Oxide material and a fuel cell electrode containing said...

Details Oxide material and a fuel cell electrode containing said... Oxide material and a fuel cell electrode containing said...

2005-03-21

2009-08-11

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C423S021100, C423S263000, C423S592100, C423S593100, C423S596000, C423S600000, C423S617000, C136S236100, C136S238000, C136S216000

Reexamination Certificate

active

07572532

ABSTRACT:
The invention relates to an oxide material of general formula (I) A2−x−yA′XA″yM1−zM′Z04+δ, wherein A and A′ are independently a metal cation of a group formed by lanthanides and/or alkalis and/or alkaline earths, A″ is a cationic gap, i.e. a cation vacancy A and/or A′, M and M′ are independently a metal of a group formed by transition metals such as 0<y<0.30, preferably 0<y=0.20; 0<δ<0.25, preferably 0<δ<0.10; 0=x=1; and 0=z=1. An air electrode containing said material and an electric power producing device in the form of a fuel cell provided with at least one electrochemical cell comprising said electrode are also disclosed.

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