| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a lithium-containing compound oxide that has a stable structure, is excellent in reversibility of charging/discharging and durability during charge/discharge cycles, and has high energy density per volume; a method for producing the same; and a non-aqueous secondary battery using the lithium-containing compound oxide. <P>SOLUTION: The lithium-containing compound oxide has a layered crystal structure and a composition represented by general formula: Li<SB>1+x+α</SB>Ni<SB>(1-x-y+δ)/2</SB>Mn<SB>(1-x-y-δ)/2</SB>M<SB>y</SB>O<SB>2</SB>(wherein, 0≤x≤0.05; -0.05≤x+α≤0.05, 0<y≤0.4; -0.1≤δ≤0.1; and M is at least one element selected from the group consisting of Ti, Cr, Fe, Co, Cu, Zn, Al, Ge and Sn). In the lithium-containing compound oxide, the average valence number of Mn is 3.3-4. <P>COPYRIGHT: (C)2008,JPO&INPIT |
