Lg Chem, Ltd

SooHyun Lim

Jae Hyun Lee

Jihyun Kim

Tae Jin Park

SeongMin Lee

MinHee Lee

Daehong Kim

Jong Ho Jeon

YounKyoung Lee

Disclosed are an electrode active material containing moisture in an amount less than 2,000 ppm per 1 g of lithium metal oxide or moisture in an amount less than 7,000 ppm per 1 cmof the lithium metal oxide, and an electrode containing moisture in an amount less than 2,000 ppm per 1 cmof an electrode mix.

Moisture-limited electrode active material, moisture-limited electrode and lithium secondary battery comprising the same

Disclosed is a cathode active material comprising a lithium manganese composite oxide with a spinel structure represented by the following Formula 1, wherein the lithium manganese composite oxide is surface-coated with a conductive polymer in an area of 30 to 100%, based on the surface area of the lithium manganese composite oxide:LiMMnOA&#x2003;&#x2003;(1) Disclosed is also a secondary battery comprising the cathode active material.

Cathode active material and lithium secondary battery comprising the same

Disclosed are an anode active material comprising a lithium metal oxide, and a metal powder reacting with lithium ions present in an electrolyte to form a lithium alloy, or a metal oxide, the metal powder or the metal oxide having a content of not lower than 1% by weight and not higher than 30% by weight, based on the total weight of an anode mix, and a lithium secondary battery comprising the same.

Anode active material having high capacity and lithium secondary battery comprising the same

Disclosed are a method for preparing an electrode mix comprising (i) adding an electrode active material, a conductive material and a binder to a solvent, (ii) further adding a surfactant to the mixture of step (i), and (iii) mixing the resulting mixture of step (ii) and an electrode mix for secondary batteries prepared by the method.

Method for preparing electrode mix and the electrode mix prepared by using the same

Disclosed is a cathode active material comprising a lithium nickel manganese composite oxide with a spinel structure represented by the following Formula 1, wherein the cathode active material is surface-coated with a silane compound and a silicon content of the silane compound is 0.01 to 5% by weight, based on the total amount of the cathode active material:LiMMnOA&#x2003;&#x2003;(1) Disclosed is also a secondary battery comprising the same.

Cathode active material and the secondary battery comprising the same

Disclosed is a secondary battery comprising an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode, the secondary battery comprising a HF scavenger.

Secondary battery having improved safety

Disclosed is cathode active material comprising a combination of a lithium manganese composite oxide having a spinel structure represented by the following Formula 1 with a lithium nickel composite oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge:LiMMnOA&#x2003;&#x2003;(1) Disclosed is also a secondary battery comprising the cathode active material.

Disclosed is an anode active material for secondary batteries enabling intercalation and deintercalation of lithium ions, the anode active material comprising lithium metal oxide containing a halogen atom.

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Daejeon, South Korea

SooHyun Lim