Ulsan National Institute of Science and Technology

Unist-academy Industry Research Corporation

Lg Chem, Ltd

Samsung Sdi Co., Inc.

L&f Co., Ltd.

Industry-university Cooperation Foundation Hanyang University

Unist (ulsan National Institute of Science and Technology )

Sj Materials Co., Ltd.

Unist, Inc.

Jaephil Cho

Je-Young Kim

Ki-Tae Kim

Hyun-Jung Kim

Soojin Park

Kwanghwan Cho

Hyun-Kon Song

Byoungman Bang

Jae-Bum Choo

Byung-Hee Han

Moonsu Yoon

Mi-Hee Park

Soon-Ho Ahn

Jung-Pil Lee

Da-Un Han

Chang-Won Park

Seung-Won Lee

Nam Hyung Kim

Byoung Man Bang

Ji Young Ma

Hyejung Kim

Jaekyung Sung

Sang-Hoon Jeon

Sin Ho Choi

Sooiin Park

Hyun Su Ma

Yoon Han Chang

Moon Su Yoon

Byung Do Park

Junho Eom

Minjoon Park

Su Jong Chae

Jin-Young Kim

Min Seong Ko

Youn-Han Chang

Min-Seong Ko

Yoo-Jung Kim

Hae-Suk Hwang

Hyungyeon Cha

Jun Hyeok Kim

Seong Hyeon Choi

Sujong Chae

Jiyoung Ma

Mi-Jung Noh

Yoonkwang Lee

Pilgun Oh

Min-Ho Seo

Hye-Jung Kim

Mi Hee Park

This application relates to a composite positive electrode active material for a lithium secondary battery. The composite positive electrode active material includes a nickel-based active material and a cobalt-boron compound-containing coating layer formed on a surface of the nickel-based active material. The application also relates to a method of preparation of the composite positive electrode active material. The application further relates to a lithium secondary battery including a positive electrode containing the composite positive electrode active material.

Composite positive electrode active material for lithium secondary battery, preparation method thereof, and lithium secondary battery including positive electrode including the same

Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.

Composite anode active material, method of preparing the composite anode material, and lithium secondary battery comprising the composite anode active material

Provided are a negative active material for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same, and the present invention may provide a negative active material for a lithium secondary battery including a secondary particle in which a plurality of silicon nanoparticles are aggregated; and a plurality of metal particles distributed in pores in the secondary particle, a manufacturing method thereof, and a lithium secondary battery including the same.

Negative active material for lithium secondary battery, manufacturing method thereof and lithium secondary battery including the same

The present disclosure relates to a rechargeable battery including a cell assembly including a plurality of unit cells disposed to be separated by a predetermined interval, a casing member receiving the cell assembly, a first connection part connecting the plurality of unit cells, and a second connection part disposed parallel to the first connection part and connecting the plurality of unit cells, wherein each of the plurality of unit cells includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode.

Rechargeable battery

Provided is a composite cathode active material including: a core including a lithium transition metal oxide, the lithium transition metal oxide being doped with nickel (Ni) and at least one element selected from Group 4 to Group 13 elements and having a layered crystalline phase belonging to the Space Group R-3m; and a coating layer on a surface of the core, the coating layer including a cobalt compound.

Cathode active material for lithium ion secondary batteries, method for manufacturing the same, and lithium ion secondary batteries including the same

Provided is a monocrystalline cathode active material for a lithium secondary battery, the monocrystalline cathode active material being represented by the Formula of LiPNiCOAO.

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

A positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same are disclosed, and the positive active material for a rechargeable lithium battery includes: a layered lithium composite oxide core; a first coating layer on the surface of the core and magnesium doped at a lithium site in the core; a NiO-phase second coating layer on the first coating layer wherein the NiO-phase has a rock salt structure; and a third coating layer on the second coating layer and including lithium magnesium phosphate.

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

An anode active material for a lithium secondary battery, a preparation method thereof, and a lithium secondary battery including the anode active material are provided. The anode active material includes carbon particles having a spherical shape, a first carbon coating layer present on surfaces of the carbon particles, a silicon coating layer present on the first carbon coating layer and including silicon nanoparticles, and a second carbon coating layer present on the silicon coating layer.

Anode active material for lithium secondary battery, preparation method therefor, and lithium secondary battery containing same

A composite cathode active material, including a nickel-based lithium transition metal oxide secondary particle, the nickel-based lithium transition metal oxide secondary particle including a coating layer containing lithium and cobalt on a surface of a primary particle of the secondary particle.

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

Disclosed are a positive active material for a rechargeable lithium battery including a nickel-containing lithium transition metal composite oxide and a coating layer positioned on the surface of the lithium transition metal composite oxide, wherein the coating layer includes vanadium oxide, lithium vanadium oxide, or a combination thereof, a method of manufacturing the same, and a rechargeable lithium battery including the same.

Positive active material for rechargeable lithium battery, method for manufacturing the same, and rechargeable lithium battery including the same

The present invention relates to a cathode active material for a lithium rechargeable battery, a method of manufacturing the same, and a lithium rechargeable battery including the same, and provides the cathode active material for the lithium rechargeable battery, including a core including a compound represented by the following Chemical Formula 1, and a coating layer positioned on the core and including a compound represented by the following Chemical Formula 2.LiMnO&#x2014;LiMO&#x2003;&#x2003;[Chemical Formula 1]

Cathode active material for lithium rechargeable battery, method of manufacturing the same, and lithium rechargeable battery including the same

The present invention relates to a method for preparing a silicon-based negative electrode active material, a negative electrode active material for a lithium secondary battery, and a lithium secondary battery comprising the same. More particularly, the method for preparing the silicon-based negative electrode active material comprises: preparing a porous silica (SiO) and a thin metal film; coating the porous silica onto the thin metal film; reducing the porous silica to a porous silicon by performing heat-treatment of the thin metal film and the porous silica; and obtaining the porous silicon.

Method for producing silicon-based negative electrode active material, negative electrode active material for lithium secondary battery, and lithium secondary battery comprising same

The present invention relates to a method for preparing a negative-electrode active material for rechargeable lithium battery, wherein the negative-electrode active material comprises a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween. In some embodiments, the method comprises modifying a material capable of doping and dedoping lithium with an organic functional group, mixing the modified material with an inorganic oxide, heating the mixture, and removing the inorganic oxide to form the negative-electrode active material.

Negative-electrode active material for rechargeable lithium battery

The present invention relates to negative-electrode active material for a lithium secondary battery exhibiting excellent capacity property and cycle life property, a method of preparing the same, and a lithium secondary battery using the negative-electrode active material, wherein the negative-electrode active material for a lithium secondary battery comprises a nanotube having a tube shape defined by an outer wall with a thickness of nanoscale, the outer wall of the nanotube comprises at least one non-carbonaceous material selected from the group consisting of silicon, germanium and antimony, and an amorphous carbon layer with a thickness of 5 nm or less is formed on the outer wall of the nanotube.

Negative-electrode active material for lithium secondary battery and method of preparing the same

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Ulsan, South Korea

Jaephil Cho