| abstract |
A ceramic powder material comprising a first garnet-type compound containing Li, La and Zr, and a second garnet-type compound containing Li, La and Zr, and having a different composition to the first garnet-type compound, wherein: the first garnet-type compound and the second garnet-type compound are represented by formula [1] Li7-(3x+y)M1xLa3Zr2-yM2yO12, where M1 is Al or Ga and M2 is Nb or Ta; the first garnet-type compound satisfies 0≤(3x+y)≤0.5; and the second garnet-type compound satisfies 0.5<(3x+y)≤1.5. |