IP Library › Granted Patent US 9,515,344
Granted Patent B2
US 9,515,344 · App. 14/083,708 · Granted Dec 6, 2016

Doped scandia stabilized zirconia electrolyte compositions

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Quick Facts
Patent No.
US 9,515,344
App. No.
14/083,708
Granted
Dec 6, 2016
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 (5)

1. An electrolyte composition for a solid oxide fuel cell, wherein the electrolyte composition is characterized by a formula Zr 1-w-y-z Sc w Ce z In y O d , wherein 0<w≦0.182, wherein 0<y≦0.164, wherein 0.008≦z≦0.01, and wherein 1.8≦d≦2.

2. The electrolyte composition of claim 1 , wherein 0<w≦0.164.

3. The electrolyte composition of claim 1 , wherein 0.072≦w≦0.182, and wherein 0<y≦0.1098.

4. The electrolyte composition of claim 1 , wherein w=0.182−y, wherein y=0.018, and wherein z=0.009.

5. The electrolyte composition of claim 1 , wherein w=0.164−y, and wherein z=0.009.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Nov 29, 2018
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: BLOOM ENERGY CORPORATION
Reel/Frame 047686/0121 →
SECURITY INTEREST Recorded Dec 15, 2015
From: BLOOM ENERGY CORPORATION
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 037301/0093 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2014
From: MILLER, DAVID N; SAVANIU, CRISTIAN; IRVINE, JOHN TS; ARMSTRONG, TAD
To: BLOOM ENERGY CORPORATION
Reel/Frame 032493/0571 →