Abstract: An electrocatalyst for an electrode comprises (i) an electrically conductive particulate support comprising one or more electrocatalytically active metals and (ii) an electrically conductive material which is substantially free of electrocatalytically active metals and has an electroconductivity which is higher than the electroconductivity of (i). This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Power unit for an electronic device and process for control and regulation of an electronic device powered by a fuel cell. Power unit includes a fuel cell having a low output voltage between 0.3 and 1V, and a conversion device coupled to the fuel cell to convert an input voltage as low as 0.3 V to a higher output voltage to operate the electronic device.

Abstract: Fuel cell including a casing, a cathode having a first surface and a second surface, at least part of the second surface being exposed to the atmosphere, an anode having a first surface and a second surface, a first chamber configured to retain liquid fuel, wherein the first chamber is defined at least partially by the first surface of the anode, and a second chamber configured to retain liquid electrolyte, wherein the second chamber is defined at least partially by the second surface of the anode and the first surface of the cathode, wherein the fuel cell is configured to be sealed in a substantially liquid-tight manner during at least a portion of its service life. A cartridge can be connected to the fuel cell. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: An electrode for an electrochemical capacitor which comprises a porous carbon substrate having thereon at least a first or innermost layer comprising a first inherently conductive polymer and a second or outermost layer comprising a second inherently conductive polymer. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A substantially dry method of making a gas diffusion electrode such as, e.g., an air cathode for a fuel cell or a metal-air battery cell. The method comprises forming an intimate mixture of catalytically active carbon particles and particles of a wet-proofing agent into a web; combining under pressure the web of with a current collector to form a current collector-web composite; and attaching a porous sheet of a fluorinated polymer to one side of the current collector-web composite of to form an air cathode. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A hydrogen generation device includes a liquid fuel chamber, a catalytic hydrogen generation chamber, a hydrogen collection chamber and separation elements between these chambers. Once a certain hydrogen pressure in the device is reached liquid fuel is substantially prevented from being catalytically converted into hydrogen, whereby the production of hydrogen is stopped until hydrogen is allowed to exit the device to lower the pressure therein. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Power unit for an electronic device and process for control and regulation of an electronic device powered by a fuel cell. Power unit includes a fuel cell having a low output voltage between 0.3 and 1 V, and a conversion device coupled to the fuel cell to convert an input voltage as low as 0.3 V to a higher output voltage to operate the electronic device.

Abstract: A method of preparing a supported platinum and/or palladium electrocatalyst and the electrocatalyst produced thereby. The method comprises the contacting of an electrically conductive particulate support which comprises adsorbed polynuclear hydroxo complexes of platinum and/or palladium with a reducing agent. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Process and apparatus for controlling a fuel cell. The process includes drawing a pulse from a fuel cell in one of a standby mode or no load condition. The pulse is one of a power, current, and voltage pulse. The apparatus includes a field effect transistor arranged to selectively couple a resistance to fuel cell to draw current from the fuel cell, and a timer defining a pulse, during which the field effect transistor couples the resistance to the fuel cell to draw current from the fuel cell. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Process and apparatus for powering a powered device with a fuel cell. The process includes maintaining an input voltage, supplied by the fuel cell, to a converter device, and controlling an output power of the converter device, which is coupled to the powered device. The process also includes varying the current drawn from the fuel cell to compensate for fluctuations in the voltage required during operation of the powered device. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Fuel cell system including a fuel cell assembly having an anode and a cathode. A fuel/electrolyte module includes a liquid fuel and/or a liquid electrolyte and/or components of the liquid fuel and/or the liquid electrolyte. A housing arrangement houses the fuel cell assembly and the fuel/electrolyte module. A system is used for transferring at least a part of the contents of the fuel/electrolyte module into the fuel cell assembly. A method is also disclosed of generating electrical power using a power system including at least one fuel cell unit having a fuel cell assembly and a fuel/electrolyte module arranged within a housing arrangement. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A power supply system, in particular for use during emergencies and/or power outages, that includes at least one liquid fuel cell, at least one cartridge, and a system or device for transferring the contents of the cartridge to the fuel cell. A cartridge-free power supply system is also disclosed. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A process for making a framed electrode by injection molding. The process comprises placing a flat piece of electrode material on a shrinkage-free under mold frame and attaching it thereto in a manner which substantially prevents the piece and the frame from moving relative to each other, over molding the resultant assembly by injecting a molten resin into an over molding cavity which contains the assembly, and allowing the resin to solidify. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Described is a leak-proof fuel cell which comprises at least one liquid within a casing that comprises at least one opening which is sealed by a first structure that is gas-pervious and substantially impervious to the at least one liquid. At least that portion of the casing which comprises the at least one opening is enclosed by a second structure which allows gas to pass therethrough. A space defined by the casing and the second structure comprising therein at least one material that is capable of binding the at least one liquid. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A direct liquid fuel cell which comprises a gel electrolyte and a liquid fuel. The liquid fuel comprises a metal hydride compound and/or a borohydride compound. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An anode for a liquid fuel cell which has been subjected to a hydrophilization treatment in at least a part of a side thereof that is intended to contact the liquid fuel. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: A method of producing a fuel or concentrate thereof for a fuel cell. The method comprises providing a solution of at least one hydroxide ion providing compound in a liquid medium and combining and mixing one or more hydride compounds with this solution to provide a colloidal dispersion of the hydride compound(s) in the alkaline medium. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A hydride containing fuel composition for a liquid fuel cell. The composition comprises an alkaline liquid phase and at least two hydride compounds. The solubility of the first hydride compound in the liquid phase is higher than the solubility of a second hydride compound in the liquid phase and the opposite is true for the anodic oxidation products thereof. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An anode for a direct liquid fuel cell in which hydrogen gas is generated as a result of a fuel oxidation or decomposition reaction. The surface of the anode which is intended to face the electrolyte chamber of the fuel cell is substantially completely covered with a polymeric material which prevents at least about 80% of the generated hydrogen gas to pass through the anode into the electrolyte chamber.

Abstract: A direct liquid fuel cell includes a cathode, an anode, a fuel chamber, and at least one membrane arranged between the anode and the fuel chamber. The membrane is structured and arranged to allow gas which is formed on or in the vicinity of the surface of the anode which faces the fuel chamber to accumulate adjacent to the anode at least to a point where the accumulated gas substantially prevents a direct contact between the anode and the liquid fuel. A method of preventing or reducing fuel decomposition in the fuel cell is also disclosed. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.