US 10,381,673 B2Granted

Doped scandia stabilized zirconia electrolyte compositions

AssigneeBloom Energy Corporation

InventorsDavid N. Miller, Cristian Savaniu, John T S Irvine, Tad Armstrong

Life of this patent

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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.

Claims5

Dependent claims

An electrolyte composition for a solid oxide fuel cell, having a formula Zr1-w-x-zScwMgxYzOd, wherein:

0.1≤w≤0.18,
0<x≤0.03,
0<z≤0.08, and
1.8≤d≤2.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/340,625Filed 1 Nov 2016 · division
Priority: 20 Nov 2012
Published: US 2017/0117567 A127 Apr 2017
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01M 8/1253
The electrolyte consisting of oxides: the electrolyte containing zirconium oxide
H01M 2008/1293
Operating at high temperature, e.g. with stabilised ZrO2 electrolyte: fuel cells with solid oxide electrolytes
Y02E 60/50
Hydrogen technology: fuel cells
Y02P 70/50
Climate change mitigation technologies in the production process for final industrial or consumer products: manufacturing or production processes…

Family

Application61/728,270Us provisional application · filed 20 Nov 2012
Application61/792,699Us provisional application · filed 15 Mar 2013
Application14/083,708Parent of this division · filed 19 Nov 2013
US 2017/0117567 A1Pre-grant publication · published 27 Apr 2017
US 9,515,344 B2Parent of this division
US 2014/0141344 A1Published application
US 10,381,673 B2This patent

From the US filing history. Foreign family members aren’t listed.

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