Lg Energy Solution, Ltd.

Lg Chem, Ltd

Jongmin Roh

Seokhyun Yoon

Byunggook Lyu

Hosub Lee

Donghoon Suh

Yoon Jae Lee

A lithium transition metal oxide which is capable of minimizing a side reaction with an electrolyte, thereby suppressing the generation of gas during charging and discharging of a lithium secondary battery is provided. The lithium transition metal oxide is a lithium cobalt oxide which contains a hetero-element, wherein the hetero-element includes a 4th period transition metal; and at least one selected from the group consisting of a group 2 element, a group 13 element, a group 14 element, a 5th period transition metal, and a 6th period transition metal. The lithium transition metal oxide has a cumulative 50% particle diameter (D50) of 10.0 μm to 25.0 μm and a ratio (D/D) of a maximum particle diameter (D) to a minimum particle diameter (D) of 10.0 to 60.0 when measured by laser diffraction scattering particle size distribution.

Lithium transition metal oxide, positive electrode additive for lithium secondary battery, and lithium secondary battery comprising the same

The present invention relates to a metal oxide coated with a conductive polymer, including: a metal oxide; and a coating layer which is formed on the surface of the metal oxide and includes a conductive polymer, wherein the conductive polymer is a polymer of protonated monomers.

Metal oxide coated with conductive polymer, electrode for electrochemical device comprising the same, and method of producing the metal oxide

The present invention relates to a method for preparing a lithium manganese oxide-based material useful in applications such as for pseudocapacitors and lithium ions batteries. More specifically, by synthesizing manganese oxide nanoparticles and mixing them with lithium salts, and conducting stepwise heat treatment processes under optimized conditions, a lithium manganese oxide-based material with excellent specific capacitance, having a high surface area with a small size, can be prepared.

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Daejeon, South Korea

Jongmin Roh