A high performance MBene substrate for improving the MnO2 cathodes for aqueous Zn-ion batteries†

Abstract

Slow kinetics and instability seriously hinder the development of MnO₂ cathodes for aqueous Zn-ion batteries. Herein, an emerging 2D material MoB-based MBene was used as the MnO₂ matrix. Benefiting from the high electrical conductivity and outstanding stability of MoB, the prepared MoB/MnO₂ composite cathode effectively alleviated the above issues and showed significant electrochemical performance improvement.