CATHODE ACTIVE MATERIAL AND FLUORIDE ION BATTERY

A main object of the present disclosure is to provide a cathode active material with excellent capacity properties. In order to achieve the object, the present disclosure provides a cathode active material to be used in a fluoride ion battery wherein the cathode active material mainly contains a metal element M and a metal element M′; the metal element M is at least one kind of Cu, Fe and Mn; and the metal element M′ is at least one kind of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Yb.