Korea Institute of Energy Research

Hwan Yeong Oh

Dong Won Shin

Min Jin Kim

Hye Jin Lee

Gu Gon Park

Young Jun Sohn

Tae Hyun Yang

Byung Chan Bae

Seok Hee Park

Sung Dae Yim

Seung Gon Kim

Won Yong Lee

Tae-hyun Yang

Chang-Soo Kim

Sung-dae Yim

Gu-gon Park

Seok-hee Park

Won-yong Lee

Young-jun Sohn

Seung-gon Kim

Byungchan Bae

Chang Soo Kim

Min-jin Kim

Seung Hee Woo

Yoon Young Choi

So Jeong Lee

Sung Hee Shin

A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.

Method and apparatus for multi-stage fault diagnosis of fuel cell systems

Provided is a method for manufacturing a membrane-electrode assembly. The method includes forming an electrode layer, preparing a porous support layer, and positioning the electrode layer on each of both surfaces of the porous support layer and hot-pressing the electrode layer positioned on the both surfaces. The forming of the electrode layer incudes forming a functional layer including a hydrogen ion conductive binder resin on at least a portion of an electrode catalyst layer, and forming an electrolyte layer on at least a portion of the functional layer. The preparing of the porous support layer includes performing a pretreatment process by impregnating the porous support layer with a pretreatment composition, and the performing of the pretreatment process includes dipping the porous support layer in a first pretreatment composition and then drying the porous support layer, and dipping the porous support layer after drying in a second pretreatment composition.

Membrane-electrode assembly and method for manufacturing the same

Disclosed is a fuel cell filter including a body including therein an internal space in which a fluid flows, an inlet port provided in the body and configured to receive a fluid discharged from a fuel cell stack, a gas-water separating membrane disposed in the internal space and configured to block a liquid fluid included in a fluid absorbed in the inlet port from flowing upwards, a discharge port provided in the body and configured to externally discharge the liquid fluid blocked in the gas-water separating membrane, a water absorbent disposed in the internal space and configured to absorb water included in a gaseous fluid passing through the gas-water separating membrane, and a gas outlet port provided in the body and configured to externally discharge gas separated in the gas-water separating membrane.

Fuel cell generator system

Growing community of inventors

Daejeon, South Korea

Hwan Yeong Oh