An electrode comprising: a) a current collector; b) a stack of at least two layers (1, 2, 3) disposed on at least one face of the current collector, in which: α) a first layer is in contact with the face of the current collector and comprises a mixture of at least two compounds chosen from: - a compound i) of formula Li x Mn 1-y-z M' y M" z PO 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; M' and M" being different from each other; and 0.8 ≤x≤ 1.2, 0 ≤y ≤0.6, 0 ≤z ≤0.2; - a compound ii) of formula Li x M 2-x-y-z-w M' y M" z M'" w O 2 where M, M', M" and M'" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo, provided that at least M or M' or M" or M'" is selected from Mn, Co, Ni, or Fe; M, M', M" and M'" being different from each other; and 0.8 ≤x≤ 1.4; 0 ≤y ≤0.5; 0 ≤z ≤0.5; 0 ≤w ≤0.2 and x + y + z + w <2; - a compound iii) of formula Li x Mn 2-y-z M' y M" z O 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr and Mo; M' and M" being different from each other; and 1 ≤x ≤ 1.4; 0≤y≤0.6; 0≤z≤0.2; said mixture including compound i); β) an outer layer comprises an active material comprising at least 90% of a compound of formula Li x Fe 1-y M y PO 4 in which M is selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; and 0.8 ≤x≤ 1.2; 0 ≤y ≤0.6. a) a current collector; b) a stack of at least two layers (1, 2, 3) disposed on at least one face of the current collector, in which: α) a first layer is in contact with the face of the current collector and comprises a mixture of at least two compounds chosen from: - a compound i) of formula Li x Mn 1-y-z M' y M" z PO 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; M' and M" being different from each other; and 0.8 ≤x≤ 1.2, 0 ≤y ≤0.6, 0 ≤z ≤0.2; - a compound ii) of formula Li x M 2-x-y-z-w M' y M" z M'" w O 2 where M, M', M" and M'" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo, provided that at least M or M' or M" or M'" is selected from Mn, Co, Ni, or Fe; M, M', M" and M'" being different from each other; and 0.8 ≤x≤ 1.4; 0 ≤y ≤0.5; 0 ≤z ≤0.5; 0 ≤w ≤0.2 and x + y + z + w <2; - a compound iii) of formula Li x Mn 2-y-z M' y M" z O 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr and Mo; M' and M" being different from each other; and 1 ≤x ≤ 1.4; 0≤y≤0.6; 0≤z≤0.2; said mixture including compound i); β) an outer layer comprises an active material comprising at least 90% of a compound of formula Li x Fe 1-y M y PO 4 in which M is selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; and 0.8 ≤x≤ 1.2; 0 ≤y ≤0.6. α) a first layer is in contact with the face of the current collector and comprises a mixture of at least two compounds chosen from: - a compound i) of formula Li x Mn 1-y-z M' y M" z PO 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; M' and M" being different from each other; and 0.8 ≤x≤ 1.2, 0 ≤y ≤0.6, 0 ≤z ≤0.2; - a compound ii) of formula Li x M 2-x-y-z-w M' y M" z M'" w O 2 where M, M', M" and M'" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo, provided that at least M or M' or M" or M'" is selected from Mn, Co, Ni, or Fe; M, M', M" and M'" being different from each other; and 0.8 ≤x≤ 1.4; 0 ≤y ≤0.5; 0 ≤z ≤0.5; 0 ≤w ≤0.2 and x + y + z + w <2; - a compound iii) of formula Li x Mn 2-y-z M' y M" z O 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr and Mo; M' and M" being different from each other; and 1 ≤x ≤ 1.4; 0≤y≤0.6; 0≤z≤0.2; said mixture including compound i); - a compound i) of formula Li x Mn 1-y-z M' y M" z PO 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; M' and M" being different from each other; and 0.8 ≤x≤ 1.2, 0 ≤y ≤0.6, 0 ≤z ≤0.2; - a compound ii) of formula Li x M 2-x-y-z-w M' y M" z M'" w O 2 where M, M', M" and M'" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo, provided that at least M or M' or M" or M'" is selected from Mn, Co, Ni, or Fe; M, M', M" and M'" being different from each other; and 0.8 ≤x≤ 1.4; 0 ≤y ≤0.5; 0 ≤z ≤0.5; 0 ≤w ≤0.2 and x + y + z + w <2; - a compound iii) of formula Li x Mn 2-y-z M' y M" z O 4 where M' and M" are selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Zr and Mo; M' and M" being different from each other; and 1 ≤x ≤ 1.4; 0≤y≤0.6; 0≤z≤0.2; β) an outer layer comprises an active material comprising at least 90% of a compound of formula Li x Fe 1-y M y PO 4 in which M is selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo; and 0.8 ≤x≤ 1.2; 0 ≤y ≤0.6.