Lithium manganese for non-aqueous electrolyte secondary battery, method for production thereof, and non-aqueous electrolyte secondary battery

Disclosed is lithium manganese having high power and excellent high-temperature stability. Specifically disclosed is a lithium manganese particle powder which has a primary particle diameter of 1 [mu]m or more, an average particle diameter of behavioral particles (D50) of 1 to 10 [mu]m (inclusive),...

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Bibliographic Details
Main Authors ISHIZAKI KAZUTOSHI, SADAMURA HIDEAKI, UEGAMI MASAYUKI, KAJIYAMA AKIHISA
Format Patent
LanguageChinese
English
Published 03.10.2012
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Disclosed is lithium manganese having high power and excellent high-temperature stability. Specifically disclosed is a lithium manganese particle powder which has a primary particle diameter of 1 [mu]m or more, an average particle diameter of behavioral particles (D50) of 1 to 10 [mu]m (inclusive), which substantially forms a single crystal particle, and which is represented by the chemical formula: Li1+xMn2-x-yYyO4 [Y = Al, Mg or Co; 0.03 = x = 0.15, 0.05 = y = 0.20], wherein the element Y is homogeneously dispersed in the interior of the particle, the I(400)/I(111) ratio is 33% or more, and the I(440)/I(111) ratio is 16% or more.
Bibliography:Application Number: CN200880010546