| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide lithium manganate having high output and excellent high-temperature stability. <P>SOLUTION: Lithium manganate particle powder has a primary particle diameter of 1-8 μm and substantially forms single-phase particles. The lithium manganate particle powder is characterized by having a composition satisfying the following chemical formula: Li<SB>1+x</SB>Mn<SB>2-x-y</SB>Y1<SB>y</SB>O<SB>4</SB>+Y2 (wherein Y1=Ni, Co, Mg, Fe, Al, Cr, and Ti; 0.03≤x≤0.15; 0.05≤y≤0.20; and Y2= phosphorus in a phosphorous compound whose melting point is ≤800°C). The lithium manganate particle powder is also characterized by having a BET specific surface area of 0.5-0.9 m<SP>2</SP>/g and an average particle diameter (D50) of 3-10 μm. <P>COPYRIGHT: (C)2009,JPO&INPIT |
