Improved electrochemical performance of Li(Ni0.6Co0.2Mn0.2)O2 at high charging cut-off voltage with Li1.4Al0.4Ti1.6(PO4)3 surface coating

Improved electrochemical performance of Li(Ni_0.6Co_0.2Mn_0.2)O₂ at high charging cut-off voltage with Li_1.4Al_0.4Ti_1.6(PO₄)₃ surface coating

Wang Yi^{1, 2}, Liu Bo-Nan³, Zhou Ge^{1, 2}, Nie Kai-Hui^{1, 2}, Zhang Jie-Nan^{1, ‡}, Yu Xi-Qian^{1, 2, †}, Li Hong^{1, 2, 3}

(a) The initial charge and discharge curves for bare and LATP modified NCM622 cathodes cycled in the voltage range of 2.8 V–4.5 V. Cycle performance in the voltage range of (b) 2.8 V–4.3 V and (c) 2.8–4.5 V for bare and LATP modified NCM622 cathodes. All cells were cycled at 1 C rate (1 C = 190 mA/g).