Corrosion engineering towards a high-energy Mn doped Co3O4 nanoflake cathode for rechargeable Zn-based batteries

Abstract

Co₃O₄ for aqueous rechargeable Co–Zn batteries suffers from low capacity and poor cycling stability. Here, we propose a facile surface corrosion strategy to synthesize Mn-doped Co₃O₄ (MCO) nanoflakes. Due to the promoted charge and ion transfer ability and increased active sites, MCO shows enhanced capacity and cycling performance.