Patent ID: 11955624
Assignee: SAFT AMERICA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A positive electrode material for use in a secondary battery, the positive electrode material comprising a layer obtained by blending:
(1) a first active material consisting of a lithium vanadium fluorophosphate represented by following the Formula (1) and/or a lithium vanadium fluorophosphate derivative represented by the following Formula (2); with
(2) a second active material consisting of the following Formula (A4) and/or the following Formula (B1),
wherein a weight ratio of the first active material to the second active material is r:(1−r), wherein 0.4≤r≤0.9, and
wherein either the Formula (A4) is at least 10% by weight of a total of the first active material and the second active material or the Formula (B1) is at least 10% by weight of the total of the first active material and the second active material;

Li1+xVPO4F  Formula (1),

wherein, in Formula (1), 0≤x≤0.15,

Li1+xV1−yMyPO4Fz  Formula (2),

wherein, in Formula (2), 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

Li1+xFeyMnzXbPO4  Formula (A4)

wherein, in 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,

Liw(NixMnyCozMt)O2  Formula (B1),

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.