Lg Chem, Ltd

Jihee Woo

Dong Hyun Cho

Seungyong Lee

KyungYeon Kang

SungJin Kim

Hyungsik Jang

Kyung Yeon Kang

Seungyong Son

Yelin Kim

Sang Hoon Choy

Jinmyung Cha

Hyeon Sik Choi

Dong Hyun Kim

Jong Won Lee

Dongchul Lee

Houngsik Yoo

Gyemin Kwon

Jongheon Seol

Hyun Woo Park

Eugene Oh

Jung Keun Yoo

Kwang Woo Yoon

Seokwon Kim

Donghyun Cho

Ogsin Kim

KwangWoo Yoon

Jungkeun Yoo

Provided is a method for preparing a supported catalyst that enables the production of carbon nanotubes having a large specific surface area in high yield. Carbon nanotubes produced using the supported catalyst are also provided. The carbon nanotubes are suitable for use in various applications due to their large specific surface area and high yield.

Carbon nanotube having high specific surface area and method for manufacturing same

The apparatus for manufacturing carbon nanotube pellets according to the present invention provides carbon nanotube pellets with increased apparent density by using only a small amount of solvent. The carbon nanotube pellets produced by the apparatus according to the present invention can improve various problems generated by scattering of powders. And since the density of the pellet form is high, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

Apparatus for manufacturing carbon nanotube pellets

The carbon nanotubes according to the present invention can provide higher conductivity by allowing the BET and crystal size to satisfy the conditions expressed by formula 1 below, and consequently, can improve the conductivity of a carbon composite material containing the carbon nanotubes.&#xd7;[Specific surface area of CNT (cm/g)]&#x3e;80&#x2003;&#x2003;[Formula 1]

Highly conductive carbon nanotubes and method for manufacturing same

The present invention relates to a device for drying and collecting a product such as a carbon nanotube pellet or aggregate, which can accelerate solvent evaporation by inserting and dispersing high temperature gas into a drying column as well as by a heat source inside and outside of the column, and can quickly remove the evaporated solvent. Further, the device can be used for drying and collecting processes while minimizing product breakage by regulating the gas flow rate and controlling flow of the product in the column. Thus, the device can be effectively applied to mass production of a carbon nanotube pellet product.

Device for drying and recovering carbon nanotube product and method for manufacturing carbon nanotube using same

The present invention relates to a supported catalyst that can be used to produce a carbon nanotube aggregate with high bulk density, a method for preparing the supported catalyst, a carbon nanotube aggregate produced using the supported catalyst, and a method for producing the carbon nanotube aggregate. According to the present invention, the bulk density of the carbon nanotube aggregate is easily controllable. Therefore, the carbon nanotube aggregate is suitable for use in various fields.

Method for manufacturing carbon nanotube agglomerate having controlled bulk density

The method for producing carbon nanotube pellets according to the present invention can reduce the particle size of the carbon nanotubes contained in the pellet by a repetitive extrusion process to produce pellets having improved dispersion characteristics in a solvent. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

Carbon nanotube pellets and method for manufacturing same

The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.

Carbon nanotube dispersion and method for producing same

The present invention relates to a method for producing large-diameter, low-density carbon nanotubes. The method uses a catalyst containing spherical &#x3b1;-alumina that is capable of controlling the growth of carbon nanotubes without deteriorating the quality of the carbon nanotubes. The use of the catalyst makes the carbon nanotubes highly dispersible.

Carbon nanotubes having larger diameter and lower bulk density and process for preparing same

The present disclosure relates to a carbon nanotube dispersion including carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to Mathematical Formula 1, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.

Carbon nanotube dispersion liquid and manufacturing method thereof

Provided is a supported catalyst for producing carbon nanotubes with a large specific surface area. The supported catalyst enables the production of carbon nanotubes with a large specific surface area in high yield. Therefore, the catalyst can be used in various fields. Also provided are carbon nanotubes produced using the supported catalyst.

Catalyst for producing carbon nanotubes and carbon nanotubes produced using same

The present invention relates to a method for producing a carbon nanotube aggregate whose bulk density is easily controllable. Therefore, the present invention provides a carbon nanotube aggregate suitable for use in various fields.

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Daejeon, South Korea

Jihee Woo