Lg Chem, Ltd

Lg Energy Solution, Ltd.

Woo Ha Kim

Suk Ky Chang

In Cheon Han

Se Woo Yang

Min Soo Park

Sung Soo Yoon

No Ma Kim

Sang Hoon Choy

Jeong Min Ha

Yoon Tae Hwang

Seung Joon Park

In Seong Kim

Hyeon Sik Choi

Min Jin Ko

Dong Hyun Kim

Wook Hwan Kim

Je Gwon Lee

Song Ho Jang

Jang Soon Kim

Jeong Woo Shon

Se Ra Kim

Houng Sik Yoo

Hyo Sook Joo

Ki Seok Jang

Young Seok Kim

Joo Yul Baek

Sung Pil Yoon

Byoung Bae Lee

Nam Jeong Lee

Bong Hyun Jeong

Jun Muk Lim

Ki Youl Lee

Ji Hee Yoon

Joo Yong Park

Jang Bae Kim

Hye Jin Sim

Jae Gwan Lee

Il Jae Moon

Kyoung Hun Kim

Im Goo Choi

Hyeon Jeong Kang

Ji Hye Yang

Joong Hoon Lee

Hyo Jin Jeong

Seung Min Yoo

Byoung Soo Lee

Geun Hee Lee

Seong Keun Jang

Byeong Gyu Cho

No Ma 1009-104 Hanwa Ggumegreen Kim

Suk Ky 7-401 Science Vill Chang

The present technology relates to an adhesion strength measurement system for a wet electrode specimen that can evaluate the adhesion strength of an electrode specimen impregnated with an electrolyte solution, and an adhesion strength measurement method for a wet electrode specimen using the same. The adhesion strength measurement system includes: a test substrate; an electrode specimen attached to the test substrate; a fixing jig configured to fix the test substrate so that the electrode specimen attached to the test substrate is immersed in an electrolyte solution; and an adhesion strength measurement unit configured to measure a force at which a mixture layer of the electrode specimen is peeled off by applying a tensile force to the gripped electrode specimen, the adhesion strength measurement unit including a grip part configured to grip one region of the electrode specimen.

Adhesion strength measurement system for wet electrode specimen and adhesion strength measurement method for wet electrode specimen using the same

The present technology relates to a manufacturing method for an electrode binder, comprising a step of dissolving pelletized polyvinylidene fluoride (PVDF) in a solvent; and an electrode assembly comprising the electrode binder. The present invention may provide an electrode assembly which has a low content of impurities in a binder solution, is capable of increasing dispersibility of an electrode active material, and exhibits excellent binding force.

Manufacturing method for electrode binder and electrode assembly comprising same electrode binder

Provided is a conductive material dispersion comprising single-walled carbon nanotubes, a dispersant, a dispersion aid, and a dispersion medium, wherein the dispersant comprises polyvinyl butyral and hydrogenated nitrile butadiene rubber, and the dispersion aid comprises a compound represented by FormulaA-(R)  [Formula In Formula 1, A is a structure having a carbon number of 16 to 50 carbon number and comprising four or more aromatic rings and nitrogen, R is a structure comprising an anionic functional group, and n is an integer of 1 to 5.

Conductive material dispersion

The present invention relates to a method of reusing a positive electrode material, and more particularly, the method includes: inputting a positive electrode for a lithium secondary battery comprising a current collector, and a positive electrode active material layer formed on the current collector and including a first positive electrode active material, a first binder and a first conducting agent, into a solvent; separating at least a portion of the positive electrode active material layer from the current collector; adding second binder powder to the solvent and performing primary mixing a resulting mixture; and preparing a positive electrode material slurry by adding a second positive electrode active material and a second conducting agent to the solvent and performing secondary mixing a resulting mixture.

Method of reusing positive electrode material

Provided is a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition may be applied as a light diffusing or scattering material to various display devices or lighting apparatuses.

Pressure-sensitive adhesive composition

Provided are a pressure-sensitive adhesive composition for a touch panel, a conductive film, a touch panel and a pressure-sensitive adhesive film. The exemplary pressure-sensitive adhesive composition for a touch panel, the conductive film or the pressure-sensitive adhesive film has excellent durability and optical properties such as transparency. In addition, such physical properties are stably maintained under severe conditions. Particularly, a pressure-sensitive adhesive layer is attached to a conductor thin film, and thus resistance change of the conductor thin film is effectively inhibited even when the conductor thin film is exposed to the severe conditions. Therefore, the pressure-sensitive adhesive composition may be effectively used to manufacture a touch panel.

Pressure sensitive adhesive composition for touch panel

Pressure-sensitive adhesive composition for touch panel

Provided are an electrode binder for a secondary battery including an amine-based compound expressed by Chemical Formula 1 below and water-based binder particles including at least one carboxyl group as an end group, a method of preparing the same, and an electrode for a secondary battery including the electrode binder for a secondary battery 

Electrode binder for secondary battery and electrode for secondary battery comprising the same

The present invention relates to an adhesive sheet, a manufacturing method thereof, an optical filter and a plasma display panel. The present invention provides an adhesive sheet having an excellent base adhesion property through a hydroxyl group applied to a base film and an isocyanate-based compound contained in an adhesive layer through a corona processing. Accordingly, the present invention provides an adhesive sheet having an excellent base adhesion property and improved high temperature stability by using a carboxyl group-containing acryl-based copolymer having a high glass transition temperature. Further, the adhesive sheet of the present invention contains a siloxane-based compound if needed, thus preventing an initial peeling force from being increased. Accordingly, the present invention provides an adhesive sheet with an excellent base adhesion property, high temperature stability, adhesive property and reworkability to glass, and provides a manufacturing method thereof, an optical filter containing the same and a plasma display panel.

Adhesive sheet, manufacturing method thereof, optical filter and plasma display panel

The present invention relates to an acrylic pressure sensitive adhesive composition comprising (meth)acrylic copolymers including alkyl(meth)acrylic acid ester monomer having 1&#x2dc;12 carbon atoms of alkyl group, characterized in that the gel content is 10&#x2dc;55%, the swelling ratio is 30&#x2dc;110, the weight average molecular weight of sol eluted from the adhesive by ethyl acetate is at least 800,000, the molecular weight distribution is 2.0&#x2dc;7.0; and a polarizer and a liquid crystal display comprising the above composition show excellent durability under a high temperature and humidity condition, and can improve the light leakage phenomenon and provide excellent operability at the time of manufacturing polarizer by effectively providing high modulus and stress release property.

Acrylic pressure-sensitive adhesive composition for polarizing film

The present invention relates to a pressure-sensitive adhesive composition, and a polarizer and a liquid crystal display (LCD) device using the pressure-sensitive adhesive composition, and more particularly, to a pressure-sensitive adhesive composition including (A) an acrylic copolymer and (B) a liquid optically-anisotropic compound having a mesogen core in its structure. The liquid optically-anisotropic compound having a mesogen core in its structure according to the present invention has superior solubility and compatibility with pressure-sensitive adhesive resin, and thus the pressure-sensitive adhesive composition including the liquid optically-anisotropic compound can relax stress caused by shrinkage of the polarizer and effectively compensate negative birefringence. Therefore, the polarizer and the LCD device using the pressure-sensitive adhesive composition can prevent light leakage originating from stress concentration in spite of long-term use.

Adhesive composition, and polarizing plates and LCDs utilizing the adhesive composition

The present invention relates to an acrylic pressure sensitive adhesive composition comprising (meth)acrylic copolymers including alkyl(meth)acrylic acid ester monomer having 2&#x2dc;14 carbon atoms of alkyl group, characterized in that the gel fraction is 10&#x2dc;55%, the swelling ratio is 30&#x2dc;110, the weight average molecular weight of sol eluted from the final adhesive by ethyl acetate is at least 800,000, comprising low molecular weight molecule having the maximum 100,000 of weight average molecular weight by 10 &#x2dc;40 wt % of the total sol component; and the above composition show excellent durability under a high temperature and/or humidity condition, and can improve the light leakage phenomenon and provide excellent operability at the time of manufacturing polarizer by effectively providing high modulus and stress release property.

Disclosed herein are an adhesive sheet comprising a cured acrylic polymer, hollow polymeric microspheres dispersed and ruptured in the cured acrylic polymer, and hollow parts formed by rupturing the hollow polymeric microspheres dispersed in the cured acrylic polymer, and a preparation method thereof.

Adhesive sheet comprising hollow parts and method for preparing the same

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Daejeon, South Korea

Woo Ha Kim