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US 11,999,630 B2Granted
Method of tuning the conversion temperature of cubic phase of aluminum-doped lithium lanthanum zirconium oxide
AssigneeUchicago Argonne, LLC
InventorsJoseph A. Libera, Yujia Liang, Trevor L. Dzwiniel, Krzysztof Pupek, Gregory K. Krumdick, Stephen Cotty
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Abstract
A process for forming cubic LLZO through the use of atomic mixing of metal salts used in an aerosol process. The cubic LLZO is formed at temperatures below 1000° C.
Claims15
A method, comprising:
- mixing metal nitrate salts comprising lanthanum nitrate, lithium nitrate, aluminum nitrate, and zirconium nitrate;
- forming a feed solution comprising a dopant with the metal nitrate salts in a solvent;
- generating a droplet from the feed solution;
- converting the droplet to an atomically mixed powder;
- and
- calcining the atomically mixed powder at a temperature less than 1000° C., forming cubic LLZO.
3 more elements
A method, comprising:
- forming a feed solution comprising an aluminum dopant, lanthanum precursor, lithium precursor, and zirconium precursor dissolved in a solvent comprising xylene and ethylhexanoic acid;
- generating a plurality of droplets 2-10 microns in diameter;
- exposing the plurality of droplets to a flame;
- converting at least a portion of the plurality of droplets to particles, forming a powder comprising atomically mixed aluminum, lanthanum, lithium, and zirconium;
- and
- calcinating powder at a calcine temperature of 650° C. to 1000° C. to form a cubic LLZO.
3 more elements
Dependencies are inferred from the claim text.