| 摘要 |
A composite positive electrode active material for a lithium secondary battery including a compound represented by Formula 1 below and a compound represented by Formula 2 below, and a lithium secondary battery employing a positive electrode that includes the composite positive electrode active material:;Formula 1 ;LiaNixCoyMnzM1-x-y-zO2 ;wherein, in Formula 1, ranges of M, a, x, and y are as defined in the detailed description above, and;Formula 2 ;M1z[M2(CN)6]x·nH2O;wherein, in Formula 2, M1, M2, z, x, and n are as defined in the detailed description above. |
| 主权项 |
1. A composite positive electrode active material for a lithium secondary battery comprising a compound represented by Formula 1 below and a compound represented by Formula 2 below:
LiaNixCoyMnzM1-x-y-zO2 Formula 1 wherein, in Formula 1, M is selected from boron (B), magnesium (Mg), aluminum (Al), chrome (Cr), vanadium (V), titanium (Ti), iron (Fe), zirconium (Zr), zinc (Zn), silicon (Si), yttrium (Y), niobium (Nb), gallium (Ga), tin (Sn), molybdenum (Mo), and tungsten (W), and a, x, y, and z satisfy the equations of 1.0≦a≦1.2, 0.0≦x<1.0, 0.1<y≦1.0, 0.0≦z≦1.0, and 0.0≦1-x-y-z≦0.3,
M1z[M2(CN)6]x.nH2O Formula 2 wherein, in Formula 2, M1 and M2 are each independently at least one selected from vanadium (V), manganese (Mn), cobalt (Co), nickel (Ni), and copper (Cu), z is in the range of about 2 to about 4, x is in the range of about 1 to about 5, and n is 0 or in the range of about 1 to about 10. |
