Korea Institute of Science and Technology

Industry-university Cooperation Foundation Sogang University

Samsung Sdi Co., Inc.

Sogang University Research Foundation

Hyundai Motor Company

Kia Motors Corporation

Goldstar, Co., Ltd.

Hee-Woo Rhee

Min-Kyu Song

Yong-Tae Kim

Chung Y Kim

Byung-Won Cho

Won-Il Cho

Ho-Jin Kweon

Hyung-Sun Kim

Jai Kyeong Kim

You-Mee Kim

Young-Taek Kim

Inseok Hwang

Un-Sek Kim

Ki-Hyun Kim

Jin Ho Park

Hyun-Joong Kim

Bum Suk Kim

JungMin Lee

Jin-Kyu Lee

Jae-Jin Shin

Kwang Min Kim

Kook Heon Char

Kyung Sik Min

Bongjin Moon

Sung-Kyu Min

Kyung-Suk Yun

Bo Ra Shin

Do Young Yoon

Sung-Min Cho

Hyun Sang Choi

Seong-Gyu Min

Eun Bee Kim

Chun-Mo Yang

Seung Bae Park

Se Jung Park

The present disclosure relates to a reactive porogen using cyclic organic polyol and an ultra low dielectric film prepared using the same, and more particularly, to novel cyclic organic polyol as a cyclic organic polyol compound which can be completely pyrolyzed at a temperature of 500&#xb0; C. or less, does not leave carbon residue during a heat treatment if an end hydroxyl group of the cyclic organic compound is substituted by a functional group of alkylalkoxysilane and then used as a reactive porogen, and is involved in a sol-gel reaction of organic silicate and suppresses phase separation and thus forms pores having a uniform size and has excellent mechanical properties as compared with a porosity, a reactive porogen using the ash-free cyclic organic polyol, and an ultra low dielectric film prepared using the same.

Ash-free cyclic organic polyol-based reactive porogens and nanoporous ultra low dielectric film by using the same

The present disclosure provides a solid polymer electrolyte composition including a polymer matrix, an organic solvent, and an additive agent containing polyhedral silsesquioxane, and also provides a lithium secondary battery including the same.

Solid polymer electrolyte composition and lithium secondary battery including the same

The polymer electrolyte membrane of the present invention includes a proton conductive cation exchange resin, a non-proton-conductive polymer, and an inorganic additive. The inorganic additive is adapted to inhibit a phase separation between the proton conductive cation exchange resin and the non-proton-conductive polymer.

Polymer membrane and membrane-electrode assembly for fuel cell and fuel cell system comprising same

The present invention relates to a production method for an ultra-low-dielectric-constant film, in which ratios are optimised in a mixed solution having a matrix consisting of a poly (alkyl silsesquioxane) copolymer and a porogen represented by Chemical formula 1, and in which this mixed solution is subjected to ultraviolet curing during a heat treatment. The ultra-low-dieletric-constant film of the present invention can be used as an intermediate insulating film for next generation semiconductors instead of the SiO2 dielectric films currently used, since pores of from 1 to 3 nm are uniformly distributed at from 10 to 30% and a very high degree of mechanical elasticity of from 10.5 to 19 GPa is achieved at a low dielectric constant from 2.12 to 2.4.

Production method for an ultra-low-dielectric-constant film, and an ultra-low-dielectric-constant film produced thereby

The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.

High temperature proton exchange membrane using ionomer/solid proton conductor, preparation method thereof and fuel cell containing the same

A polymer electrolyte membrane for a direct oxidation fuel cell includes a porous polymer supporter having a plurality of pores, and a hydrocarbon fuel diffusion barrier layer which is formed on the polymer supporter and contains an inorganic additive dispersed in a cation exchange resin.

Polymer electrolyte for a direct oxidation fuel cell, method of preparing the same, and direct oxidation fuel cell comprising the same

This invention is related to a reactive nanoparticular cyclodextrin derivative useful as a porogen and a low dielectric matrix, with excellent mechanical properties and uniformly distributed nanopores, manufactured by sol-gel reaction of the above reactive cyclodextrin. Furthermore, this invention also is related to an ultralow dielectric film, with uniformly distributed nanopores, a relatively high porosity of 51%, and a relatively low dielectric constant of 1.6, manufactured by thin-filming of the conventional organic or inorganic silicate precursor by using the above reactive nanoparticular cyclodextrin derivative as a porogen.

Reactive cyclodextrin derivatives as pore-forming templates, and low dielectric materials prepared by using the same

The present invention relates to a multi-layered, UV-cured polymer electrolyte and lithium secondary battery comprising the same, wherein the polymer electrolyte comprises: A) a separator layer formed of polymer electrolyte, PP, PE, PVdF or non-woven fabric, wherein the separator layer having two surfaces; B) at least one gelled polymer electrolyte layer located on at least one surface of the separator layer comprising: a) polymer obtained by curing ethyleneglycoldi(meth)acrylate oligomer of the formula (I) by UV irradiation: CH&#x2550;CRCOO(CHCHO)COCR&#x2550;CHwherein, Rand Rare independently hydrogen or methyl group, and n is a integer of 3&#x2013;20; and b) at least one polymer selected from the group consisting of PVdF-based polymer, PAN-based polymer, PMMA-based polymer and PVC-based polymer; and C) organic electrolyte solution in which lithium salt is dissolved in a solvent.

Multi-layered, UV-cured polymer electrolyte and lithium secondary battery comprising the same

The present invention relates to a UV-cured multi-component polymer blend electrolyte, lithium secondary battery and their fabrication method, wherein the UV-cured multi-component polymer blend electrolyte, comprises: A) function-I polymer obtained by curing ethyleneglycoldi-(meth)acrylate oligomer of formula 1 by UV irradiation, CH&#x2550;CRCOO(CHCHO)COCR&#x2550;CH(1) wherein, Rand Rare independently a hydrogen or methyl group, and n is an integer of 3-20; B) function-II polymer selected from the group consisting of PAN-based polymer, PMMA-based polymer and mixtures thereof; C) function-III polymer selected from the group consisting of PVdF-based polymer, PVC-based polymer and mixtures thereof; and D) organic electrolyte solution in which lithium salt is dissolved in a solvent.

UV-cured multi-component polymer blend electrolyte, lithium secondary battery and their fabrication method

The present invention relates to a composite ion-exchange membrane that can exhibit good conductivity at high temperatures, methods to produce the polymer membrane, membrane-electrode assemblies that comprise one or more of such polymers, and polymer electrolyte fuel cells that comprise one or more of such electrode assemblies.

Composite ion-exchange membrane, fabrication method of the same, and membrane-electrode assembly, and polymer electrolyte fuel cell having the same

Disclosed is an electric double-layered capacitor fabricated by inserting a UV-curing gel type polymer electrolyte having excellent characteristics of ion conductivity, adhesion to electrode, compatibility with an organic solvent electrolyte, mechanical stability, permeability, and applicability to process, between electrodes. Accordingly, the present invention increases its storage capacitance, reduces self-discharge of electricity, and decreases inner cell resistance.

Electric double-layered capacitor using UV-curing gel type polymer electrolyte

A high molecular humidity sensor in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes excellent. The sensor is a structure in which polypyrrole doped with dodecylsulfate anion DS.sup.- is stuck in film form on the surface of a fine electrode, and cations Na.sup.+, K.sup.+ are permeated to said polypyrrole whereby salt is formed and humidity sensibility is exhibited in the region of 10.sup.4 -10.sup.6 .OMEGA., and humidity sensing speed becomes within several tens of seconds to several minutes.

High molecular humidity sensor and manufacturing method thereof by

A high molecular humidity sensor and manufacturing method thereof in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes excellent. The high molecular humidity sensor of the invention is characterized in that it is a structure in which polypyrrole doped with dodecylsulfate anion DS.sup.- is stuck in film form on the surface of fine electrode, and cations Na.sup.+, K.sup.+ are permeated to said polypyrrole whereby salt is formed, and humidity sensibility is exhibited in region of 10.sup.4 -10.sup.6 .OMEGA., and humidity sensing speed becomes within several tens seconds to several minutes.

There is provided a process for preparing five-membered heterocyclic polymers represented by a formula (II) which comprises electrochemically polymerizing five-membered heterocyclic monomers of formula (I) in the presence of tetrabutylammonium alkylsulfate as an electrolyte and an organic solvent, wherein formulas (I) and (II) are represented by the formulas ##STR1## and wherein, M represents nitrogen or sulfur, provided that hydrogen is deleted when M is sulfur;

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Seoul, South Korea

Hee-Woo Rhee