Samsung Electronics Co., Ltd.

Yonsei University

Postech Academy-industry Foundation

Joon Seon Jeong

Hyun Seok Kim

Hyo Rang Kang

Dong Jin Ham

Bok Soon Kwon

Jae Sung Lee

Da Hye Park

Myung Dong Cho

Sueng Hoon Han

Gang Hong Bae

Kyung-geun Lee

Chong-sam Chung

Seung Jae Lee

Sang Ho Park

Hyun-Seok Kim

Jin-Kyung Lee

Jae Eun Kim

An-sik Jeong

Jong-hyun Shin

Yoo Seong Yang

Hyun-seok Yang

Joong-gon Kim

Noh-cheol Park

A capacitive deionization apparatus may include at least one pair of porous electrodes and a spacer structure disposed between the at least one pair of electrodes. The at least one pair of porous electrodes may include an electrode material having a surface area for the electrostatic adsorption of feed ions. The spacer structure may include an electrically-insulating material with an ion exchange group on the surface thereof. The spacer structure provides a path for flowing a fluid therethrough.

Capacitive deionization apparatus and methods of treating fluid using the same

The present disclosure relates to a spacer structure that is configured to be disposed between a pair of electrodes in a capacitive deionization apparatus so as to provide a space for flowing a fluid therethrough. The spacer structure includes a copolymer prepared by copolymerizing a mixture of a polyurethane backbone including a carboxyl group or a sulfonic acid group, an ion conductive monomer including a carboxyl group and a cation exchange group, and a second polymer including a functional group that reacts with the carboxyl group or sulfonic acid group and forms a cross-linking bond with the polyurethane backbone.

Capacitive deionization apparatus and methods of treating a fluid using the same

Disclosed are a composition for an electrode binder of a capacitive deionization apparatus including at least one a hydrophilic polymer and a bifunctional cross-linking agent having a hydroxy group or a carboxyl group at both terminal ends, and at least one anion exchange group therein, and the bifunctional cross-linking agent being cross-linkable with the at least one hydrophilic polymer, an electrode for a capacitive deionization apparatus including the composition, a capacitive deionization apparatus including the electrode, and a method of removing ions from a liquid by using the capacitive deionization apparatus.

Composition for electrode of capacitive deionization apparatus, and electrode including same

A capacitive deionization electrode may include a conductive material and a polymer on a surface of the conductive material. The polymer may have at least one functional group in a single polymer chain.

Capacitive deionization electrodes, capacitive deionization apparatuses including the same, and production methods thereof

A metal suboxide having a specific surface area of greater than or equal to about 1.5 m/g is prepared by preparing a metal suboxide precursor, and heat-treating the metal suboxide precursor.

Metal suboxide and methods of preparing same

An ion exchanger according to a non-limiting embodiment may include an open cell polymer support and a microporous polymer matrix charged within the open cell polymer support. The microporous polymer matrix includes an ion conductive polymer. The ion conductive polymer may be obtained by polymerizing monomers having at least one ion exchange functional group and at least one cross-linkable functional group with a cross-linking agent having at least two cross-linkable functional groups.

Ion exchanger, method of manufacturing the same, and ion exchange filter device and electro-deionization device including the same

An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.

Optical disc apparatus and method of driving the same

Growing community of inventors

Seoul, South Korea

Joon Seon Jeong