NH₄⁺-Modulated Cathodic Interfacial Spatial Charge Redistribution for High-Performance Dual-Ion Capacitors.

ABSTRACT: Compared with Zn²⁺, the current mainly reported charge carrier for zinc hybrid capacitors, small-hydrated-sized and light-weight NH₄⁺ is expected as a better one to mediate cathodic interfacial electrochemical behaviors, yet has not been unraveled. Here we propose an NH₄⁺-modulated cationic solvation strategy to optimize cathodic spatial charge distribution and achieve dynamic Zn²⁺/NH₄⁺ co-storage for boosting Zinc hybrid capacitors. Owing to the hierarchical cationic solvated structure in hybrid Zn(CF₃SO₃)₂-NH₄CF₃SO₃ electrolyte, high-reactive Zn²⁺ and small-hydrate-sized NH₄(H₂O)₄⁺

SUBMITTER: Chen Y 

PROVIDER: S-EPMC11772636 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature