Dual Effects of Metal and Organic Ions Co‐Intercalation Boosting the Kinetics and Stability of Hydrated Vanadate Cathodes for Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(31)

Опубликована: Июнь 28, 2023

Abstract For the development of aqueous zinc‐ion batteries, exploiting vanadium‐based cathode materials with quick kinetics and acceptable cycling stability is crucial. Herein, to achieve these goals, transition metal ions (Zn 2+ ) organic (C 5 H 14 ON + Ch are introduced into layered hydrated V 2 O . The intrinsic high conductivity oxygen vacancies generated through ion pre‐intercalation accelerate electrical mobility by optimizing electronic structure. Zn stabilizes structure expanded interlayer spacing improves ionic diffusivity. synergistic effect pre‐intercalated results in 0.1 , )V 4.92 ·0.56H exhibiting a discharge capacity 473 mAh g −1 at A energy efficiency 88% excellent 91% retention after 2000 cycles 4 Ex situ characterizations density functional theory calculations reveal reversible intercalation mechanism improved electrochemical attributed altered reduced binding between host 2−

Язык: Английский

---

Optimization strategies toward advanced aqueous zinc-ion batteries: From facing key issues to viable solutions

Nano Energy, Год журнала: 2023, Номер 116, С. 108858 - 108858

Опубликована: Сен. 2, 2023

Язык: Английский

---

Review of vanadium-based oxide cathodes as aqueous zinc-ion batteries

Rare Metals, Год журнала: 2023, Номер 42(9), С. 2868 - 2905

Опубликована: Июль 30, 2023

Язык: Английский

---

Improved Strategies for Separators in Zinc‐Ion Batteries

ChemSusChem, Год журнала: 2023, Номер 16(8)

Опубликована: Март 3, 2023

The demand for energy storage is growing, and the disadvantages of lithium-ion batteries are being explored to overcome them. Accordingly, aqueous zinc-ion (ZIBs) developing very rapidly, owing their high safety, environmental friendliness, abundance resources, cost performance. Over last decade, ZIBs have made remarkable progress through extensive efforts in field electrode materials fundamental understanding non-electrode components, such as solid-electrolyte interphase, electrolytes, separators, binders, current collectors. In particular, breakthrough using separators on elements should not be overlooked proven key conferring with power density. this Review, recent development comprehensively summarized based functions roles ZIBs, including modification conventional novel separators. Finally, prospects future challenges also discussed facilitate development.

Язык: Английский

---

Ultrafast 3D Hybrid‐Ion Transport in Porous V₂O₅ Cathodes for Superior‐Rate Rechargeable Aqueous Zinc Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(18)

Опубликована: Март 22, 2023

Abstract Layered V 2 O 5 is a star cathode material of rechargeable aqueous zinc‐based batteries (RAZBs) owing to the rich redox chemistry vanadium, which commonly exhibits 2D ion‐diffusion mechanism through Zn 2+ (de)intercalation at edge sites but plagued by inert basal planes. Here, hierarchically porous nanosheets vertically grown on carbon cloth (V /C) are innovatively prepared, where structure with lattice defects successfully unlocks plane provide additional channels and abundant active sites. Thus, highly efficient ultrafast 3D Li + /Zn co‐insertion/extraction behaviors along both c ‐axis ab realized for first time in formulated 15 m LiTFSI 1 Zn(CF 3 SO ) electrolyte, as elucidated systematic ex situ analyses, multiple electrochemical measurements, theoretical computations. As result, /C electrode delivers an exceptional high‐rate capability (up 100 A g −1 ultralong cycling durability (15 000 cycles) RAZBs. Finally, quasi‐solid‐state wearable zinc employing demonstrate respectable performance even under severe deformations low temperatures. This work achieves conceptual breakthrough represented upgrading traditional ion transportation layered cathodes more facile diffusion designing high‐performance battery electrochemistry.

Язык: Английский

---

Advances and Perspectives of Ion‐Intercalated Vanadium Oxide Cathodes for High‐Performance Aqueous Zinc Ion Battery

Advanced Functional Materials, Год журнала: 2023, Номер 34(11)

Опубликована: Ноя. 29, 2023

Abstract Rechargeable aqueous zinc‐ion batteries (AZIBs) are recognized as one of the most competitive next generation energy storage systems due to high theoretical capacity (820 mAh g −1 ), abundant reserves, low expense, and environmental friendliness. However, in comparison that monovalent ion secondary battery, multivalent rechargeable battery faces larger metal sizes higher charge/discharge number electrochemical reaction process, thereby suffering from steric resistance electrostatic repulsion intercalation–deintercalation process. At present, a great deal research has shown guest pre‐embedded host structured cathodes can effectively alleviate above problems improve comprehensive performance zinc battery. In this review, development vanadium oxide ion‐intercalated cathode materials AZIBs is reviewed, mainly including M X V 2 O 5 ∙nH O, 3 8 6 13 16 10 25 type materials. The mechanisms these described, future directions prospected. It expected provide fundamental engineering guidance for

Язык: Английский

---

Sodium‐Ion and Polyaniline Co‐Intercalation into Ammonium Vanadate Nanoarrays Induced Enlarged Interlayer Spacing as High‐Capacity and Stable Cathodes for Flexible Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 33(48)

Опубликована: Июль 12, 2023

Abstract Vanadate oxides with low price and high theoretical capacity are competitive cathodes for aqueous zinc‐ion batteries (AZIBs). However, the existing problems such as sluggish Zn 2+ ion mobility, weak conductivity, complicated flexible electrode preparation hinder development of their practical applications in AZIBs (FAZIBs). Herein, sodium‐ion polyaniline co‐inserted into ammonium vanadate (NaNVO‐PANI) nanoarrays, which can serve novel freestanding FAZIBs. By virtue synergistic pillar effect sodium ions polyaniline, interplanar spacing NaNVO‐PANI expands to ≈13.8 Å. Both experimental data calculation confirm that optimal boost enhance electronic conductivity reduce diffusion barrier. As expected, resulting coin‐type exhibit 610.7 mAh g −1 at 0.5 A remarkable retention 98% after 5000 cycles 5 . More encouragingly, quasi‐solid‐state FAZIBs sandwich structure assembled, achieving impressive energy density 345.59 Wh kg a power 380.46 W This study is great significance developing high‐performance vanadium‐based wearable

Язык: Английский

---

Toward Low‐Temperature Zinc‐Ion Batteries: Strategy, Progress, and Prospect in Vanadium‐Based Cathodes

Advanced Energy Materials, Год журнала: 2023, Номер 14(8)

Опубликована: Дек. 28, 2023

Abstract Low‐temperature vanadium‐based zinc ion batteries (LT‐VZIBs) have attracted much attention in recent years due to their excellent theoretical specific capacities, low cost, and electrochemical structural stability. However, working temperature surrounding often results retarded transport not only the frozen aqueous electrolyte, but also at/across cathode/electrolyte interface inside cathode interior, significantly limiting performance of LT‐VZIBs for practical applications. In this review, a variety strategies solve these issues, mainly including interface/bulk structure engineering electrolyte optimizations, are categorially discussed systematically summarized from design principles in‐depth characterizations mechanisms. end, several issues about future research directions advancements characterization tools prospected, aiming facilitate scientific commercial development LT‐VZIBs.

Язык: Английский

---

Defect Engineering in Nanocatalysts: From Design and Synthesis to Applications

Advanced Functional Materials, Год журнала: 2024, Номер 34(29)

Опубликована: Фев. 13, 2024

Abstract Defect engineering is an emerging technology for tailoring nanomaterials' characteristics and catalytic performance in various applications. Recently, defect‐engineered nanoparticles have emerged as highly researched materials applications because of their exceptional redox reaction capabilities physicochemical optical properties. The properties nanomaterials can be readily adjusted by controlling the nature concentration defects within nanoparticles, avoiding need intricate design strategies. This review investigates defect nanocatalysts, including design, fabrication, Initially, categories strategies nanomaterial impacts on nanocatalysts' electronic surface properties, activity, selectivity, stability are summarized. Then, processes uses, gas sensing, hydrogen (H 2 ) evolutions, water splitting, reductions carbon dioxide (CO nitrogen to value‐aided products, pollutant degradation, biomedical (oncotherapy, antibacterial wound healing, biomolecular sensing) discussed. Finally, limitations prospective paths allowing logical optimization nanocatalytic long‐term efficient also examined. comprehensive gives unique insights into current state nanocatalysts inspires future research exploiting shortcomings improve customize performance.

Язык: Английский

---

Synergetic impact of oxygen and vanadium defects endows NH4V4O10 cathode with superior performances for aqueous zinc-ion battery

Energy storage materials, Год журнала: 2023, Номер 65, С. 103108 - 103108

Опубликована: Дек. 11, 2023

Язык: Английский

---