A metal sheet has a longitudinal direction and a width direction. The metal sheet has shapes in the width direction that are taken at different positions in the longitudinal direction of the metal sheet and differ from one another. Each of the shapes is an undulated shape including protrusions and depressions repeating in the width direction of the metal sheet. A length in the width direction of a surface of the metal sheet is a surface distance. A minimum value of surface distances at different positions in the longitudinal direction of the metal sheet is a minimum surface distance. A ratio of a difference between a surface distance and the minimum surface distance to the minimum surface distance is an elongation difference ratio in the width direction. A maximum value of elongation difference ratios is less than or equal to 2×10.sup.−5.

The present invention relates to a nano-porous electrode for a super capacitor and a manufacturing method thereof, and more specifically, to a nano-porous electrode for a super capacitor and a manufacturing method thereof wherein pores are formed on the surface or inside an electrode using an electrodeposition method accompanied by hydrogen generation, thereby increasing the specific surface area of the electrode and thus improving the charging and discharging capacity, energy density, output density, and the like of a capacitor. The method for manufacturing a nano-porous electrode for a super capacitor according to the present invention manufactures a nano-porous electrode using hydrogen generated by the electrodeposition as a template to minimize the amount of metal used, so that electrode manufacturing costs can be sharply reduced, the specific surface area of the electrode can be adjusted by a simple process, and also the charging and discharging capacity, energy density, output density, and the like of a capacitor can be improved by increasing the specific surface area.

The present invention relates to a nano-porous electrode for a super capacitor and a manufacturing method thereof, and more specifically, to a nano-porous electrode for a super capacitor and a manufacturing method thereof wherein pores are formed on the surface or inside an electrode using an electrodeposition method accompanied by hydrogen generation, thereby increasing the specific surface area of the electrode and thus improving the charging and discharging capacity, energy density, output density, and the like of a capacitor. The method for manufacturing a nano-porous electrode for a super capacitor according to the present invention manufactures a nano-porous electrode using hydrogen generated by the electrodeposition as a template to minimize the amount of metal used, so that electrode manufacturing costs can be sharply reduced, the specific surface area of the electrode can be adjusted by a simple process, and also the charging and discharging capacity, energy density, output density, and the like of a capacitor can be improved by increasing the specific surface area.

A porous material with a specific surface area higher than 10/mm, and methods and system for manufacturing such a porous material. The porous material includes a plurality of pores having a substantially uniform size with a variation of less than about 20%, wherein the size is larger than about 100 nm and smaller than about 5 mm. A system including the porous material can be configured as one of a desalination system, a super-fine bubble generation system, a capacitor system, or a battery system.

A porous material with a specific surface area higher than 10/mm, and methods and system for manufacturing such a porous material. The porous material includes a plurality of pores having a substantially uniform size with a variation of less than about 20%, wherein the size is larger than about 100 nm and smaller than about 5 mm. A system including the porous material can be configured as one of a desalination system, a super-fine bubble generation system, a capacitor system, or a battery system.

Various embodiments of the disclosure relate to an electronic device and relate to an electronic device including a housing formed through anodizing and a method for manufacturing the housing of the electronic device. According to an embodiment of the disclosure, there may be provided an electronic device including a housing at least partially including an electrically conductive material, where a surface of the electrically conductive material is formed of an oxide film layer having a plurality of cavities, where the plurality of cavities are colored in a first color and a second color, and where the first color and the second color are mixed when the second color is deposited on the first color.

Various embodiments of the disclosure relate to an electronic device and relate to an electronic device including a housing formed through anodizing and a method for manufacturing the housing of the electronic device. According to an embodiment of the disclosure, there may be provided an electronic device including a housing at least partially including an electrically conductive material, where a surface of the electrically conductive material is formed of an oxide film layer having a plurality of cavities, where the plurality of cavities are colored in a first color and a second color, and where the first color and the second color are mixed when the second color is deposited on the first color.

A component can be formed having an integral monolithic body. The integral monolithic body can be formed utilizing electroforming processes such as electrodeposition of metal alloys. The electroformed monolithic body can be formed utilizing multiple anodes powered by multiple power sources. The monolithic body can have differing local material properties determined during formation of the component.

A component can be formed having an integral monolithic body. The integral monolithic body can be formed utilizing electroforming processes such as electrodeposition of metal alloys. The electroformed monolithic body can be formed utilizing multiple anodes powered by multiple power sources. The monolithic body can have differing local material properties determined during formation of the component.

A composite layer of carbon nanotubes and metal such as copper is formed by electrodeposition. The layer has a thickness of at least 10 m. The carbon nanotubes are distributed through the layer and are present in the layer at a volume fraction of at least 0.001 vol % and at most 65 vol %. The volume fraction is based on the total volume of the metal and carbon nanotubes and not including any pore volume. The carbon nanotubes are substantially uniformly plated with the metal. The composite layer has a density ratio satisfying Player Pmetal 0.35 where player is the bulk density of the composite layer of thickness of at least 10 m, including any voids that are present in the composite layer and pmetal is the volumetric mass density material property of the metal. The composite layer is of use in evaporation-condensation apparatus, as an active material layer in an electrochemical device or in an electroforming process.