{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["17(1)"],"submitter":["Duan Y"],"pubmed_abstract":["Aqueous Ni-Zn microbatteries are safe, reliable and inexpensive but notoriously suffer from inadequate energy and power densities. Herein, we present a novel mechanism of superoxide-activated Ni substrate that realizes the redox reaction featuring three-electron transfers (Ni ↔ Ni<sup>3+</sup>). The superoxide activates the direct redox reaction between Ni substrate and KNiO<sub>2</sub> by lowering the reaction Gibbs free energy, supported by in-situ Raman and density functional theory simulations. The prepared chronopotentiostatic superoxidation-activated Ni (CPS-Ni) electrodes exhibit an ultrahigh capacity of 3.21 mAh cm<sup>-2</sup> at the current density of 5 mA cm<sup>-2</sup>, nearly 8 times that of traditional one-electron processes electrodes. Even under the ultrahigh 200 mA cm<sup"],"journal":["Nano-micro letters"],"pagination":["79"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11607291"],"repository":["biostudies-literature"],"pubmed_title":["Ultrahigh Energy and Power Density in Ni-Zn Aqueous Battery via Superoxide-Activated Three-Electron Transfer."],"pmcid":["PMC11607291"],"pubmed_authors":["Peng X","Yang K","Ho D","Li B","He L","Gong Z","Duan Y"],"additional_accession":[]},"is_claimable":false,"name":"Ultrahigh Energy and Power Density in Ni-Zn Aqueous Battery via Superoxide-Activated Three-Electron Transfer.","description":"Aqueous Ni-Zn microbatteries are safe, reliable and inexpensive but notoriously suffer from inadequate energy and power densities. Herein, we present a novel mechanism of superoxide-activated Ni substrate that realizes the redox reaction featuring three-electron transfers (Ni ↔ Ni<sup>3+</sup>). The superoxide activates the direct redox reaction between Ni substrate and KNiO<sub>2</sub> by lowering the reaction Gibbs free energy, supported by in-situ Raman and density functional theory simulations. The prepared chronopotentiostatic superoxidation-activated Ni (CPS-Ni) electrodes exhibit an ultrahigh capacity of 3.21 mAh cm<sup>-2</sup> at the current density of 5 mA cm<sup>-2</sup>, nearly 8 times that of traditional one-electron processes electrodes. Even under the ultrahigh 200 mA cm<sup","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Nov","modification":"2026-03-17T16:15:19.045Z","creation":"2025-04-07T02:59:29.459Z"},"accession":"S-EPMC11607291","cross_references":{"pubmed":["39612109"],"doi":["10.1007/s40820-024-01586-z"]}}