Method for producing lithium composite metal oxide, lithium composite metal oxide, and nonaqueous electrolyte secondary battery

US9822015B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9822015-B2
Application numberUS-201013513885-A
CountryUS
Kind codeB2
Filing dateDec 2, 2010
Priority dateDec 7, 2009
Publication dateNov 21, 2017
Grant dateNov 21, 2017

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Abstract

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The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more inactive fluxes selected from the group consisting of a fluoride of A, a chloride of A, a carbonate of A, a sulfate of A, a nitrate of A, a phosphate of A, a hydroxide of A, a molybdate of A and a tungstate of A, wherein A is one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. The lithium mixed metal oxide contains nickel, cobalt and manganese, has a BET specific surface area of from 3 m 2 /g to 15 m 2 /g, and has an average particle diameter within a range of 0.1 μm or more to less than 1 μm, the diameter determined by a laser diffraction scattering method.

First claim

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The invention claimed is: 1. A lithium mixed metal oxide comprising nickel, cobalt, and manganese, having a BET specific surface area of from 5.1 m 2 /g to 15 m 2 /g, and having an average particle diameter within a range of 0.1 μm or more and 0.8 μm or less, the diameter determined by a laser diffraction scattering method, wherein the average particle diameter is the average diameter of primary particles and secondary particles in the lithium mixed metal oxide; wherein the lith…

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What does patent US9822015B2 cover?
The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more in…
Who is the assignee on this patent?
Shimano Satoshi, Nakane Kenji, Pitteloud Cedric, and 3 more
What technology area does this patent fall under?
Primary CPC classification C01G1/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 21 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).