| 摘要 |
PROBLEM TO BE SOLVED: To provide manganese oxide which makes high energy density compatible with a low cost and is a new cathode material for manganese-based lithium secondary batteries, and to provide the lithium secondary battery which is obtained by using the manganese oxide in a cathode and has high energy density.SOLUTION: The manganese oxide is shown by a general formula: LiMnMO(in which 0<X≤4/3 and 0≤Z≤5/6 are satisfied. M is one or more elements selected from the elements other than Li, Mn, and O.) A production method of the manganese oxide comprises a step of electrochemically oxidizing a lithium-containing manganese composition shown by another general formula:LiMnMO(in which 0≤Z≤5/6 is satisfied. M is one or more elements selected from the elements other than Li, Mn, and O.). The lithium secondary battery includes the manganese oxide-containing cathode.SELECTED DRAWING: None |
