Samanta, Prakas Ghosh, Souvik Jang, Wooree Yang, Cheol-Min Murmu, Naresh Chandra Kuila, Tapas 2024-01-19T14:00:13Z 2024-01-19T14:00:13Z 2022-01-10 2021-09-28 2574-0962 https://pubs.kist.re.kr/handle/201004/116454 Rechargeable aqueous Zn-ion batteries (ZiBs) have received significant attention owing to their low cost and environmental friendliness. The charge storage mechanism of ZiBs generally depends on the cationic redox conversion. The anodic redox conversion is still rare due to the lack of suitable cathode materials and electrolytes, which may impede the ZiB performance. The present investigation focuses on enhancing the ZiB performance through in situ involvement of disulfide redox chemistry from a patronite Mndoped VS4 crystal in a 1 M Zn(OTf)(2) water/acetonitrile (ACN) hybrid electrolyte. Simultaneous involvement of cationic and anionic redox conversion during the charging/discharging process enhances the specific capacity as high as similar to 547 mA h g(-1) at 0.2 A g(-1) current density. The water/ACN hybrid solvent effectively improves the working voltage and suppresses Zn dendrite formation, resulting in superior cycling performance. The conversion of the VS4 crystal phase and intercalation of H+/Zn2+ in the cathode have been investigated through ex situ X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman studies. English AMER CHEMICAL SOC VOOH VS4 ACETONITRILE/WATER CHALLENGES CAPACITY A Reversible Anodizing Strategy in a Hybrid Electrolyte Zn-Ion Battery through Structural Modification of a Vanadium Sulfide Cathode Article 10.1021/acsaem.1c01676 1 ACS APPLIED ENERGY MATERIALS, v.4, no.10, pp.10656 - 10667 ACS APPLIED ENERGY MATERIALS 4 10 10656 10667 scie scopus 000711236300026 2-s2.0-85116679319 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article VOOH VS4 ACETONITRILE/WATER CHALLENGES CAPACITY VS4 electrolyte anodic oxidation Zn-ion battery charge storage mechanism