Stabilized lithium metal oxide electrode material and method of preparation

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United States of America Patent

PATENT NO 11929502
APP PUB NO 20230268502A1
SERIAL NO

18133925

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A stabilized lithium metal oxide cathode material comprises microparticles of lithium metal oxide in which individual particles thereof a core of lithium metal oxide and a coating of a different lithium metal oxide surrounding the core. There is an interface layer between the cores and the coatings in which there are gradients of metal ions in the direction of coating to core. The materials are made by a three stage process involving coprecipitating precursor metal hydroxide core particles at a controlled pH; coprecipitating a different metal hydroxide coating on the particles without controlling the pH; and then calcining the resulting coated precursor particles with lithium hydroxide to form the stabilized lithium metal oxide material.

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Patent Owner(s)

  • UCHICAGO ARGONNE, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Durham, Jessica L Frankfort, US 7 4
Lipson, Albert L Forest Park, US 9 20

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