Vacancy-rich Al-doped MnO2 cathodes break the trade-off between kinetics and stability for high-performance aqueous Zn-ion batteries

A novel vacancy-rich, Al-doped MnO 2 cathode is proposed for AZIBs, showcasing 3D ion diffusion channels and excellent structural stability. It overcomes the trade-off between electrode kinetics and stability, delivering impressive rate performance and outstanding capacity retention.