Inorganic–Organic Co‐Intercalated [Al_0.16(C₅H₁₄ON)_0.12]V₂O₅·0.39H₂O Cathode for High‐Performance Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Abstract Vanadium oxides hold great promise for aqueous zinc‐ion batteries (AZIBs) due to their multiple oxidation states, diverse crystalline structures, and high vanadium abundance. However, applications are limited by narrow interlayer spacing, poor reversibility, solubility. To address these issues, an inorganic–organic co‐intercalated [Al 0.16 (C 5 H 14 ON) 0.12 ]V 2 O ·0.39H cathode (IO‐V ) is reported with enlarged spacing (13.7 Å) enhanced structure stability better AZIBs. Serving as structural pillars, Al 3+ , betaine create a fast 2D channel Zn 2+ transport. The positively charged quaternary ammonium groups in strongly interact the lattice oxygen of V further stabilizing layered structure. polar carboxylic acid weaken interaction between V─O bonds thus improve diffusion kinetics lowered energy barriers. Consequently, IO‐V delivers specific capacity (549.5 mAh g −1 at 0.2 A ), ion rate (10 −8 ∼10 −7 cm s superior cycle life (80.1% retention after 20,000 cycles 30 ultrahigh density (416.3 Wh kg becoming state‐of‐the‐art systems comprehensive metrics. This study provides promising direction design vanadium‐based materials advanced

Язык: Английский

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‘Everything’ in Aqueous Zinc-ion Batteries can may be Prussian blue analogues: From cathode materials to electrolyte additives applications

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104299 - 104299

Опубликована: Май 1, 2025

Язык: Английский

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Morphology regulation and vacancy engineering for vanadium oxide cathodes via tungsten doping towards advanced zinc-ion batteries

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 696, С. 137888 - 137888

Опубликована: Май 15, 2025

Recently, vanadium oxide of V6O13 has emerged as a promising cathode material for aqueous zinc-ion batteries (AZIBs) due to its high theoretical specific capacity, abundant reserves, and the multiple adjustable oxidation states vanadium. However, poor electronic conductivity severe structural collapse during cycling limit practical application. Herein, W6+-doped nanobelt was synthesized via one-step solvothermal method. W6+ doping regulates morphology from irregular nanosheets into nanobelts, increasing surface area improving contact with electrolyte. Furthermore, W6+-doping induces more oxygen vacancies activated active sites, facilitating rapid diffusion Zn2+. As result, WVO delivers capacity 472.6 mAh g-1 at 0.5 A 266.4 10 g-1, outstanding retention 82.4 % after 3,000 cycles g-1. This work provides valuable insights design advanced cathodes.

Язык: Английский

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Carbonized wood fibers coupled with carbon-coated manganese oxide for high performance aqueous zinc ion batteries

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 137250 - 137250

Опубликована: Май 1, 2025

Язык: Английский

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