Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Sungkyunkwan University

Industry-university Cooperation Foundation Hanyang University

Kookmin University

Donghee Industrial Co., Ltd.

Jeong Hee Park

Chang Ha Lee

Kyoung Ku Ha

Byeong Seung Lee

Hyun Yoo Kim

Hyuck Roul Kwon

Hyunyoo Kim

Ho Seok Park

Jong Myeong Kim

Harpalsinh Hardevsinh Rana

Sang Woo Kim

Tae Young Kim

Tae Ho Kim

Young Dug Kim

Duck Whan Kim

Sung Il Kim

Yong Sun Park

Myung Ju Jung

Jong Sung Lee

Sae Hoon Oh

Duk Joon Kim

Ji Han Lee

Jung Pyo Hong

Byung Hwa Oh

Eul Ho Son

Sang Hoon Seo

Moon Sung Park

Kang-Ho Shin

Myung Ju Ju Jung

Seon Hwa Kim

Jae Hwan Seo

In Seok Lee

An open-cathode-type fuel cell system includes hollow fiber membranes, through which moisture contained in unreacted hydrogen discharged from a fuel cell stack is transferred to air flowing into the fuel cell stack, and an aerial vehicle using the same. The open-cathode-type fuel cell system includes a fuel cell stack configured to generate electricity through a reverse electrolysis reaction using hydrogen and air supplied from the outside, a humidifying structure disposed on one side of the fuel cell stack in order to transfer moisture included in unreacted hydrogen, discharged from the fuel cell stack, to air flowing into the fuel cell stack, and a cooling fan disposed on the other side of the fuel cell stack in order to discharge unreacted air, discharged from the fuel cell stack, and cooling air to the outside. Accordingly, the performance of the air-cooled fuel cell system may be improved.

Open-cathode-type fuel cell system and aerial vehicle using the same

An embodiment air-cooled fuel cell includes a cell stack, an air inlet manifold configured to allow air to flow into the cell stack therethrough, an air outlet manifold configured to allow the air to flow out of the cell stack therethrough, and a manifold opening/closing controller disposed at the air inlet manifold or the air outlet manifold and configured to allow or interrupt inflow or outflow of the air based on an operation state of the cell stack.

Air-cooled fuel cell

Lignin gel-based electrolyte is disclosed. The lignin gel-based electrolyte includes a lignin polymer network containing lignin molecules and a crosslinking agent to crosslink the lignin molecules; and liquid electrolyte contained within the lignin polymer network. The lignin gel-based electrolyte may have high ionic conductivity and maintain excellent mechanical stability.

Lignin gell electrolyte, method of the lignin gell electrolyte, and energy storing apparatus including the lignin gell electrolyte

An apparatus for regulating pressure of exhaust gas of a fuel cell system includes porous foam mounted in an exhaust tube and having a plurality of pores therein and a regulator that compresses or expands the porous foam to regulate a differential pressure of the exhaust gas flowing through the exhaust tube.

Apparatus for regulating pressure of exhaust gas of fuel cell system

A connector system includes a first connector configured to be electrically connected to a predetermined device required for air discharge and to introduce air discharged from the predetermined device into the first connector, a first connection line surrounding a first cable electrically connected to the first connector, one side of the first connection line being connected to the first connector, and a second connector connected to an opposite side of the first connection line and electrically connected to the first cable, wherein the first connector, the first connection line, and the second connector are configured to communicate with each other such that the air introduced into the first connector is discharged through the second connector after passing through the first connection line.

Connector system

Disclosed is a black phosphorus-polymer composite solid electrolyte including a polymer network structure in which nanofibers made of a second polymer material are connected to each other; a first polymer material received in the polymer network structure and having ionic conductivity; black phosphorus dispersed in the first polymer material, wherein the black phosphorus has an oxygen containing functional group; and a lithium salt compound contained in the first polymer material.

Black phosphorus-polymer solid electrolyte, production method thereof, and secondary battery including the electrolyte

An air control valve for a fuel cell vehicle includes: a valve housing having a first port and a second port; a first rotary shaft rotatably mounted in the valve housing and configured to be rotated by a driving source; a first valve member connected to the first rotary shaft and configured to selectively open or close the first port by rotating about the first rotary shaft; a second rotary shaft mounted in the valve housing so as to be rotatable relative to the first rotary shaft; a second valve member connected to the second rotary shaft and configured to selectively open or close the second port by rotating about the second rotary shaft; and a spring member connected, at one end thereof, to the first rotary shaft and connected, at the other end thereof, to the second rotary shaft, thereby improving stability and reliability.

Air control valve for fuel cell vehicle

A motor for an air compressor is provided. The motor includes a stator including a first coil to generate a magnetic flux for driving the motor and a second coil positioned in a space the same as a space for the first coil to increase an inductance, and a rotator to mutually interact with the stator to rotate.

Motor for air compressor

A valve device includes: a valve housing having a valve passage connected with an air flow passage; a valve disk rotatably disposed inside the valve housing through a valve driver and changing air flow cross-section of the valve passage; and a porous member installed at the valve disk and positioned in an open section between the valve disk and the valve passage.

Driving pressure adjusting valve device for fuel cell system

A humidifying device, which exchanges moisture between air supplied from an air compressor and air exhausted from the fuel cell, for a fuel cell, includes: a housing main body; at least one humidifying membrane module disposed in the housing main body; and a valve assembly which is disposed in the housing main body and adjusts a supply amount of exhaust air flowed into the at least one humidifying membrane module based on a predetermined supply amount of supply air flowed into the at least one humidifying membrane module.

Humidifying device for fuel cell

An air shut-off valve apparatus for a fuel cell system is provided. The apparatus includes a valve body having an inlet-side air passage through which supply air flows and an outlet-side air passage through which exhaust air flows. A valve flap is installed in the valve body to open or close the inlet-side air passage and the outlet-side air passage. An inlet-side check valve is opened when pressure of the supply air is greater than or equal to a predetermined pressure, to guide the supply air into the fuel cell stack through the inlet-side air passage even while the valve flap is closed. An outlet-side check valve is opened when pressure of the exhaust air is greater than or equal to a predetermined pressure, to guide the exhaust air released from the fuel cell stack to flow through the outlet-side air passage even while the valve flap is closed.

Air shut-off valve apparatus for fuel cell system

An air shut-off valve apparatus for a fuel cell system and a method of controlling the same are provided. In particular, hydrogen injected into a fuel cell stack is discharged by being diluted with external air when starting the fuel cell system. The apparatus includes a valve body that has an inlet air path connected to a cathode of the fuel cell stack and through which air injected into the fuel cell stack flows, and an outlet air path through which air discharged from the fuel cell stack flows. A bypass body is provided and includes a bypass air path that connects the inlet air path and the outlet air path and a valve flap is disposed at the valve body and opens and closes the inlet and outlet air paths at a first side thereof, and the bypass air path at a second side thereof.

Air shut-off valve apparatus for fuel cell system and method of controlling same

An apparatus and a method for controlling a humidification amount of a membrane humidifier for a fuel cell are provided. The humidification amount of the membrane humidifier relative to air supplied to a stack is changed by adjusting a difference in partial pressure of moisture between the inside and the exterior of a hollow fiber membrane that constitutes the membrane humidifier for a fuel cell.

Apparatus and method for controlling humidification amount of membrane humidifier for fuel cell

Disclosed herein is an air shut-off valve for a fuel cell system that can completely close an air passage () communicating with a cathode of a fuel cell stack, even though a butterfly-type valve is employed, upon the halt of operation of the fuel cell system, thereby greatly improving the durability of the fuel cell stack.

Growing community of inventors

Gyeonggi-do, South Korea

Jeong Hee Park