Cobalt oxide for lithium secondary battery, preparing method thereof, lithium cobalt oxide formed from the cobalt oxide, and lithium secondary battery having positive electrode including the lithium cobalt oxide
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United States of America Patent
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Jan 12, 2021
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Mar 15, 2018
app pub date -
Sep 12, 2017
filing date -
Sep 13, 2016
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Abstract
A cobalt oxide for a lithium secondary battery, a method of preparing the cobalt oxide; a lithium cobalt oxide for a lithium secondary battery formed from the cobalt oxide; and a lithium secondary battery having a positive electrode including the lithium cobalt oxide, the cobalt oxide having a tap density of about 2.8 g/cc to about 3.0 g/cc, and an intensity ratio of about 0.8 to about 1.2 of a second peak at 2θ of about 31.3±1° to a first peak at 2θ of about 19±1° in X-ray diffraction spectra, as analyzed by X-ray diffraction.
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