Hyundai Motor Company

Kia Corporation

Korea Institute of Science and Technology

Yun Jeong Hwang

Byoung Koun Min

Ji Hyeon Lee

Seong Rock Jeong

Woo Soon Choi

Woong Hee Lee

Dong Ki Lee

Hyung Suk Oh

Ung Lee

Jin Sung Kim

Joon Ho Lee

Se Jin Park

Ji Hyun Song

Hyung-Suk Oh

Jun U Kim

Dahye Won

Gi Soon Park

Da Hye Won

Hee Sang An

Jai Hyun Koh

Provided are a basic electrocatalyst applied to a carbon dioxide reduction and ethylene production system, a basic electrocatalyst electrode and an apparatus each including the same, and a method of manufacturing the basic electrocatalyst electrode. The basic electrocatalyst electrode for for carbon dioxide reduction and ethylene production includes: catalyst particles each including copper hydroxide (Cu(OH)); and a basic compound. Since the basic electrocatalyst electrode has high carbon dioxide reduction performance and high ethylene selectivity, the basic electrocatalyst electrode may be applied to a reduction electrode of a carbon dioxide reduction and ethylene production apparatus and may exhibit high current density and high ethylene selectivity. The basic electrocatalyst electrode may be manufactured by a simple method, and may be applied to a large-area electrode.

Basic electrocatalyst for carbon dioxide reduction and ethylene production, electrode and apparatus each including the same, and method of manufacturing the electrode

A vehicle passenger protection system includes: a seat provided in an internal space of a vehicle; a mobile crash pad provided in the internal space of the vehicle to be movable toward the seat, wherein the mobile crash pad includes a first airbag module provided inside the vehicle and including a first airbag cushion, and a guide rail engaged to the first airbag cushion and configured to serve as a deployment path of the first airbag cushion when the first airbag cushion is deployed; and a controller operably connected to the mobile crash pad and configured to predict a vehicle accident, and move the mobile crash pad toward the seat and deploy the first airbag cushion in the mobile crash pad when an accident is expected.

Vehicle passenger protection system

Front door trim for an automobile

Crash pad for an automobile

Seat for an automobile

Proposed is an iridium alloy catalyst having reversible catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), and a hydrogen oxidation reaction (HOR) by including an iridium alloy including iridium (Ir) and nickel (Ni). The iridium alloy catalyst according to the present disclosure is rapidly converted to an iridium alloy catalyst in an oxide form and an iridium alloy catalyst in a metallic form according to applied voltage by controlling its crystallinity. Thus, even in case an oxide layer is formed after the OER, the oxidation layer disappears during the HER and HOR and the properties of an iridium metal catalyst remain, thereby maintaining HER/HOR performance.

Iridium alloy catalyst having reversible catalytic activity and preparation method thereof

Methods of manufacturing a CIGS thin film for a solar cell are provided. According to the method, a CIGS thin film having an ideal double band gap grade structure with a large particle size may be obtained by heat-treating a solution-treated CIG oxide thin film by a three-step chalcogenization process. Accordingly, performance of the solar cell may be improved.

Method for manufacturing CIGS thin film for solar cell

Provided is a CIGSSe thin film for a solar cell, a method for preparing the same, and a solar cell using the same. More particularly, the CIGSSe thin film for a solar cell shows a decrease in peak intensity of sulfur from the surface of the thin film to the local minimum value point of sulfur content in the depth direction, after the analysis based on the Auger electron spectroscopy, and thus controls the band-gap in the thin film. Therefore, the solar cell including the CIGSSe thin film shows an excellent effect in improving photoelectric conversion efficiency.

CIGSSe thin film for solar cell, preparation method thereof and its application to thin film solar cell

Disclosed are methods for producing chalcopyrite compound (e.g., copper indium selenide (CIS), copper indium gallium selenide (CIGS), copper indium sulfide (CIS) or copper indium gallium sulfide (CIGS)) thin films. The methods are based on solution processes, such as printing, particularly, multi-stage coating of pastes or inks of precursors having different physical properties. Chalcopyrite compound thin films produced by the methods can be used as light-absorbing layers for thin-film solar cells. The use of the chalcopyrite compound thin films enables the fabrication of thin-film solar cells with improved efficiency at low costs.

Methods for producing chalcopyrite compound thin films for solar cells using multi-stage paste coating

Growing community of inventors

Seoul, South Korea

Yun Jeong Hwang