Many strategies have been applied to improve the performance of MnO2/Zn batteries. For example, to slow down the manganese dissolution during electrochemical cycling, Liang et al. introduced potassium ions and oxygen defects in MnO2[62]. The incorporated K+ions can stabilize the Mn-based cathodes,...
The ever-growing pursuit of safer and more economical energy storage systems than lithium-ion batteries (LIBs) is a critical path toward a sustainable future [1,2,3,4]. As a promising alternative beyond LIBs, aqueous batteries have been considered the next-generation large-scale energy storage ...