Dual engineering of electronic structure and interface: A synergistic Co-doped δ-MnO2/MXene cathode for Zn-ion batteries with ultrahigh capacity and cycling stability

Key Points

• Enhanced capacity and cycling stability were achieved with the co-doped cathode.
• The cathode design provides an impressive energy density of over 400 mAh/g.
• Analysis of electronic structure and interface reveals synergistic effects from co-doping.
• Implications suggest potential for improved performance in zinc-ion battery technologies.