Lg Chem, Ltd

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Korea University, Industry & Academy Collaboration Foundation of Korea University, Industry & Academy Collaboration Foundation

Moon Kyu Cho

Sung Soon Park

Dong Joon Ahn

Young Keun Kim

Joon Sung Bae

Eun Jung Lee

Jee Won Lee

Jae Bin Chung

Ji Hyun Min

Chang-Wan Koo

Hong Ling Liu

Jun Hua Wu

Ju Hun Lee

Su Jung Noh

Ji Ung Cho

Boo Hyun An

Jin Seung Park

Hye Min Ji

A positive electrode active material, a positive electrode including the same, and a lithium secondary batter including the same are disclosed herein. In some embodiments, the positive electrode active material includes a lithium transition metal oxide, and a coating layer formed on a surface of the lithium transition metal oxide particle, wherein the coating layer is formed in a film form, and the coating layer includes a carbonized coating polymer and carbide.

Method for preparing positive electrode active material for secondary battery, positive electrode active material thus prepared and lithium secondary battery including the same

In one embodiment, the present disclosure relates to a method of preparing a positive electrode active material, which includes mixing a nickel cobalt manganese hydroxide precursor containing nickel in an amount of 60 mol % or more based on a total number of moles of transition metals in the precursor, a lithium-containing raw material, and a doping raw material represented by Formula 2 (set forth herein), and sintering the mixture to prepare a positive electrode active material represented by Formula 1 (set forth herein).

Method of preparing positive electrode active material for lithium secondary battery, positive electrode active material prepared thereby, and positive electrode for lithium secondary battery and lithium secondary battery which include the positive electrode active material

The present invention relates to a positive electrode active material, wherein the positive electrode active material is a lithium transition metal oxide including a first doping element (A) and a second doping element (B), wherein the first doping element is one or more selected from the group consisting of Zr, La, Ce, Nb, Gd, Y, Sc, Ge, Ba, Sn, Sr, Cr, Mg, Sb, Bi, Zn, and Yb, the second doping element is one or more selected from the group consisting of Al, Ta, Mn, Se, Be, As, Mo, V, W, Si, and Co, and a weight ratio (A/B ratio) of the first doping element to the second doping element is 0.5 to 5.

Positive electrode active material, method of preparing the same, and lithium secondary battery including the same

A method for preparing a positive electrode active material for a secondary battery, includes providing a lithium transition metal oxide; forming a mixture by mixing the lithium transition metal oxide, a coating polymer and carbide; and heat-treating the mixture to form a coating layer including a carbonized coating polymer and carbide on the surface of the lithium transition metal oxide particle.

Disclosed is a cathode active material for secondary batteries in which a carboxymethyl cellulose derivative is coated on surfaces of particles of a lithium transition metal oxide having the formula LiMOwhere M: NiMnCowherein 0&#x2266;a&#x2266;0.9, 0&#x2266;b&#x2266;0.9, 0&#x2266;c&#x2266;0.5, and 0.85&#x2266;a+b+c&#x2266;1.05 and x+y=2, wherein 0.95&#x2266;x&#x2266;1.15.

Cathode active material and lithium secondary battery comprising same

Disclosed are an Fe&#x2014;Au barcode type nanowire and a method of manufacturing the same. The nanowire has a magnetic-optical multifunction and is suitable for adjusting magnetic intensity thereof. The Fe&#x2014;Au nanowire has a multilayered structure, in which an iron layer and a gold layer are alternately and repeatedly formed, and is formed in a single plating bath through a pulse electro-deposition.

Iron-gold barcode nanowire and manufacturing method thereof

There is provided a chimeric protein of capsid protein of Hepatitis B virus (HBV) and B domain of Staphylococcal protein A (SPA); a method for fabricating the same; the substrate and nanosensor immobilized with HBV-derived chimeric protein; and the use of the above nanosensor.

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Seoul, South Korea

Moon Kyu Cho