SOLID ELECTROLYTE MATERIAL AND BATTERY INCLUDING THE SAME

A solid electrolyte material of the present disclosure includes a crystal phase represented by Li(CaM)X. In the formula, M is at least one element selected from the group consisting of Mg, Sr, and Ba. X is at least one element selected from the group consisting of F, Cl, Br, and I. The following formulas are satisfied: a>0, b>0, c>0, and 0≤m