Electronics and Telecommunications Research Institute

Gachon University of Industry-Academic Cooperation Foundation

Cj Cheiljedang Corporation

Bit Na Kim

In-Kyu You

In Gyoo Kim

Tae-young Kim

Sunghoon Hong

Hyun-Tak Kim

Yong Suk Yang

Sungwoo Jo

Seok Hun Kang

Jin Woo Jeon

Sung-Hoon Jung

Ji Hyun Kang

Seung-Jun Park

Ji Hwan Sul

Mi Kyoung Chae

The present invention relates to a current sensor which measures alternating electromagnetic wave and a current breaker using the same, and the current sensor for alternating current is characterized in that it includes a sensor part arranged at a separation distance from the power wire through which alternating current is flowing; and a means of detecting alternating current by measuring the electromagnetic wave generated across the above sensor part by the electromotive force induced by the alternating current flowing through the above power wire, and in that the above means of detecting alternating current includes an amplifier.

Current sensor for measuring alternating electromagnetic wave and a current breaker using the same

A method for preparing a three-dimensional graphene structure, and an energy storage device are provided, the method including forming a graphene precursor by heating a carbohydrate and a gas generator, forming a graphene structure having a cavity therein by carbonizing the graphene precursor, and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure, and are connected with the cavity.

Method for preparing three-dimensional graphene structure and energy storage device

Disclosed are an apparatus for manufacturing electrodes and a method of manufacturing electrodes. The method of manufacturing electrodes includes providing a metal substrate having first and second surfaces opposite to each other, performing a patterning process on the first surface of the metal substrate, coating an electrode material on the first surface of the metal substrate, after the patterning process, and irradiating the electrode material, which is coated on the metal substrate, with light. The patterning process includes forming a plurality of holes to penetrate the metal substrate or forming a plurality of grooves to have a shape recessed from the first surface toward the second surface.

Apparatus and method for manufacturing electrodes

Growing community of inventors

Daejeon, South Korea

Bit Na Kim