Hanwha Total Petrochemical Co., Ltd.

Samsung Total Petrochemicals Co., Ltd.

Do Hoon Lee

Chang Hyun Choi

Jae Yong Hyun

Ho Sik Chang

Dae Ho Park

Ji Na Yoo

Ki Se Kim

Steve Park

Sung Kyo Jung

Jin A Yoo

Wan Keun Kim

There is provided an organic/inorganic complex coating porous separator including a porous substrate, and an organic/inorganic complex coating layer formed in a single layer or multiple layers on a single surface or both surfaces of the porous substrate or at least a part of a pore portion of the porous substrate using a coating solution comprising a binder dispersed or suspended in a certain size and selectively comprising inorganic particles, and a secondary battery including the same. According to the present invention, since the coating solution comprising the binder dispersed in a certain size or less in a solvent is coated/dried on the porous substrate, a organic/inorganic complex coating porous separator having excellent air permeability and adhesive strength and a secondary battery including the organic/inorganic complex coating porous separator are provided.

Organic/inorganic composite coating porous separator and secondary battery element using same

There is provided a separator used in an electrochemical device and more particularly, to a porous separator in which an organic/inorganic complex coating layer is applied to a porous substrate, a method for preparing the same, and an electrochemical device using the same.

Porous separator with water-based organic/inorganic complex coating, a method for preparing the same, and an electrochemical device using the same

The provided are a polylactic acid-polyalkylene glycol copolymer and a composition comprising the same which have excellent crystallization rate, wherein the polylactic acid-polyalkylene glycol copolymer is prepared by melt-reacting polylactic acid with polyalkylene glycol of which one end group is substituted with a functional group and has improved eco-friendliness, injection moldability, and excellent heat resistance which makes it to be suitably applied to various molded articles requiring great heat resistance, such as disposables, kitchen utensils and containers, electric-electronic parts and automobile parts.

Polylactic acid-polyalkylene glycol copolymer with fast crystallization rate and composition comprising the same

There is provided a light-emitting device with enhanced luminescence efficiency, which simultaneously exhibits excitation enhancement and emission enhancement of a light-emitting material by controlling two or multiple surface plasmon resonance bands of anisotropic metal nanoparticles to be formed in a near ultraviolet light range and a visible light range and optimizing overlapping of a wavelength of a near ultraviolet or blue light source with an absorption wavelength and an emission wavelength of the light-emitting material. There is also provided a light-emitting device with improved color gamut and luminance, which simultaneously exhibit emission enhancement of different types of light-emitting materials by controlling two or multiple surfaces plasmon resonance bands of anisotropic metal nanoparticles to be overlapped with absorption and emission wavelengths of two or more light-emitting materials having different emission wavelengths from one another.

Light conversion light-emitting device with enhanced luminescence efficiency using anisotropic metal nanoparticles

Provided is a microporous separator for a lithium secondary battery having shutdown properties wherein the separator comprises a propylene random copolymer which has a melt index of 0.5-10 g/10 minutes and comprises one or more species of comonomers in the content of 0.1-8 wt %.

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Seosan-si, South Korea

Do Hoon Lee