| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive electrode active material for a lithium battery provided with both high temperature resistance and battery characteristics. <P>SOLUTION: In an X-ray diffraction pattern measured by a powder X-ray diffraction device (XRD) using CuKα1 ray, this is the positive electrode active material for the lithium battery composed of manganese dioxide having a crystal structure in which a peak of which the peak intensity ratio is 0.05 or more against the peak of 2θ=37.3°±0.5° is provided at a position of 2θ=18.2°±0.5°, 19.5°±0.5°, 28.6°±0.5°, 56.6°±0.5°, 59.1°±0.5°, and 65.1°±0.5°, or furthermore at a position of 22.0°±1.0°. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
