ACTIVE CATHODE MATERIAL INCORPORATING ITS RECHARGE CHARACTERISTIC IMPROVING DOPE AND SECONDARY LITHIUM BATTERY USING SUCH MATERIAL Russian patent published in 2007 - IPC H01M4/50 H01M10/36 

FIELD: active cathode materials affording battery characteristics immune to adverse effect of recharge and secondary battery using it.

SUBSTANCE: proposed active cathode material used for secondary lithium cell has lithium-transition metal oxide capable of lithium ion intercalation/deintercalation; in addition this active cathode material has lithium-manganese oxide used as dope and characterized in higher irreversible capacitance than mentioned lithium-transition metal oxide; it has laminated structure illustrated by formula 1: LiM_xMn_{1 - x}O₂, where x is number satisfying 0.05 ≤ x < 0.5 and M is at least one metal chosen from group of Cr, Al, Ni, Mn, and Co.

EFFECT: improved recharge characteristics.

7 cl, 10 dwg, 5 ex