Patent ID: 6946213
Filing Date: 2005-09-20
Classification: H01M,Y02E,Y10S

Abstract:
1. A ceramic electrode material in powdered form, the material having a perovskite structure and a composition that satisfies the formula (A 1-x A′ x ) 1-z (B 1-y B′ y )O 3-δ , where is selected from a lanthanide element, bismuth, a trivalent cation having an ionic radius between 0.8 and 1.4 Å, and mixtures thereof; A′ is selected from an alkaline earth element, lead, a divalent cation having an ionic radius between 0.4 and 0.9 Å, and mixtures thereof; B is selected from Al, Ga, Sn, a transition element other than Cu, Ni, or Zn, and mixtures thereof; B′ is selected from Mg, Zn, and mixtures thereof; x is less than or equal to 0.5; z is less than or equal to 0.20; and y is greater than 0 and less than 0.20.