| 摘要 |
PROBLEM TO BE SOLVED: To provide an active material realizing a lithium ion secondary battery having a large capacity.SOLUTION: The active material contains LiVOPOand satisfies the requirement that A(102)/{A(201)+A(020)} is in the range of 0.5 to 10 where A(102) is the peak area derived from the (102) face, A(201) is the peak area derived from the (201) face, and A(020) is the peak area derived from the (020) face, in the X-ray diffraction pattern of LiVOPO. |
