BATTERY

An object of the present disclosure is to provide a battery having a high discharge capacity. A battery is equipped with a positive electrode, a first electrolyte layer, a second electrolyte layer, and a negative electrode arranged in this order, in which the first electrolyte layer contains a first solid electrolyte material, the second electrolyte layer contains a second solid electrolyte material different from the first solid electrolyte material, the first solid electrolyte material is represented by chemical formula (1): LiMOX where α, β, γ, and δ are all greater than 0, M is at least one element selected from the group consisting of metal elements other than Li, and metalloids, X is at least one element selected from the group consisting of CI, Br, and I, and a reduction potential of the second solid electrolyte material is lower than a reduction potential of the first solid electrolyte material.