摘要:
Disclosed is use of a porous membrane and a composite membrane thereof in a redox flow batteries, and in particular the use thereof in a vanadium redox flow battery. The membrane can effectively realize the separation of ions with different valence states, and an ion transfer without any ion exchange group. The pore size and structure of the porous membrane can be controlled by filling an inorganic substance or grafting an ion exchange group in the pore, in order to improve the barrier properties of the porous membrane for vanadium ions and to increase proton conductivity.
摘要:
A process is provided for producing electrolytic decomposition products of water by effecting a DC potential across a membrane comprising ripstop nylon interposed between an anode and a cathode. In electrolyzer mode, the electrochemical process produces hydrogen as well as oxygen products. In fuel-cell mode, the electrochemical process produces electricity from hydrogen and oxygen.
摘要:
The present invention provides a fuel cell unit, fuel cell unit array, fuel cell module and fuel cell system that can achieve a reduction in size and costs. The fuel cell unit of the present invention has a PIN structure comprising a fuel electrode (11) formed of a p-type semiconductor, an oxygen electrode (13) formed of an n-type semiconductor, and an interlayer (12) formed of an intrinsic semiconductor lying between the fuel electrode (11) and the oxygen electrode (13); wherein the fuel electrode (11) and the oxygen electrode (13) are porous and have fluid permeability; a metal-based catalyst layer is formed on the inner surfaces of pores in the porous portion; the interlayer (12) is porous so that hydrogen ions generated at the fuel electrode (11) can pass therethrough, but electrons are blocked; hydrogen-containing fuel is supplied to the surface of the fuel electrode (11) and an oxygen-containing oxidizing fluid is supplied to the surface of the oxygen electrode (13); and connecting terminals each electrically connected to the fuel electrode (11) and the oxygen electrode (13).
摘要:
The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, because of its excellent chemical and thermal properties, be used in a variety of ways and is particularly useful as polymer electrolyte membrane (PEM) to produce membrane electrode units for PEM fuel cells.
摘要:
A direct oxidation fuel cell includes at least one cell. The cell includes a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane disposed between the anode and the cathode. The cell also includes: an anode-side separator being in contact with the anode and having a fuel flow channel for supplying a fuel to the anode; and a cathode-side separator being in contact with the cathode and having an oxidant flow channel for supplying an oxidant to the cathode. The electrolyte membrane includes an ion exchange resin and has an ion exchange capacity per unit volume which is smaller upstream of the fuel flow channel than downstream thereof.
摘要:
The invention provides a solid polymer fuel cell whose operational stability over time has been enhanced. A reinforced solid polymer electrolyte composite membrane for a solid polymer fuel cell according to the present invention comprises two or more polymer electrolyte membranes and one or more layers of a sheet-like porous reinforcing member, wherein the polymer electrolyte membranes provide both the upper and lower surfaces of the composite membrane, and pores in the sheet-like porous reinforcing member are substantially filled with the electrolyte from the polymer electrolyte membranes, and wherein the sheet-like porous reinforcing member contains a peroxide decomposition catalyst.
摘要:
A phosphoric acid fuel cell system comprising a porous electrolyte support, a phosphoric acid electrolyte in the porous electrolyte support, a cathode electrode contacting the phosphoric acid electrolyte, and an anode electrode contacting the phosphoric acid electrolyte.
摘要:
The invention relates to a redox battery comprising a proton-permeable membrane, a first electrolyte (5) and a second electrolyte (6), as well as a first electrode (7) and a second electrode (8). The membrane is designed as a hollow profiled member (4), the electrolytes (5, 6) are provided in a liquid form at least in the operating state, the first electrolyte (5) and the first electrode (7) are disposed inside the hollow profiled member (4), the second electrolyte (6) is externally arranged around the hollow profiled member (4), and the second electrode (8) is externally placed on or near the hollow profiled member (4). Furthermore, a plurality of electrodes (7 or 8) are connected in parallel, and the interior spaces of the hollow profiled members (4) are fluidically interconnected.
摘要:
A phosphoric acid fuel cell system comprising a porous electrolyte support, a phosphoric acid electrolyte in the porous electrolyte support, a cathode electrode contacting the phosphoric acid electrolyte, and an anode electrode contacting the phosphoric acid electrolyte.
摘要:
The present invention relates to a proton-conducting multilayer electrolyte membrane with a barrier layer, a process for producing it and a fuel cell containing such a membrane.