| 摘要 |
A composition of active material for a positive electrode of a lithium-ion electrochemical generator, comprising: - a lithiated oxide of formula Li1+xMO2 in which: 0≤x≤0.15, M designates NiaMnbCocM'd where a>0; b>0; c>0; d≥0 and a+b+c+d=1; M' being chosen from B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Cu, Zn, Y, Zr, Nb, Mo or a mixture thereof; - a lithiated phosphate of formula LiMn1-yM"yPO4 where M" represents at least one element chosen from the group consisting of Fe, Ni, Co, Mg and Zn; and 0<y<0.5; the particle size distribution of the lithiated oxide being characterised by a first volume median diameter of the particles Dv50 1 ≥ 500 nm; the particle size distribution of the lithiated phosphate being characterised by a second volume median diameter of the particles Dv50 2 ≥ 500 nm; and Dv50 2 / Dv50 1 ≥ 1.5. |
