| abstract |
A solid electrolyte material contains Li, Y, at least one selected from the group consisting of Mg, Ca, Sr, Ba, Zn, Sc, La, Sm, Bi, Zr, Hf, Nb, and Ta, and at least one selected from the group consisting of Cl, Br, and I. An X-ray diffraction pattern of the solid electrolyte material obtained by using Cu-Kα radiation as the X-ray source includes peaks within the range in which the diffraction angle 2θ is 25° or more and 35° or less, and also includes at least one peak within the range in which the diffraction angle 2θ is 43° or more and 51° or less. |