| 摘要 |
The positive electrode active material includes a compound represented by the following composition formula: [Li1.5][Li0.5(1-x)Mn1-xM1.5x]O3 (wherein x satisfies 0.1@x@0.5, and M is represented by NialphaCobetaMngamma in which alpha, beta and gamma satisfy 0<alpha@0.5, 0@beta@0.33 and 0<gamma@0.5, respectively), wherein a half width of the peak of a (001) crystal plane of the compound measured by X-ray diffraction is in a range from 0.14 to 0.33 inclusive, and an average primary particle diameter of the compound is in a range from 0.03 mum to 0.4 mum inclusive. |
