Publication number: 20240194867
Abstract: The present application provides a positive electrode active material and the preparation thereof, a secondary battery, a battery module, a battery pack, and electrical device. The positive electrode active material of the present application comprises a layered sodium composite oxide containing antimony having a chemical formula of Formula I, NaxMnaFebNicSbdLeO2 (I), in which 0.7<x?1, 0<a, 0?b, 0.1<c?0.3, 0<d?0.1, 0?e, a+b+c+d+e=1, (b+c)/(a+d+e)?1, and L is one or more selected from Cu, Li, Ti, Zr, K, Nb, Mg, Ca, Mo, Zn, Cr, W, Bi, Sn, Ge, Al, Si, La, Ta, P, and B. The layered sodium composite oxide containing antimony of the present application, by being doped with specific metal Sb, has high stability to water.
Type:
Application
Filed:
January 12, 2024
Publication date:
June 13, 2024
Inventors:
Zibin Liang, Yuhao Wang, Wenguang Lin, Xinxin Zhang, Jinhua He