POWER-GENERATING MATERIAL, POWER-GENERATING ELEMENT, AND POWER-GENERATING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a power-generating material which enables the sufficient development of a power generating performance even in a high-temperature region; a power-generating element arranged by use of such a power-generating material; and a power-generating system obtained by use of such a power-generating element.SOLUTION: A power-generating element comprises: a power-generating material expressed by the general formula (1) below. A power-generating system is arranged by use of the power-generating element. (AB)NbO(1)(where A and B are different from each other, and each represent at least one element selected from rare earth elements, alkali-earth metals, alkali metals, Cd and Bi; and x represents a composition of the atom in a numerical range of 0