Lg Chem, Ltd

Lg Energy Solution, Ltd.

Korea Research Institute of Bioscience and Biotechnology

Su Jin Park

Eun Kyung Kim

Yong Ju Lee

Hyun Chul Kim

Byung Hun Oh

Won Jong Kwon

Jung Hyun Choi

Kwon Nam Sohn

Kil Sun Lee

Young Min Kim

Sun Young Shin

Rae Hwan Jo

In Young Kim

Je An Lee

Young Jae Kim

Hyun Wook Kim

Mi Jin Lee

Kwang Hyun Yoo

Young Bae Ryu

Kyung Ryun Ka

Seung Bo Yang

YoHan Kwon

Woo Song Lee

Eui Yong Hwang

Sang Joon Lee

Mun Chual Rho

Taegon Kim

Seung Woong Lee

Jaewook Lee

Chan Soo Jun

Kyoung Oh Cho

Mi Hye Park

Ji Hak Jeong

Jong Sun Chang

Seoyoung Jeon

Hyun Mee Oh

A separator having a polyolefin substrate, first coating layer including first inorganic particles on at least one surface of the polyolefin substrate and a second coating layer including second inorganic particles on a surface of the first coating layer opposite the polyolefin substrate. An average particle size of the first inorganic material particles of the first coating layer is greater than an average particle size of the second inorganic material particles of the second coating layer. The first inorganic particles of the first coating layer are 900 nm or more based on D50, and the second inorganic particles of the second coating layer are 10 nm or more and 500 nm or less based on D50.

Separator comprising dual coating layers and secondary battery comprising the same

Disclosed is a negative electrode composition, a negative electrode for a lithium secondary battery, including the same, and a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition.

Negative electrode for lithium secondary battery, lithium secondary battery comprising negative electrode, and method for preparing negative electrode for lithium secondary battery

A negative electrode active material particle and a method for preparing the same are provided. The negative electrode active material particle includes SiO(0&#x3c;x&#x2264;2) and LiSiO, and includes less than 2 wt % of LiSiOand LiSiO.

Negative electrode active particle and method for manufacturing the same

The present invention relates to a conducting material composition which is allowed to provide an electrode having a higher content of uniformly dispersed carbon nanotubes, thereby providing a lithium rechargeable batteryelectrode having more improved electrical characteristics and life characteristics, a slurry composition for forming a lithium rechargeable batteryelectrode using the same, and a lithium rechargeable battery. The conducting material composition includes carbon nanotube; and a dispersing agent including a plurality of polyaromatic hydrocarbon oxides, in which the dispersing agent contains the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in an amount of 60% by weight or more.

Conducting material composition, slurry composition for forming electrode of lithium rechargeable battery and lithium rechargeable battery using the same

The present invention relates to a silicon-based active material-polymer composite which is secondary particles in which silicon-based particles as primary particles and conductive polymer particles having a modulus of elasticity of 10 Pa to 100 Pa at a temperature of 20&#xb0; C. to 40&#xb0; C. are uniformly mixed. The uniform mixture with the elastic conductive polymer particles provides for a buffering action against the stress generated by volumetric changes of the silicon-based particles.

Silicon-based active material-polymer composite and method for preparing same

A negative electrode active material for a secondary battery is provided. The negative electrode active material is composed of a composite including a metal element-doped inorganic particle or inorganic oxide particle, and a polymer coating layer coated on the metal element-doped inorganic particle or inorganic oxide particle, wherein the metal element is included in an amount of 0.01 to 20 parts by weight based on 100 parts by weight of the inorganic particle or inorganic oxide particle. Also provided are a method for preparing the negative electrode active material and a secondary battery having enhanced lifetime and high-efficiency charge/discharge properties by including the negative electrode active material.

Negative electrode material for secondary battery, method for preparing the same and secondary battery having the same

The present invention relates to a method for preparing carbon nanotubes which are capable of more effectively preparing carbon nanotubes having a uniform and fine size, and a dispersion composition of carbon nanotubes obtained using the same. The method for preparing carbon nanotube comprises the steps of: forming a dispersion comprising carbon nanotube bundles, a dispersant and a solvent; and enabling the dispersion to consecutively pass through a high pressure homogenizer, wherein the dispersant is a mixture of plural kinds of polyaromatic hydrocarbon oxides, and the carbon nanotube bundles are pulverized or disentangled while passing through a microchannel of the high pressure homogenizer under a shear force to form carbon nanotubes.

Method for preparing carbon nanotube, and dispersion composition of carbon nanotube

The present invention relates to a negative electrode for a secondary battery, an electrode assembly comprising same, and a secondary battery comprising the electrode assembly, the negative electrode comprising: a current collector; and a negative electrode active material layer on one or more sides of the current collector, wherein the negative electrode active material layer comprises an amphiphilic polymer and a negative electrode active material having graphite on which an amorphous carbon coating layer is formed.

Negative electrode for secondary battery, electrode assembly comprising same, and secondary battery

The present disclosure relates to a negative electrode active material and a secondary battery including the same, and in particular, provides a negative electrode active material particle including a core including a carbon-based active material, and a shell surrounding the core and including a polymer, wherein silicon-based active material particles are embedded in the shell, and at least a part of the silicon-based active material particles is exposed to a surface of the shell.

Negative electrode active material and secondary battery including the same

The present invention relates to a composition for enhancing immunity through inducing the expression of interferon-&#x3b2; comprising a compound represented by Formulas 1 to 8, orextract comprising the same and fractions thereof as an active ingredient, a feed additive, feed composition, pharmaceutical composition, food composition, and over-the-counter (OTC) drug composition comprising the composition, and a method for enhancing immunity through administrating the composition. A composition for inducing the expression of interferon-&#x3b2;, comprising a compound represented by Formulas 1 to 8 of the present invention,extract comprising the same, or fractions thereof as active ingredient can prevent, alleviate, or treat the diseases that can be prevented or treated by increasing the expression of interferon.

Composition for enhancing immunity containing compounds represented by chemical formulas 1-8 or sophora flavescens extract as active ingredient

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Daejeon, South Korea

Su Jin Park