摘要:
A direct methanol fuel cell (DMFC) comprising: a membrane electrode assembly (MEA) including an anode, a cathode, and a membrane disposed therebetween; a spacer surrounding the anode, having supply holes to supply methanol to the anode; and a flow control member to control the supply of the methanol. The flow control member includes a porous support and/or a methanol transmissive layer. The methanol transmissive layer comprises a fluorine polymer, a hydrocarbon polymer, or a combination thereof.
摘要:
A direct methanol fuel cell (DMFC) comprising: a membrane electrode assembly (MEA) including an anode, a cathode, and a membrane disposed therebetween; a spacer surrounding the anode, having supply holes to supply methanol to the anode; and a flow control member to control the supply of the methanol. The flow control member includes a porous support and/or a methanol transmissive layer. The methanol transmissive layer comprises a fluorine polymer, a hydrocarbon polymer, or a combination thereof.
摘要:
A method of measuring methanol vapor concentration on a real-time basis and a methanol vapor concentration measuring apparatus used in fuel cells. The method of measuring methanol vapor concentration involves using an absorption spectrometry technique, that is, after measuring intensities I0 and I1 of light of a laser before and after passing through a space filled with methanol vapor and into which light is irradiated, the methanol vapor concentration is calculated by substituting the intensities I0 and I1 into an equation defined as I1/I0=exp (K·L·C), where K represents the absorption coefficient, L represents the length of the space through which the laser passes, and C represents the methanol vapor concentration.
摘要:
A method of measuring methanol vapor concentration on a real-time basis and a methanol vapor concentration measuring apparatus used in fuel cells. The method of measuring methanol vapor concentration involves using an absorption spectrometry technique, that is, after measuring intensities I0 and I1 of light of a laser before and after passing through a space filled with methanol vapor and into which light is irradiated, the methanol vapor concentration is calculated by substituting the intensities I0 and I1 into an equation defined as I1/I0=exp (K·L·C), where K represents the absorption coefficient, L represents the length of the space through which the laser passes, and C represents the methanol vapor concentration.
摘要:
A fuel diffusion unit including: a fuel diffusion plate; a diffusion sheet disposed on fuel diffusion plate, to evenly distribute a fuel to the fuel diffusion plate; a primary transportation unit disposed on the diffusion sheet; secondary transportation units connected to the primary transportation unit, to distribute the fuel to the fuel from the primary transportation unit to the diffusion sheet. The diffusion sheet has a wetting direction that allows the fuel to flow in a predetermined direction. The fuel diffusion unit can be included in a fuel supply unit and a fuel cell system.
摘要:
A fuel diffusion unit including: a fuel diffusion plate; a diffusion sheet disposed on fuel diffusion plate, to evenly distribute a fuel to the fuel diffusion plate; a primary transportation unit disposed on the diffusion sheet; secondary transportation units connected to the primary transportation unit, to distribute the fuel to the fuel from the primary transportation unit to the diffusion sheet. The diffusion sheet has a wetting direction that allows the fuel to flow in a predetermined direction. The fuel diffusion unit can be included in a fuel supply unit and a fuel cell system.
摘要:
A planar type fuel cell is provided. The planar type fuel cell has a membrane electrode assembly including an electrolyte membrane and an anode, and a cathode, and a plate attached to the cathode of the membrane electrode assembly to supply water to the cathode by condensing water vapor generated from the cathode.
摘要:
A direct liquid feed fuel cell stack includes a first end plate and a second end plate facing each other, and a plurality of unit cell modules mounted between the first end plate and the second end plate, wherein an electrical circuit that contacts terminals of the unit cell modules is formed on an inner surface of the first end plate.
摘要:
A monopolar membrane-electrode assembly, including an electrolyte membrane having a plurality of cell regions and at least one opening associated with each cell region, a plurality of anode current collecting bodies and a plurality of cathode current collecting bodies respectively formed at the cell regions on both surfaces of the electrolyte membrane, each current collecting body including a current collector collecting the currents on the cell regions, and a conductor connected to a side of the current collector, respective ends of the conductors of corresponding anode and cathode current collecting bodies being connected through the corresponding openings in series, and a plurality of anodes and a plurality of cathodes respectively formed on the anode current collecting bodies and the cathode current collecting bodies.
摘要:
A monopolar membrane-electrode assembly includes an electrolyte membrane with a plurality of cell regions, an anode supporting body and a cathode supporting body on both sides of the electrolyte membrane, respectively having a plurality of apertures corresponding to the cell regions, a plurality of anode and cathode current collectors, each including a current collecting portion to correspond to each aperture of the respective anode or cathode supporting body to collect current, a conducting portion connected to a side of the current collecting portion, and a connecting line that connects the conducting portion to an outside terminal, a plurality of anode and cathode electrodes respectively formed on the and the cathode current collecting portions, and a circuit unit connected to the connecting lines of the anode current collectors and the cathode current collectors, wherein the cells are connected in series or parallel, or electrically separated through the circuit unit.