According to the present invention, there is provided a method of manufacturing a catalyst-coated ion-conducting membrane, the method comprising the steps of: (a) providing a catalyst layer on a backing layer, wherein the catalyst layer comprises pores; (b) applying a wetting solution to the catalyst layer, wherein the wetting solution impregnates at least some of the pores of the catalyst layer so as to form a wetted catalyst surface; (c) depositing a first dispersion onto the wetted catalyst surface to form a first dispersion layer on the wetted catalyst surface, wherein the first dispersion comprises an ion-conducting polymer; and (d) drying the first dispersion layer and the wetted catalyst surface after step (c).

The presently claimed invention relates to a plasticizer for polyvinylidene fluoride (PVDF), which is used as a binder for electrode fabrication.

A method of forming a catalyst on a catalyst support, combination of catalysts and carbon supports produced thereby, and applications therefor, including catalyst layers, electrodes, membrane electrode assemblies (MEAs), polymer electrolyte membrane fuel cells, and vehicles. Such a method includes guiding ions of a precursor of a catalyst to land uniformly on an NH.sub.2-modified surface of a catalyst support, and depositing fine monodisperse nanoparticles on the NH.sub.2-modified surface. Ultrafine noble metal-transitional metal intermetallic nanoparticles (e.g., PtM) can be directly synthesized on catalyst supports (e.g., carbon supports). Noble metal nanoparticles (e.g., Pt) are monodispersed on a catalyst support through electrostatic attraction established between a precursor of the intermetallic nanoparticles and protonated ammonium ions (NH.sub.3.sup.+) immobilized over surfaces of the catalyst support. The monodisperse noble metal nanoparticles are then used as seeds to form the intermetallic nanoparticles.

The performance of a bipolar type metal air battery is improved while a low environmental load is maintained. The bipolar type metal air battery includes a plurality of cells including air electrodes composed of a co-continuous component having a 3D network structure in which a plurality of nanostructures are integrated by non-covalent bonds, negative electrodes, and an electrolyte disposed between the air electrode and the negative electrode, and a current collector disposed between the plurality of cells, and the plurality of cells are electrically connected in series, and the current collector is in close contact with the negative electrode using a biodegradable material.

A roll-to-roll continuous coater for CCM preparation, and a coiled material connection method are provided. The coater has a coiled material connection mechanism that includes an upper rack (2) and a lower rack (3). A vacuum suction plate I (2-3) provided with a driving device for achieving displacement and a vacuum suction plate II (3-1) provided with a solid glue spraying device (3-3) are respectively disposed on the bottom of the upper rack (2) and the top of the lower rack (3). An optical fiber sensor I (2-4) and an optical fiber sensor II (3-2) are respectively disposed in the vacuum suction plate I (2-3) and the vacuum suction plate II (3-1). A tension detection device (4) is disposed between the lower rack (3) and a driving roller assembly (1).

Disclosed are a nickel/nickel hydroxide electrode catalyst, a preparation method thereof and an application thereof, the catalyst includes a porous matrix structure and a nanosheet, where the nanosheet is doped in the porous matrix structure, a mass percentage of the porous matrix structure is 95%-99%, a mass percentage of the nanosheet is 1%-5%, and a mass density of the nanosheet is 12-15 mg/cm.sup.2; and the porous matrix structure is nickel, and the nanosheet is nickel hydroxide in configuration. The present disclosure develops an electrode catalyst with higher catalytic efficiency and a simpler preparation method based on the Ni-based catalysts to achieve efficient application of hydrogen energy.

A method for a synthesis of a metal catalyst, including providing at least one metal complex including a metal ion and a non-chelating complexing agent having carbon, the complex having a decomposition temperature, and performing a pyrolysis of the complex at a temperature greater than or equal to a decomposition temperature of the complex, whereby inducing a formation of nanoparticles surrounded by a carbon matrix to form the catalyst. Thanks to the carbon matrix, the catalysts provided herein can be corrosion resistant, self-healing, more cost-effective, and can have higher catalytic activity. The synthesis of the catalyst and its properties can furthermore be improved compared to catalysts formed from a complex including a chelating.

The invention relates to a layer system (1) for coating of a substrate (2a) to form an electrode plate (2), comprising at least one coating (1a) of metal oxide, wherein the coating (1a) includes a homogeneous polycrystalline doped indium tin oxide layer, atop which is a polycrystalline doped indium tin oxide layer composed of a network of nanofibers (6), wherein the indium tin oxide is doped with at least one element from the group comprising carbon, nitrogen, boron, fluorine, hydrogen, phosphorus, sulfur, chlorine, bromine, aluminium, silicon, titanium, chromium, cobalt, nickel, copper, zirconium, niobium, molybdenum, silver, antimony, hafnium, tantalum, tungsten. The invention further relates to an electrode plate comprising such a layer system, to a process for production thereof, and to a fuel cell, an electrolyzer or a redox flow cell comprising at least one such electrode plate.

Disclosed is a lithium battery comprising: a cathode; an anode including a passivation film; and an electrolyte interposed between the cathode and the anode, wherein the passivation film includes 0.5 wt % or more and less than 5 wt % of sulfur (S), and the passivation film has a heating value of 50 J/g or less when a nail penetrates the passivation film. The lithium battery has improved penetration characteristics.

The present invention provides a fuel cell electrode, which has increased physical and chemical durability, and a method for manufacturing a membrane-electrode assembly (MEA) using the same. According to the present invention, the fuel cell electrode is manufactured by controlling the amount of platinum supported on a first carbon support used in an anode to be smaller than that used in a cathode to increase the mechanical strength of a catalyst layer and maintain the thickness of the catalyst layer after prolonged operation and by adding carbon nanofibers containing a radical scavenger to a catalyst slurry to decrease deterioration of chemical durability.