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US 5,630,993 AGranted
Low temperature synthesis of layered lithiated transition metal oxides
AssigneeBell Communications Research, Inc.
InventorsGlenn G. Amatucci, Jean-Marie Tarascon
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Abstract
A method of making a single phase, layered lithiated transition metal oxide material which comprises reacting a transition metal hydroxide with a lithium source in a basic solution in the presence of water at a pressure greater than atmospheric and at a temperature of from about 50.degree. C. to 150.degree. C.
Claims13
A method of making a single phase layered alkali metal oxide material of the formula
- H.sub.x A.sub.1-x MO.sub.2
- wherein A is an alkali metal of the group Ia, x is a number from 0.99 to 0, and M is a transition metal selected from the group consisting of CO and Ni, which method comprises reacting an alkali metal ion source in a basic solution with MOOH, wherein M is as defined above, in the presence of water and at a temperature of from about 50.degree. C. to about 150.degree. C. and a pressure greater than atmospheric.
A method of making a single-phase layered lithium metal selected from cobalt and nickel oxide material of the formula
- H.sub.x Li.sub.1-x MO.sub.2
- wherein x is a number of from the group consisting of 0.99 to 0 and M is a transition metal, which method comprises reacting a lithium ion source in a basic solution with MOOH, wherein M is as defined above, in the presence of water and at a temperature of from about 50.degree. C. to about 150.degree. C. and a pressure greater than atmospheric.
Dependencies are inferred from the claim text.