Patent ID: 7799459

Claim:
Compound comprising: a) a spinel-type crystalline phase of formula Li a Ni II 0.5−x Mn III 2x Mn IV 1.5−x−y M y O 4 in which M is chosen from the group comprising the elements Ti and Al, or a mixture of these; 0.8<a<1.3; 0<x≦0.15; 0≦y≦0.15; b) a cubic crystalline phase of formula Li 1−t Ni 1+t O in which 0≦t≦1, the molar percentage of which is 2 to 10%; and c) a rhomboedric crystalline phase of formula Li 1−z Ni 1+z O 2 in which 0≦z≦1, the molar percentage of which is 1 to 15%.