A positive electrode material for use in a secondary battery, the positive electrode material comprising: a first active material selected from the group consisting of a lithium vanadium fluorophosphate represented by following the Formula and a lithium vanadium fluorophosphate derivative represented by the following Formula : Li 1+x VPO 4 F Formula , wherein, in Formula , 0≤x≤0.15, Li 1+x V 1-y M y PO 4 F z Formula , wherein, in Formula , 0≤x≤0.15; 0<y≤0.5; 0.8≤z≤1.2; and M is one or more selected from the group consisting of Ti, Al, Mg, Mn, Fe, Co, Y, Cr, Cu, Ni, and Zr; and a second active material, wherein a weight ratio of the first active material to the second active material is r : (1-r), wherein 0.6≤r≤0.9; and the second active material is represented by: - the Formula (B1) or - the Formula (B3) or - a blend of the Formula (A4) with the Formula (B1) or - a blend of the Formula (A4) with the Formula (B3), Formula (B1) being Li w (Ni x Mn y Co z M t )O 2 , wherein, in Formula (B1), 0.9≤w≤1.1; x>0; y>0; z>0; t≥0; M is one or more selected from the group consisting of Al, B, Mg, Si, Ca, Ti, V, Cr, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, Sr, Ce, Ga, and Ta; and optionally x+y+z+t=1, Formula (B3) being Li w (Ni x Co y Al z M t )O 2 , wherein, in Formula (B3), 0.9≤w≤1.1; x>0; y>0; z>0; t≥0; M is one or more selected from the group consisting of B, Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, Sr, Ce, Ga, and Ta; and optionally x+y+z+t=1, Formula (A4) being Li 1+x Fe y Mn z X b PO 4 , wherein, in the Formula (A4), X is at least one transition metal selected from the group consisting of Ni, V, Y, Mg, Ca, Ba, Al, Sc, and Nd; 0≤x≤0.15; y>0; z>0; b≥0; and optionally y+z+b=1. a first active material selected from the group consisting of a lithium vanadium fluorophosphate represented by following the Formula and a lithium vanadium fluorophosphate derivative represented by the following Formula : Li 1+x VPO 4 F Formula , wherein, in Formula , 0≤x≤0.15, Li 1+x V 1-y M y PO 4 F z Formula , wherein, in Formula , 0≤x≤0.15; 0<y≤0.5; 0.8≤z≤1.2; and M is one or more selected from the group consisting of Ti, Al, Mg, Mn, Fe, Co, Y, Cr, Cu, Ni, and Zr; and a second active material, wherein a weight ratio of the first active material to the second active material is r : (1-r), wherein 0.6≤r≤0.9; and - the Formula (B1) or - the Formula (B3) or - a blend of the Formula (A4) with the Formula (B1) or - a blend of the Formula (A4) with the Formula (B3), Formula (B1) being Li w (Ni x Mn y Co z M t )O 2 , wherein, in Formula (B1), 0.9≤w≤1.1; x>0; y>0; z>0; t≥0; M is one or more selected from the group consisting of Al, B, Mg, Si, Ca, Ti, V, Cr, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, Sr, Ce, Ga, and Ta; and optionally x+y+z+t=1, Formula (B3) being Li w (Ni x Co y Al z M t )O 2 , wherein, in Formula (B3), 0.9≤w≤1.1; x>0; y>0; z>0; t≥0; M is one or more selected from the group consisting of B, Mg, Si, Ca, Ti, V, Cr, Mn, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, Sr, Ce, Ga, and Ta; and optionally x+y+z+t=1, Formula (A4) being Li 1+x Fe y Mn z X b PO 4 , wherein, in the Formula (A4), X is at least one transition metal selected from the group consisting of Ni, V, Y, Mg, Ca, Ba, Al, Sc, and Nd; 0≤x≤0.15; y>0; z>0; b≥0; and optionally y+z+b=1. <EOS>