Patent ID: 6228522
Filing Date: 2001-05-08
Classification: C04B,H01M,Y02E,Y02P

Abstract:
A perovskite for a coating of interconnectors which are used in high temperature fuel cells, said perovskite having the formulaABO.sub.3-.epsilon.with A=(E.sub.1-w Ln.sub.w-.epsilon.) and B=(G.sub.1-z J.sub.z) in which the following hold:E is an alkaline earth metal,Ln is a lanthanide,G is a transition metal,J is a second transition metal,w is a number which is greater than 0.1 and less than 0.5,.delta. is a positive or negative number, the absolute value of which is less than about 0.02,z is a number which is greater than or equal to 0.00 and less than 0.5, and.epsilon. is a positive or negative number, the absolute value of which is less than about 0.5.