| 摘要 |
A cathode active material and non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery includes a positive electrode and a negative electrode which are electrochemically doped and dedoped with lithium; and an electrolyte disposed between the positive electrode and the negative electrode. The positive electrode contains a cathode active material including a mixture of: a first cathode active material represented by a general formula: Li<SUB>t</SUB>CoM<SUB>s</SUB>O<SUB>2 </SUB>where M represents a metal, 0<=s<=0.03, and 0.05<=t<=1.15; and a second cathode active material represented by a general formula: Li<SUB>x</SUB>Ni<SUB>(1-y-z)</SUB>Co<SUB>y</SUB>Mn<SUB>z</SUB>A<SUB>a</SUB>O<SUB>2 </SUB>where A represents a metal, 0.05<=x<=1.15, 0.15<=y+z<=0.70, 0.05<=z<=0.40, and 0<=a<=0.10. |
