Study of the local structure of LiNixMnyCoxO2 cathode materials

K. Ben Kamel (1) , G. Ben Amor (1) , N. Amdouni (1) , A. Mauger (2) , C.M. Julien (3)

1 UTM - Université de Tunis El Manar
2 IMPMC - Institut de minéralogie et de physique des milieux condensés
3 PECSA - Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques

Structural features of LiNixMnyCoxO2 oxides (LNMCOs) have been studied as a function of the synthetic procedure and the composition. Materials were characterized by a set of methods including XRD, SEM, TEM, EDAX, BET, 7Li MAS-NMR and Raman experiments. TEM experiments show that the increase of cobalt content induces a change of particles morphology, form octahedron to spherical like shape with size range 200-350 nm. HRTEM image shows layered structure without dislocations.

Domaines: Physique Générale [physics.gen-ph]; Physique Quantique [quant-ph]

K. Ben Kamel, G. Ben Amor, N. Amdouni, A. Mauger, C.M. Julien. Study of the local structure of LiNixMnyCoxO2 cathode materials. ECS Transactions, 2010, sous presse. ⟨hal-00517053⟩