Haolv Hu, Hung-Chieh He, Chen Cheng, Tianran Yan, Xiao Xia, Chi Chen, Dan Sun, Ting-Shan Chan, Jinpeng Wu,* Liang Zhang*, Achieving reversible Mn2+/Mn4+ double redox couple through anionic substitution in a P2-type layered oxide cathode, 2022, Nano Energy, accepted.