Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Hyundai Motor Company

Kia Motors Corporation

Seoul National University

Ki Ung Jeon

Yeon Sik Jung

Won Jung Kim

Jung Keun Yoo

Ki Suk Kang

Soon C Choi

Youjung Song

In Sang Hwang

Jae Beom Jeon

A fuel cell may include a fuel supply unit for supplying hydrogen to a fuel cell stack; an air supply unit for supplying air to the fuel cell stack; and the fuel cell stack that generates energy using hydrogen and air supplied from the fuel supply unit and the air supply unit, wherein the fuel cell stack has a mesh structure and comprises a conductive polymer electrode containing about 0.1 to 1 wt % of polyethylene oxide (PEO) having a molecular weight of about 1,000 to 6,000 kg/mol.

Fuel cell and method of manufacturing the same

The present invention provides an all-solid ion battery having improved stability and power characteristics and comprising: a powder-form solid electrolyte; a powder-form electrode active material; a first conductive polymer coating film coated on at least a portion of the solid electrolyte and capable of transporting ions; and a second conductive polymer coating film coated on at least a portion of the electrode active material and capable of transporting ions and electrons.

All-solid ion battery

A liquid crystal projector which splits white light projected from a light source and light-intensity-modulates and synthesizes the split light components to project the synthesized light components onto a screen. The projector includes a dichroic mirror having a light transmittance characteristic in which two color light components of the three color light components being adjacent in spectrum are transmitted, and a dichroic mirror having a light transmittance characteristic in which the remaining color light excluding the two color light components is reflected. The location of the light source is appropriately modified inside the projector. Accordingly, the production cost is reduced, the heat produced by the light source is not exhausted toward the viewers and the projector is miniaturized.

Liquid crystal projector

Growing community of inventors

Seoul, South Korea

Ki Ung Jeon