Method for producing dense lithium lanthanum tantalate lithium-ion conducting ceramics

DWPI Title: Producing lithium lanthanum tantalate ceramic, comprises e.g. dissolving lithium nitrate and lanthanum acetate, suspending tantalum oxide, blending resultant, combusting stoichiometric mixture and calcining inorganic mixture
Abstract: A method to produce high density, uniform lithium lanthanum tantalate lithium-ion conducting ceramics uses small particles that are sintered in a pressureless crucible that limits loss of Li2O.
Use: The method is useful for producing the lithium lanthanum tantalate ceramic.
Advantage: The method provides high dense and uniform lithium lanthanum tantalate lithium-ion conducting ceramics without phase decomposition by pressure less sintering.
Novelty: Producing lithium lanthanum tantalate ceramic, comprises: dissolving lithium nitrate in alcohol solvent; dissolving lanthanum acetate in acid solvent; suspending tantalum oxide in alcohol; blending the resultants and evaporating solvents to provide stoichiometric mixture; combusting stoichiometric mixture at high temperature to remove organics, to provide inorganic mixture; calcining inorganic mixture at high temperature to remove carbonates, to providing mixed oxide powder; and sintering mixed oxide powder in closed and non-reactive crucible at high temperature and pressure.
Filed: 1/29/2016
Application Number: US15010875A
Tech ID: SD 13096.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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