Lithium rechargeable electrode for electrochemical generator

Details Lithium rechargeable electrode for electrochemical generator Lithium rechargeable electrode for electrochemical generator

H - Electricity

01

M

H01M 4/24 (2006.01) H01M 4/48 (2006.01)

Patent

CA 2228671

The invention discloses a lithium rechargeable positive electrode for electrochemical generator containing an electrochemically active material of general formula: Li¿x? M¿y? A¿m? D¿z? O¿t? with: 0,8 ? x ? 1.2; 0 < z ? 0.3; 1.8 ? t ? 4.2; (0.8 - m - z) ? y ? (2.2 - m - z); 0 < m ? 0.3 where M is at least one transition metal selected among nickel, cobalt, manganese and iron, A is an element selected between magnesium and calcium, and D, different from M, is at least one element selected among the elements of groups 4b to 5a of the periodic system.

La présente invention a pour objet une électrode positive de générateur électrochimique rechargeable au lithium contenant un matériau électrochimiquement actif de formule générale: Lix My Am Dz Ot avec: 0,8 x 1,2; 0 < z 0,3; 1,8 t 4,2; (0,8 - m - z) y (2,2 - m - z); 0 < m 0,3; où M est au moins un métal de transition choisi parmi le nickel, le cobalt, le manganèse et le fer, A est un élément choisi parmi le magnésium et le calcium, et D, différent de M, est au moins un élément choisi parmi les éléments des groupes 4b à 5a de la classification périodique.

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