LITHIUM TITANATE, MANUFACTURING METHOD THEREFOR, SLURRY USED IN SAID MANUFACTURING METHOD, ELECTRODE ACTIVE MATERIAL CONTAINING SAID LITHIUM TITANATE, AND LITHIUM SECONDARY BATTERY USING SAID ELECTRODE ACTIVE MATERIAL
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United States of America Patent
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Oct 18, 2012
app pub date -
Dec 20, 2010
filing date -
Dec 22, 2009
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Disclosed is a lithium titanate that, when used as a positive electrode active material in a lithium secondary battery having a metallic lithium negative electrode, provides a discharge capacity at a discharge rate of 30 C that is at least 75% of the discharge capacity at a discharge rate of 0.25 C. The disclosed lithium titanate can be obtained by drying, and then firing in an inert atmosphere, a slurry that contains, at least, a lithium compound, a titanium compound, a surfactant, and a carbon material. Said lithium titanate is useful as an active material in a lithium secondary battery with excellent battery characteristics, particularly rate characteristics
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