Low resistance fuel electrodes
First Claim
1. A gas permeable electrode comprising ceramic metal oxide and metal particles bonded to a solid, ion conducting electrolyte, the improvement characterized in that heat stable metal fibers are disposed within the electrode structure as an interlocking matrix enclosing the metal particles and providing contact points between the metal fibers themselves and between the metal fibers and the metal particles, to form a porous electrode structure having extensive electronic interconnection between the metal particles.
3 Assignments
0 Petitions
Accused Products
Abstract
An electrode 6 bonded to a solid, ion conducting electrolyte 5 is made, where the electrode 6 comprises a ceramic metal oxide 18, metal particles 17, and heat stable metal fibers 19, where the metal fibers provide a matrix structure for the electrode. The electrolyte 5 can be bonded to an air electrode cathode 4, to provide an electrochemical cell 2, preferably of tubular design.
55 Citations
12 Claims
- 1. A gas permeable electrode comprising ceramic metal oxide and metal particles bonded to a solid, ion conducting electrolyte, the improvement characterized in that heat stable metal fibers are disposed within the electrode structure as an interlocking matrix enclosing the metal particles and providing contact points between the metal fibers themselves and between the metal fibers and the metal particles, to form a porous electrode structure having extensive electronic interconnection between the metal particles.
- 7. A tubular electrochemical cell containing an exterior, gas permeable electrode bonded to the exterior of a tubular, solid, oxygen ion conducting electrolyte where the electrolyte is also in contact with an interior electrode, said exterior, gas permeable electrode comprising metal particles partly embedded in a skeletal structure of a ceramic metal oxide, the improvement characterized in that heat stable metal fibers are disposed within the exterior electrode structure as an interlocking matrix enclosing the metal particles and providing contact points between the metal fibers themselves and between the metal fibers and the metal particles, to form a porous electrode structure having extensive electronic interconnection between the metal particles.
Specification