Realizing a single-phase reaction and K+/vacancy disordering in P2-K0.56Na0.11Li0.12Ni0.22Mn0.66O2 by lithium substitution for potassium-ion batteries

Through the electrochemical ion-exchange method, P2-K 0.56 Na 0.11 Li 0.12 Ni 0.22 Mn 0.66 O 2 was successfully synthesized as a high-performance cathode with a single-phase reaction and K + /vacancy disordering for potassium-ion batteries.