| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lithium ion conductive glass ceramic having high lithium ion conductivity and high crystallinity after being subjected to heat treatment.SOLUTION: A lithium ion conductive glass ceramic contains, as a composition in terms of mol%, 30-37.4% of PO, 30-50% of TiO, 10-25% of LiO, 0-10% (provided that 0% is not included) of MO(M=Al or Ga) and 0-4% (provided that 4% is not included) of SiO. The glass ceramic preferably contains a crystal containing Li, M, Ti, P and O and having a NASICON type structure as a main crystal. |
