5v class spinel-type lithium manganese-containing complex oxide

It is possible to achieve both the expansion and inhibition of gas generation of the high potential capacity range, provide new 5V-class spinel-type lithium manganese-containing complex oxide. Li, and a Mn and O and two or more elements other than these, a spinel-type lithium manganese-containing complex oxides having an operating potential of 4.5V or more on the metal Li reference potential, powder using CuKα1 line in X-ray diffraction pattern measured by X-ray diffractometer (XRD), 2 [Theta] proposes a spinel-type lithium manganese-containing complex oxide, characterized in that there is a peak between 14.0 to 16.5 ° .