University-Industry Cooperation Group of Kyung Hee University

Industry-University Cooperation Foundation Hanyang University

Hee Jae Hwang

Do Hwan Kim

Joo Sung Kim

Duk Hyun Choi

Dukhyun Choi

Eun Song Jee

Yeonseok Jeong

Jiseop Yoo

The present invention relates to an triboelectric nanogenerator using an ionic elastomer that increases internal electric capacity and allows a large amount of electric charge to be located on a surface to generate a large amount of electrical energy. The triboelectric nanogenerator according to the present invention includes a first electrode; an ionic elastomer disposed on the first electrode and including an elastomer and an ionic liquid; a second electrode disposed to be spaced apart from the first electrode and electrically connected to the first electrode; and an insulator disposed under the second electrode, selectively contacting the ionic elastomer, and formed of a material that has a negative charge compared to the ionic elastomer. In this case, the ionic elastomer and the insulator are brought into contact with each other or are separated from each other by external force, and electrical energy is generated between the first and second electrodes when the ionic elastomer and the insulator are brought into contact with each other and separated from each other.

Triboelectric nanogenerator using ionic elastomer

Disclosed is a wire sensing apparatus including a vibrable wire part; a generator configured to generate electrostatic force through interference with the wire part to generate electric energy; and a sensor part connected to at least one of the wire part and the generator and configured to measure a resonance frequency of the wire part to detect a state of an object. According to such a configuration, a sensor applicable to various conditions can be provided at low cost.

Wire sensing apparatus

Growing community of inventors

Yongin-si, South Korea

Hee Jae Hwang