Electrode material and battery

An electrode material comprising:

• an electrode active material;
• a first solid electrolyte material;
• and
• a coating material, wherein:
• the first solid electrolyte material includes Li, M, and X,
• where
• M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements;
• and
• X is at least one selected from the group consisting of Cl, Br, and I,
• the first solid electrolyte material does not include sulfur,
• the coating material is located on a surface of the electrode active material,
• the coating material is a polymer solid electrolyte,
• the first solid electrolyte material is represented by the following compositional formula (1):
• LiαMβXγ Formula (1)
• where
• α, β, and γ are all values larger than 0, and
• 2.5≤α≤3,
• 1≤β≤1.1, and
• γ=6
• are satisfied.