Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 31, 2024
The practical applications of aqueous Zn metal batteries are promising, yet still impeded by the corrosion reactions and dendrite growth on anode. Here, a self-adsorbed monolayer (SAM) is designed to stabilize Theory experiment results show that interfacial confinement effect SAM, for one thing, greatly suppresses through H
Language: Английский
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159342 - 159342
Published: Jan. 1, 2025
Language: Английский
Citations
2
ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 3, 2025
Aqueous magnesium-ion batteries (AMIBs) have garnered a lot of interest in future energy storage due to their high density, easy preparation, and excellent safety. Yet, the lack proper electrode material with high-capacity performance hinders its development. In this work, facile heterojunction VO2·xH2O@V2O5 (VOx) nanobelt structure was synthesized by an electrochemical deposition process for AMIBs first time. The specific combines advantages layered V2O5 tunnel-like VO2·xH2O, which shows capacity cycle stability. It rate performances 510 195.5 mAh g–1 at 0.05 5 A g–1, respectively, as well 100 after 1000 cycles 1 g–1. Combining experimental characterization theoretical calculations, we can show that structured water VOX improve conductivity diffusion Mg2+. mechanism study reveals undergoes cointercalation reaction H+ Mg2+ during discharge process. This not only highlights role structural heterogeneous design enhancing materials but also offers novel approach preparing high-performance AMIB system.
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 10, 2025
Abstract Recently, the development of Zn‐host materials in metal‐free aqueous Zinc ion batteries (AZIBs) has emerged as an effective strategy to address challenges uncontrollable dendrite growth and severe corrosion Zn anodes. Herein, layer‐by‐layer assembly conjugated polyimide nanocomposite (PTN‐MXene) through situ polymerization is proposed realize high energy density stability AZIBs. Specifically, unique layered structure abundant redox centers diketone‐based (PTN), combined with its structural compatibility MXene, enable formation a assembled 2D/2D heterostructure. This design ensures sufficient contact expands interlayer spacing facilitating faster electron/ion transport kinetics providing better access centers. Importantly, regulation behavior from H + or 2+ /Zn coinsertion PTN‐MXene achieved verified by different characterization techniques. Thus, anode exhibits specific capacity (283.4 mAh g −1 at 0.1 A ), excellent rate performance outstanding cycling performance. As proof‐of‐concept, full fabricated Prussian blue analogs cathode deliver 72.4 Wh kg exceptional over 2000 cycles.
Language: Английский
Citations
1
Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(44), P. 30190 - 30248
Published: Jan. 1, 2024
Degradation phenomena in different components (cathode, anode, current collectors (CCs)) of mono- and divalent metal-based batteries affect their performance.
Language: Английский
Citations
7
ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 337 - 344
Published: Dec. 20, 2024
Uncontrollable dendrite growth and severe parasitic side reactions on Zn electrodes pose formidable challenges for the application of aqueous Zn-ion batteries. Herein, we engineered a biomimetic inorganic–organic protective layer composed alginic acid lithium magnesium silicate to enhance stability reversibility electrode. This not only diminishes free water concentration near surface but also creates negatively charged ion microchannels transport ions modulate solvation structure. Moreover, robust Mg-SiO2 interphase with high Young's modulus strong zincophilicity can be formed between electrode layer, facilitating uniform deposition along Zn(002) planes. Consequently, this allows achieve impressive cycling lifespan 5500 h at 1 mA cm–2/1 mAh cm–2 Coulombic efficiency 99.5% delivers remarkable cyclability up 8000 cycles in Zn||V2O5 full cells.
Language: Английский
Citations
7
ACS Nano, Journal Year: 2024, Volume and Issue: 18(44), P. 30896 - 30909
Published: Oct. 26, 2024
Intercalation engineering is a promising strategy to promote zinc-ion storage of layered cathodes; however, impeded by the complex fabrication routes and inert electrochemical behaviors intercalators. Herein, an organic imidazole intercalation proposed, where V2O5 NH4V3O8 (NVO) model materials are adopted verify feasibility intercalator in improving zinc capabilities vanadium-based cathodes. The intercalated molecules could not only expand interlayer spacing strengthen structural stability serving as extra "pillars" but also provide coordination sites for via reaction between Zn2+ C═N group. This gives rise dual-mode ion mechanism favorable performances. As result, imidazole-intercalated delivers capacity 179.9 mAh g-1 after 5000 cycles at 20 A g-1, while NVO harvests high output 170.2 700 2 g-1. work anticipated boost application potentials cathodes aqueous batteries.
Language: Английский
Citations
6
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
Abstract Long‐standing challenges including notorious side reactions at the Zn anode, low anode utilization, and rapid cathode degradation current densities hinder advancement of aqueous zinc‐ion batteries (AZIBs). Inspired by critical role capping agents in nanomaterials synthesis bulk crystal growth, a series are employed to demonstrate their applicability AZIBs. Here, it is shown that preferential adsorption on different planes, coordination between 2+ ions, interactions with metal oxide cathodes enable preferred (002) deposition, water‐deficient ion solvation structure, dynamic cathode‐electrolyte interface. Benefiting from multi‐functional agents, dendrite‐free plating stripping an improved Coulombic efficiency 99.2% enhanced long‐term cycling stability realized. Remarkable capacity retention 91% achieved for after more than 500 cycles under density 200 mA g −1 , marking one best stabilities date. This work provides proof‐of‐concept manipulating electrochemical behaviors, which should inspire pave new avenue research address practical energy storage beyond
Language: Английский
Citations
0
ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 18, 2025
Aqueous zinc-ion batteries (AZIBs) as a new generation of environmentally friendly, high-security, and low-cost energy storage devices have received extensive attention from researchers. Coordination polymers (CPs) show great potential cathode materials for AZIBs due to their tunable composition, diverse functional groups, highly ordered porous channels, easily controllable structure. Nevertheless, the inherent limitations CPs including poor electrical conductivity low chemical stability severely constrain cycling rate property AZIBs. Herein, crystalline calcium-based CP (Ca-ddmb/Ca2L(H2O)2) with 2D-layered structure was directly successfully grown on nanocarbon black via simple solvothermal method. The resulting Ca-ddmb@C composite high designed construct high-performance Profiting synergistic effect abundant active sites Ca-ddmb conductive nanocarbon, exhibited reversible capacity 346.75 mAh g–1 at 100 mA demonstrated superb performance 53.34 2000 g–1. An in-depth study zinc mechanism through series characterization techniques revealed redox-active Ca-ddmb. This provides insights into design desirable-performance CP-based
Language: Английский
Citations
0
ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 12, 2025
Aqueous zinc ion batteries are gaining prominent attention due to their potentially high safety, low cost, and volumetric capacity. However, disparities still exist in specific capacity kinetic performances within the electrode materials of batteries. Herein, electrochemical properties layered vanadium oxide (VOH) nanorods adopting Sr2+ La3+ as pillars were investigated systematically. It was shown that (1La,1Sr)-VOH possessed a around 345.8 mAh g–1 at current density 1 A g–1, which remarkably higher than VOH 1Sr-VOH (208.34 g–1). Characterizations demonstrated benefiting from role pillars, enlarged layer spacing enhanced storage kinetics during reactions. The tested diffusion coefficient 1.16 × 10–11 cm2 s–1, much (7.31 10–12 s–1), demonstrating smooth charge transfer process as-synthesized (1La,1Sr)-VOH.
Language: Английский
Citations
0
Chemical Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Hydrogen bond chemistry in a boron nitride-polyacrylonitrile separator is elucidated through situ detections with its effect on Zn 2+ desolvation and ion transport, providing aqueous zinc-ion batteries improved electrochemical performance.
Language: Английский
Citations
0