water molecules prevent side reactions, carboxyl functional groups in grafted acrylic acid (AA) facilitate well regulate interfacial electric field 2+ ion concentration field, thus remarkably promotes homogenization zinc flux, achieving dendritic‐free . Moreover, PP‐g‐AA sustains long‐term cycling over 4000 h at current density 2 mA cm −2 high Coulombic efficiency 99.6% achieved Zn||Cu cells, which if assembled into Zn||Zn 0.27 V O 5 ·nH (ZVO) cells would yield ≈100% retention for 1000 cycles. This research highlights that strategy opens up new avenue based on further decreasing cost promoting industrial AZIBs.

Language: Английский

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Biomass Chitin Nanofiber Separators Proactively Stabilizing Zinc Anodes for Dendrite‐Free Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 5, 2024

Abstract Aqueous zinc‐ion batteries (ZIBs) have generated extensive research attention for stationary energy storage, due to their advantaged superiority in terms of inherent safety, low cost, and eco‐friendliness. However, uncontrollable dendrite growth side reactions the Zn anode affect cycle life ZIBs. Conventional separators are almost ineffective inhibiting these issues. Herein, a chitin nanofiber membrane separator is developed tackle issues via simple, low‐cost, scalable strategy. The obtained exhibits abundant zincophilic functional groups, homogeneous nanopores, excellent mechanical properties, which facilitate desolvation hydrated 2+ ions, improve transference number, homogenize ion flux, simultaneously. Moreover, can also reduce deposition barrier, accelerate kinetics. Therefore, dendrites harmful effectively synchronously suppressed, enabling assembled ZIBs with an ultralong good rate capability. Impressively, Zn‐MnO 2 pouch cell stability safety under various external damages. above highlights mark significant step toward practical application

Language: Английский

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A Five Micron Thick Aramid Nanofiber Separator Enables Highly Reversible Zn Anode for Energy‐Dense Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(39)

Published: July 15, 2024

Abstract The rampant dendrites growth caused by uncontrolled deposition of Zn 2+ ions at metal anode poses a significant obstacle to the practical applications aqueous zinc‐ion batteries (ZIBs). Herein, an ultrathin (5 µm) aramid nanofiber (ANF) separator is reported enhance stability and ZIB energy density. Through systematic experimental studies DFT simulations, it demonstrated that ANF with unique surface polarity can modify solvation configuration, facilitate desolvation, regulate orientation ions. Consequently, demonstrates 85‐fold increase in running time beyond 850 h compared conventional glass fiber 5 mA cm −2 /2.5 mAh . Even under harsh depth discharge conditions 50% 80%, anodes still sustain extended cycling periods over 475 200 h, respectively. As pairing this thin high‐areal‐capacity Mn 2.5 V 10 O 24 ∙5.9H 2 cathode low negative capacity/positive capacity ratio (2.64) full cell, superior gravimetric/volumetric density (129.2 Wh kg −1 /142.5 L ) achieved, far surpassing majority counterparts literature. This work offers promising for promoting utilization energy‐dense ZIBs.

Language: Английский

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