| 摘要 |
<p>To improve reversibility of LiCoO2 used as a positive pole active material in a lithium secondary cell, use is made of LiCoO2 which has a peak intensity of X-ray diffraction line on a (101) plane within the range of 5 to 15 when the peak intensity of the X-ray diffraction line on a (003) plane is 100.</p> |
