US 12,227,427 B2
Synthesis of nanosized cubic lithium lanthanum zirconate fast ion conductor
Jon Mark Weller, Phoenix, AZ (US); and Candace Chan, Phoenix, AZ (US)
Assigned to Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (US)
Filed by Jon Mark Weller, Phoenix, AZ (US); and Candace Chan, Phoenix, AZ (US)
Filed on Jul. 2, 2021, as Appl. No. 17/366,990.
Application 17/366,990 is a continuation of application No. 16/111,939, filed on Aug. 24, 2018, granted, now 11,053,134.
Claims priority of provisional application 62/550,155, filed on Aug. 25, 2017.
Prior Publication US 2021/0403340 A1, Dec. 30, 2021
Int. Cl. C01G 25/00 (2006.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01)
CPC C01G 25/006 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2002/76 (2013.01); C01P 2002/85 (2013.01); C01P 2004/04 (2013.01); C01P 2004/51 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01); H01M 2300/0077 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of synthesizing tantalum-doped lithium lanthanum zirconate, the method comprising:
combining a reagent composition with a molten salt composition to yield a salt reaction medium, wherein the reagent composition comprises a lithium component, a lanthanum component, a zirconium component, and a tantalum component;
heating the salt reaction medium to a temperature in a range of 500° C. to 1000° C. to yield a reaction product comprising tantalum-doped lithium lanthanum zirconate,
wherein the salt composition is selected from the group consisting of one of the following mixtures:
a eutectic mixture of potassium chloride and lithium chloride,
lithium hydroxide,
a eutectic mixture of lithium chloride and lithium hydroxide,
a eutectic mixture of lithium bromide and potassium bromide, and
a eutectic mixture of sodium chloride and potassium chloride.