| abstract |
PROBLEM TO BE SOLVED: To provide a positive electrode active material having good capacity characteristics. In the present disclosure, a positive electrode active material used in a fluoride ion battery, the positive electrode active material is an alloy containing a metal element M and a metal element M'as main components, and the metal element. M is at least one of Cu, Fe and Mn, and the above metal element M'is at least one of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Yb. , The above problem is solved by providing a positive electrode active material. [Selection diagram] Fig. 2 |