Korea Institute of Energy Research

Churl-Hee Cho

Jeong-gu Yeo

Young-soo Ahn

Dong-Kook Kim

Hong-Soo Kim

Do-Kyung Kim

Nam-Jo Jeong

Tae-Hwan Kim

Hyun-Seol Park

Ko-Yeon Choo

Jeong-Ku Yeo

Jeong Min Hong

Eunju Lee

Chang-Kook Hong

Chong-Su Park

Hyeong-seon Oh

Sang-youn Oh

Se-Hee Kim

Seung-Hyun Shin

Jae-Sik Ryu

Kuck-tack Chue

The present invention uses the principles of electrochemical ion absorption (charging) and ion desorption (discharge), and relates to a continuous flow-electrode system, a high-capacity energy storage system, and a water treatment method using the same, in which high-capacity electric energy is stored as electrode materials of a slurry phase and electrolytes simultaneously flow in a successive manner within a fine flow channel structure formed on an electrode. More specifically, the present invention relates to a continuous flow-electrode system, an energy storage system, and a water treatment method, wherein electrode active materials consecutively flow in a slurry state whereby a high capacity is easily obtained without enlarging or stacking electrodes.

Continuous flow-electrode system, and high-capacity power storage and water treatment method using the same

A method of preparing transparent or nontransparent silica aerogel granules. The method includes forming a granular wet gel by spraying a silica sol into alcohol, the silica sol being prepared by mixing a water glass solution or an opacifier-containing water glass solution with an inorganic acid solution, forming a granular alcohol gel through gelation aging and solvent substitution of the granular wet gel in alcohol, hydrophobically modifying the surface of the granular alcohol gel using an organic silane compound, and drying the surface modified gel at ambient pressure or in a vacuum. The method may prepare silica aerogel granules in a short period of time through heat treatment at a relatively low temperature and at ambient pressure or in a vacuum, thereby ensuring excellent economic feasibility, continuity and reliability, suited for mass production.

Method of preparing silica aerogel granules

Disclosed herein is a method of manufacturing inorganic hollow yarns, such as cermets, oxide-non oxide composites, poorly sinterable non-oxides, and the like, at low costs. The method includes preparing a composition comprising a self-propagating high temperature reactant, a polymer and a dispersant, wet-spinning the composition through a spinneret to form wet-spun yarns, washing and drying the wet-spun yarns to form polymer-self propagating high temperature reactant hollow yarns, and heat-treating the polymer-self propagating high temperature reactant hollow yarns to remove a polymeric component from the polymer-self propagating high temperature reactant hollow yarns while inducing self-propagating high temperature reaction of the self-propagating high temperature reactant to form inorganic hollow yarns. The composition comprises 45&#x2dc;60 wt % of the self-propagating high temperature reactant, 6&#x2dc;17 wt % of the polymer, 0.1&#x2dc;4 wt % of the dispersant, and the balance of an organic solvent.

Inorganic hollow yarns and method of manufacturing the same

The present invention relates to a method of manufacturing a mat containing aerogel and to a mat manufactured using this method. A method of manufacturing a mat containing silica aerogel according to an aspect of the invention includes: (S1) producing a wet gel by mixing water glass and alcohol in a reactor; (S2) modifying a surface of the wet gel by adding an organic silane compound and an organic solvent to the reactor and mixing; (S3) separating a upper liquid from a solution in the reactor and impregnating a fibrous matrix with the upper liquid; and (S4) drying the fibrous matrix impregnated with the upper liquid. According to an aspect of the invention, a mat containing silica aerogel can be manufactured using only water glass as raw material, even when applying the drying process in an ambient environment, without using expensive materials or supercritical apparatus.

Aerogel mat and manufacturing method thereof

Disclosed herein is a method for producing a sheet including a silica aerogel, the method including (S1) gelling a water glass solution in a mixture of an alcohol and water to prepare a wet gel, (S2) hydrophobically modifying the surface of the wet gel with a non-polar organic solvent, an organosilane compound and an alcohol, (S3) dissolving the hydrophobically modified silica gel and a polymer in an aprotic organic solvent to prepare an electrospinning solution, and (S4) electrospinning the electrospinning solution to produce a fiber web including a silica aerogel, and a sheet in which a polymer and a silica aerogel coexist in the form of a fiber.

Method for producing sheets including fibrous aerogel

Growing community of inventors

Daejeon, South Korea

Churl-Hee Cho