IP Library › Granted Patent US 10,381,673
Granted Patent B2
US 10,381,673 · App. 15/340,625 · Granted Aug 13, 2019

Doped scandia stabilized zirconia electrolyte compositions

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Quick Facts
Patent No.
US 10,381,673
App. No.
15/340,625
Granted
Aug 13, 2019
Kind
B2
Abstract

A solid oxide fuel cell (SOFC) electrolyte composition includes zirconia stabilized with scandia, and at least one of magnesia, zinc oxide, indium oxide, and gallium oxide, and optionally ceria in addition to the oxides above.

Claims (9)

1. An electrolyte composition for a solid oxide fuel cell, having a formula Zr 1-w-x-z Sc w Mg x Y z O d , wherein:

0.1≤w≤0.18,

0<x≤0.03,

0<z≤0.08, and

1.8≤d≤2.

2. The electrolyte composition of claim 1 , wherein w=0.171−z, wherein 0.013≤x≤0.014.

3. The electrolyte composition of claim 2 , wherein z=0.018.

4. The electrolyte composition of claim 1 , wherein w=0.144−z, and wherein 0.02≤x≤0.03.

5. The electrolyte composition of claim 1 , wherein 0.018≤z≤0.072.

Cited By (3)
US 12,320,949 US 12,491,457 US 12,518,559