Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Seoul National University

Jun-young Mun

Jin-hwan Park

Yoon-sok Kang

Jae-gu Yoon

Min-sik Park

Jun-ho Park

Gue-sung Kim

Myung-hoon Kim

Byung-jin Choi

Jae-myung Lee

Jun-Ho Park

Doo-yeon Lee

Duk-Jin Oh

Hyung-Tae Kim

Oh-min Kwon

Seung-sik Hwang

Mi-jeong Song

Myung-jin Lee

Dong-joon Lee

Joung-won Park

Tae-ho Yoon

Sung-jin Ahn

Young-Gyu Kim

Young-gyu Kim

Seung-mo Oh

Tae-eun Yim

A composite cathode active material, a method of preparing the composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes a lithium intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material.

Composite cathode active material, method of preparing the composite cathode active material, and cathode and lithium battery each including the composite cathode active material

An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and Rto Rare defined in the specification.

Electrolyte for lithium secondary battery and lithium secondary battery using the same

A composite cathode active material including: a composite oxide capable of intercalation and deintercalation of lithium; a carbon nanostructure; and a material which is chemically inert to lithium.

Composite cathode active material, lithium battery including the same, and preparation method thereof

A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements.

A composition for filling an ion exchange membrane, a method of preparing the ion exchange membrane, the filled ion exchange membrane, and a redox flow battery using the filled ion exchange membrane. The composition includes an ion conductive material and a water soluble support.

Ion exchange membrane filling composition, method of preparing ion exchange membrane, ion exchange membrane, and redox flow battery

An organic electrolyte solution including a metal-ligand coordination compound, wherein the ligand is an organic phosphate compound.

Organic electrolyte solution and redox flow battery including the same

A surface-treated electrode active material, a method of surface treating an electrode active material, an electrode, and a lithium secondary battery. The surface-treated electrode active material includes a surface metal oxide layer having higher degree of reduction of a metal than that of a bulk metal oxide layer. The method includes: forming a mixture by adding an untreated electrode active material comprising a metal oxide, and at least one of a basic material and a reducing material to a solvent; and stirring the mixture.

Surface-treated electrode active material, method of surface treating electrode active material, electrode, and lithium secondary battery

An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a polar additive based on a substituted hetero-bicyclic compound. Oxidation of the electrolyte is prevented by formation of a polar thin film on a surface portion of the positive electrode, which facilitates transfer of lithium ions. The lithium secondary batteries using the electrolyte have excellent high temperature life characteristics and high temperature conservation characteristics.

Electrolyte for lithium secondary battery and lithium secondary battery including the same

A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide.

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

A composite cathode active material including a lithium metal oxide including an oxide Formula 1 and sulfur,LiMnO.(1)LiMOLiMnO&#x2003;&#x2003;(1)wherein 0&#x3c;x&#x3c;0.6, 0&#x3c;y&#x3c;0.1, and M is at least one selected from a metal and a metalloid.

Composite cathode active material, method of preparing the same, and cathode and lithium battery containing the same

An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: 

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Seoul, South Korea

Jun-young Mun