IP Library › Granted Patent US 10,026,990
Granted Patent B2
US 10,026,990 · App. 14/879,346 · Granted Jul 17, 2018

Lithium-ion conductive garnet and method of making membranes thereof

Inventors: Michael Edward Badding (Campbell, NY); Curtis Robert Fekety (Corning, NY); Tricia Anne Harnas (Elmira, NY); Yanxia Ann Lu (Painted Post, NY); Ying Shi (Painted Post, NY); Zhen Song (Painted Post, NY)
Assignee: Corning Incorporated
H01M10/0562C01G25/006C04B35/50H01B1/08H01M10/0525C01P2002/54C01P2002/72C01P2002/77C01P2002/88C01P2004/03C01P2006/32C01P2006/40H01M2300/0071
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Quick Facts
Patent No.
US 10,026,990
App. No.
14/879,346
Granted
Jul 17, 2018
Kind
B2
Abstract

A gallium doped garnet composition of the formula: Li 7-3y La 3 Zr 2 Ga y O 12 where y is from 0.4 to 2.0, and as defined herein. Also disclosed is a method for making a dense Li-ion conductive cubic garnet membrane, comprising one of two alternative lower temperature routes, as defined herein.

Claims (10)

1. A gallium doped garnet composition of the formula:

Li 7-3y La 3 Zr 2 Ga y O 12

where

y is from 0.5 to 2.0,

the composition is a cubic garnet powder having sub-micron-sized particles of from 100 nm to 1000 nm, and

the composition has a pure cubic garnet phase determined by x-ray diffraction (XRD) and has a lattice constant of 13.045 Angstroms.

2. The composition of claim 1 wherein y is from 0.6 to 2.0.

3. The composition of claim 1 wherein the sintering temperature of the composition is below 1000° C.

4. The composition of claim 1 wherein the composition is of the formula Li 5.2 La 3 Zr 2 Ga 0.6 O 12 .

5. The composition of claim 1 wherein y is 0.6.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2015
From: BADDING, MICHAEL EDWARD; FEKETY, CURTIS ROBERT; HARNAS, TRICIA ANNE; LU, YANXIA ANN; SHI, YING; SONG, ZHEN
To: CORNING INCORPORATED
Reel/Frame 036764/0783 →
Continuity (2)
Provisional Application 62064605 · Oct 16, 2014
Related Publication 20160111751A1 · Apr 21, 2016
Cited By (6)
US 12,237,475 US 12,240,143 US 12,378,164 US 12,469,876 US 12,479,771 US 12,533,869