| 摘要 |
A layered oxide material, a preparation method, an electrode, a secondary battery and use are disclosed. The layered oxide material has a general chemical formula NaxCuiFejMnkMyO2+β, in which M is an element that is doped for replacing the transition metals; x, y, i, j, k, and β are respectively the molar ratios of respective elements, provided that x, y, i, j, k, and β satisfy the relations: y+i++j+k=1, and x+my+2i+3j+4k=2(2+β), where 0.8≦x≦1, 0<i≦0.3, 0<j≦0.5, 0<k≦0.5, 0.02≦β≦0.02, and m is the valence of M. The layered oxide material has a space group of R3m. |
| 主权项 |
1. A layered oxide material having a general chemical formula NaxCuiFejMnkMyO2+β:
wherein M is an element that is doped for replacing the transition metals, and is specifically one or more of Li+, Ni2+, Mg2+, Mn2+, Zn2+, Co2+, Ca2+, Ba2+, Sr2+, Mn3+, Al3+, B3+, Cr3+, Co3+, V3+, Zr4+, Ti4+, Sn4+, V4+, Mo4+, Mo5+, Ru4+, Nb5+, Si4+, Sb5+, Nb5+, Mo6+, and Te6+; and x, y, i, j, k, and β are respectively the molar ratios of respective elements, provided that x, y, i, j, k, and β satisfy the relations: y+i+j+k=1, and x+my+2i+3j+4k=2(2+β), wherein 0.8≦x≦1; 0<i<≦0.3, 0<j≦0.5, 0<k<0.5, −0.02≦β≦0.02, and m is the valence of M; and wherein the layered oxide material has a space group of R3m. |
