Composite cathode active material, cathode and lithium battery containing the material and method of preparing the same

A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes: a lithium transition metal oxide; and a lithium-containing impurity on a surface of the lithium transition meta...

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Bibliographic Details
Main Authors BAE MYUNG-HUN, HASE NAOYUKI
Format Patent
LanguageEnglish
Published 20.01.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes: a lithium transition metal oxide; and a lithium-containing impurity on a surface of the lithium transition metal oxide. The lithium-containing impurity includes free lithium in an amount of about 0.050 wt % or less based on a total weight of the composite cathode active material, and LiOH and Li2CO3 in a mole ratio of LiOH to Li2CO3 of about 0.50 or less.
Bibliography:Application Number: US201313801838