Patent ID: 9514855
Filing Date: 2016-12-06
CPC Classification: C01G,C01P,H01B,H01M,Y02E,Y02P

Claim Text:
1. A proton conductor having a perovskite-type crystal structure expressed by the compositional formula A a B 1-x B′ x O 3-δ , wherein, A is at least one selected from among group 2 elements; B is at least one selected from among group 4 elements and Ce; B′ is a group 3 element, a group 13 element, or a lanthanoid element; 0.5<a≦1.0, 0.0<x≦0.5, and 0.0<δ<3; and charge of the compositional formula is deviated from electrical neutrality in a range of −0.13 or more but less than 0, where the charge of the compositional formula equals (2×a)+(4×(1−x))+(3×x)−(2×(3−δ)).