Samsung Sdi Co., Inc.

Junseok Park

Dohyung Park

Jihyun Kim

Seonyoung Kwon

Daehoe Lee

Jinhwa Kim

Dongjin Kim

Minhan Kim

ILseok Kim

Sooyoun Park

Gyuran Jeon

Jeonjin Choi

Youngki Kim

Okgyu Lim

Ilseok Kim

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 2&#x3b8; of about 31.3&#xb1;1&#xb0; to a first peak at 2&#x3b8; of about 19&#xb1;1&#xb0; in X-ray diffraction spectra, as analyzed by X-ray diffraction.

Lithium cobalt oxide for a lithium secondary battery and lithium secondary battery comprising positive electrode including the same

Provided are a cobalt oxide (CoO) for a lithium secondary battery, having an average particle diameter (D50) of about 14 &#x3bc;m to about 19 &#x3bc;m and a tap density of about 2.1 g/cc to about 2.9 g/cc, a method of preparing the cobalt oxide, a lithium cobalt oxide for a lithium secondary battery prepared from the cobalt oxide, and a lithium secondary battery including a cathode including the lithium cobalt oxide.

Cobalt oxide for lithium secondary battery, preparing method thereof, lithium cobalt oxide for lithium secondary battery formed from the cobalt oxide, and lithium secondary battery including positive electrode comprising the lithium cobalt oxide

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

The present disclosure relates to a cathode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery comprising same, the cathode active material comprising a lithium-nickel compound oxide, wherein a c-axis lattice parameter of a unit lattice of the lithium-nickel compound oxide satisfies Formula 1:14.1720 &#x212b;A&#x2264;c&#x2264;14.1750 &#x212b;A&#x2003;&#x2003;[Formula 1]

Cathode active material for lithium secondary battery, method for producing same, and lithium secondary battery comprising same

Growing community of inventors

Yongin-si, South Korea

Junseok Park