biostudies-literatureDu MFundamental Research Fund of Shandong UniversityNatural Science Foundation of Shandong ProvinceNational Natural Science Foundation of China2000083https://www.ebi.ac.uk/biostudies/studies/S-EPMC7341090biostudies-literatureUnknown7(13)Rechargeable aqueous zinc-ion batteries (ZIBs) show promise for use in energy storage. However, the development of ZIBs has been plagued by the limited cathode candidates, which usually show low capacity or poor cycling performance. Here, a reversible Zn//(Na,Mn)V₈O₂₀·<i>n</i>H₂O system is reported, the introduction of manganese (Mn) ions in NaV₈O₂₀ to form (Na,Mn)V₈O₂₀ exhibits an outstanding electrochemical performance with a capacity of 377 mA h g^-1 at a current density of 0.1 A g^-1. Through experimental and theoretical results, it is discovered that the outstanding performance of (Na,Mn)V₈O₂₀·<i>n</i>H₂O is ascribed to the Mn²⁺/Mn³⁺-iAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Tunable Layered (Na,Mn)V₈O₂₀·<i>n</i>H₂O Cathode Material for High-Performance Aqueous Zinc Ion Batteries.PMC7341090ZR2018BEM0102018WLJH645173200751902187Liu HZhang FDong WGuo YGWang SZhang XLiu CSang YWang JJDu MfalseTunable Layered (Na,Mn)V₈O₂₀·<i>n</i>H₂O Cathode Material for High-Performance Aqueous Zinc Ion Batteries.Rechargeable aqueous zinc-ion batteries (ZIBs) show promise for use in energy storage. However, the development of ZIBs has been plagued by the limited cathode candidates, which usually show low capacity or poor cycling performance. Here, a reversible Zn//(Na,Mn)V₈O₂₀·<i>n</i>H₂O system is reported, the introduction of manganese (Mn) ions in NaV₈O₂₀ to form (Na,Mn)V₈O₂₀ exhibits an outstanding electrochemical performance with a capacity of 377 mA h g^-1 at a current density of 0.1 A g^-1. Through experimental and theoretical results, it is discovered that the outstanding performance of (Na,Mn)V₈O₂₀·<i>n</i>H₂O is ascribed to the Mn²⁺/Mn³⁺-i2020-01-01T00:00:00Z2020 Jul2025-04-19T18:01:44.186Z2025-04-19T18:01:44.186ZS-EPMC73410903267075710.1002/advs.202000083