Enhanced electrochemical performance of aqueous Zn-ion batteries based on Na <sub>2</sub> V <sub>6</sub> O <sub>16</sub> ·2H <sub>2</sub> O cathodes: insights from DFT and synchrotron X-ray analysis
Younghee So, Huncheol Seo, Seung Hwan Lee, Eunseo Lee, Jinyoung Lee, Joonhee Kang, Young Yong Kim, Byung‐Hyun Kim, Sungwook Mhin
Abstract
A Na 2 V 6 O 16 ·2H 2 O cathode, synthesized via Na pre-intercalation using a sonochemical method, enhances Zn-ion storage by improving structural stability. The NaVO//Zn battery delivers 126 mA h g −1 and retains 91.8% of its capacity after 10 000 cycles.
Topics & Concepts
SynchrotronElectrochemistryCathodeAqueous solutionIonMaterials scienceX-rayChemistryPhysical chemistryPhysicsElectrodeNuclear physicsOrganic chemistryAdvanced battery technologies researchCopper-based nanomaterials and applicationsElectrochemical Analysis and Applications