Surface reconstruction via rapid solution quenching to enhance structural stability of lithium-rich layered cathodes
Authors: Hailiang Chu, Jiaxiao Meng, Longde Duan, Shujun Qiu, Errui Wang, Fen Xu, and Lixian Sun
Lithium-rich layered oxides are prospective materials for future-generation cathodes attributable to their high specific capacity. However, significant surface instability, particularly under high-voltage operating conditions, leads to substantial voltage decay and dramatic capacity degradation during long-term cycling, severely limiting their widespread application. In this study, we developed a universal brine quenching strategy to construct a stabilized composite surface structure for lithium