Electrochemical features of LiNi0.33+δMn0.33+δCo0.33-2δO2 (0≤δ≤0.075) cathode materials for Li-ion batteries

K. Ben Kamel (1) , N. Amdouni (1) , J. Trottier (2) , K. Zaghib (2) , A. Mauger (3) , H. Groult (4) , C.M. Julien (4)

1 UTM - Université de Tunis El Manar
2 IREQ - Institut de Recherche d'Hydro-Québec [Varennes]
3 IMPMC - Institut de minéralogie et de physique des milieux condensés
4 PECSA - Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques

Electrochemical features of LiNi0.33+δMn0.33+δCo0.33-2δO2 (0≤δ≤0.075) oxides (LNMCOs) have been studied as a function of the composition. The cation mixing was characterized by a set of methods including Rietveld refinement of XRD patterns and magnetic experiments. It is observed that the decreasing amount of cobalt favouring the presence of Ni2+ ions in the Li(3b) site affects the electrochemical performance of lithium cells.

Domaines: Physique Quantique [quant-ph]

K. Ben Kamel, N. Amdouni, J. Trottier, K. Zaghib, A. Mauger, et al.. Electrochemical features of LiNi0.33+δMn0.33+δCo0.33-2δO2 (0≤δ≤0.075) cathode materials for Li-ion batteries. ECS Transactions, 2011, sous-presse. ⟨hal-00616785⟩