摘要:
A method of making a fuel cell includes the following steps. A pattern is placed on a base surface to create a predetermined topography on the base surface. An anode layer, a cathode layer and/or an electrolyte layer is/are deposited over the pattern. Areas of higher topography are removed from areas of lower topography using chemical mechanical planarization to form a predetermined fuel cell structure.
摘要:
Various embodiments of the invention are directed toward a fuel cell assembly comprising a fuel cell casing and one or more fuel cell elements comprised of electrode and electrolyte material. The fuel cell casing is configured with threads and the fuel cell elements can be threadingly engaged in the fuel cell casing.
摘要:
A fuel cell has a substrate with a film deposited thereon. The film has nanowires dispersed therein. Catalytic activity and conductivity is substantially enhanced throughout the film.
摘要:
A fuel cell includes at least one electrode operatively disposed in the fuel cell, and having a catalytically active surface. The present invention further includes a mechanism for maintaining a substantially uniform maximum catalytic activity over the surface of the electrode.
摘要:
A fuel cell includes at least one electrode operatively disposed in the fuel cell, and having a catalytically active surface. The present invention further includes a mechanism for maintaining a substantially uniform maximum catalytic activity over the surface of the electrode.
摘要:
A fuel cell is disclosed that includes a passive support having a fine pore region disposed between a first coarser pore region and a second coarser pore region. An exemplary fuel cell has an electrolyte material positioned in the fine pore region and a first electrode material positioned in the first coarser pore region and a second electrode material positioned in the second coarser pore region. Other exemplary devices and/or methods are also disclosed.
摘要:
A method for making a photonic structure, including creating a first vapor stream of a first vapor material, the first vapor stream having a first non-uniform flux in at least one direction; and moving a substrate in at least a portion of the vapor stream. In addition, the method includes depositing the first vapor material on a first major surface of said substrate, and forming a first layer and a density gradient in the first layer during deposition. The first layer is disposed on and the density gradient is in a direction perpendicular to the first major surface.
摘要:
Various embodiments of the invention are directed towards electrode-electrolyte composites. The electrode-electrolyte composites comprise electrode material and electrolyte material. At least a portion of the electrode material is present as a plurality of discrete regions having conductive contact with the electrolyte material.
摘要:
An electrode suitable for use in a fuel cell includes a passive support having pores wherein the passive support has an asymmetric pore morphology with respect to at least one dimension of the passive support; and an electrode material positioned in the pores of the passive support. An exemplary electrode includes an electrode material of a metal and/or metal oxide. An exemplary porous electrode includes a deposited electrolyte layer that blocks at least some pores of the porous electrode. An exemplary method includes reducing an electrode material positioned in pores of a passive support to create secondary porosity and/or to limit agglomeration. Other exemplary devices and/or methods are also disclosed.