FIELD: electricity.
SUBSTANCE: material of a positive electrode for an electric device is represented with the following formula: aLi[L1/3Mn2/3]O2×(1-a)Li[NixCoyMn1-x-y]O2 (where 0<a<1, 0<x<0.5 and 0<y<0.3) and meets the expression of the ratio 2x+y<1.
EFFECT: invention makes it possible to create a material of a positive electrode for an electric device, which has high capacitance and increased initial efficiency of charging-discharging.
6 cl, 7 dwg
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