An arrangement for welded conductors for power transmission cables is provided, with conductors welded by a high conductive welding material. A method is also provided for production of welded conductors and power transmission cables including the welded conductors.

A cable is composed of a cable core including one or more electric wires, a shield layer covering around the cable core, and a sheath covering around the shield layer. The shield layer includes a braided shield braided in such a manner that first metal wires composed of aluminum or an aluminum alloy intersect with second metal wires composed of copper or a copper alloy. An outer diameter of each of the second metal wires is larger than an outer diameter of each of the first metal wires.

There is provided an Al wiring material which suppresses a chip crack and achieves thermal shock resistance while suppressing lowering of a yield at the time of manufacture. The Al wiring material contains at least Sc and Zr so as to satisfy 0.01≤x1≤0.5 and 0.01≤x2≤0.3 where x1 is a content of Sc [% by weight] and x2 is a content of Zr [% by weight], with the balance comprising Al.

An electrochromic device according to an embodiment includes a first transparent conductive layer, an ion storage layer, an electrolyte layer, an electrochromic layer, and a second transparent conductive layer. The electrolyte layer includes a tantalum atom. The electrochromic layer includes a tungsten atom. The ion storage layer includes an iridium atom and a tantalum atom. The ion storage layer is hydrogenated in bleached state and the electrochromic device has a transmittance of 64.1% or more in bleached state. A difference between the transmittance of the electrochromic device in bleached state and the transmittance of the electrochromic device in colored state is 8.4% or more.

High-voltage power line cables for electric power transmission and, in particular, cable conductors for overhead electric power transmission and methods of making such conductors are disclosed. Methods for revamping in-stock and deployed cable conductors for overhead electric power transmission also are disclosed. Each cable conductor has an outermost surface defined by strands that are wrapped around a core of the cable conductor. Indentations are formed in the surfaces of the strands preferably such that an arrangement of dimples extending circumferentially around a longitudinal axis of the cable conductor repeats along a longitudinal direction of the cable conductor. The surface indentations preferably define a dimpled surface of the cable conductor.

An object of the present invention is to provide, at a low cost, a system and a method for manufacturing a solar cell having high conversion efficiency. A solar cell according to the present invention is characterized by including a passivation film that protects a semiconductor substrate, a first finger electrode connected to the semiconductor substrate on a main surface of the semiconductor substrate, a first bus bar electrode that intersects the first finger electrode, and an intermediate layer provided in an intersecting position of the first finger electrode and the first bus bar electrode. The solar cell is characterized in that the first finger electrode and the first bus bar electrode are electrically connected to each other via the intermediate layer.

A copper-aluminum composite electric energy transmission system and a processing method therefor are disclosed. The system includes a copper terminal (1) and an aluminum cable (6). The aluminum cable (6) includes an aluminum conductor (2) and an insulation layer (3) cladding a periphery of the aluminum conductor (2). The system further includes an electric energy transmission aluminum piece (4), in which a section of the aluminum conductor (2) with the insulation layer (3) stripped from the aluminum cable is pressed to form a connecting piece. The electric energy transmission aluminum piece (4) and a front end of the aluminum conductor (2) form a molten layer (5). An end of the copper terminal (1) for being welded to the electric energy transmission aluminum piece (4) is provided with a welding platform (11). The molten layer (5) dads the welding platform (11) to form a transition layer (12) with metal atoms penetrating into or combined with each other. By reducing an internal stress between copper and aluminum, the mechanical property of a copper-aluminum welding joint is improved. Copper-aluminum compounds in the transition layer (12) are reduced, and the electrical property of the copper-aluminum welding joint is improved. Meanwhile, a path of the transition layer (12) to resist an erosion from an external environment is extended, thereby solving the metal corrosion problem of the copper-aluminum welding joint, and prolonging the service life.

An object of the present disclosure is to provide a high strength aluminum alloy material having a ribbon shape, which can be an alternative to copper-based materials and iron-based materials having a ribbon shape, and a conductive member, a conductive component, a spring member, a spring component, a semiconductor module member, a semiconductor module component, a structural member and a structural component including the aluminum alloy material. The aluminum alloy material of the present disclosure has an alloy composition containing Mg: 0.2% to 1.8% by mass, Si: 0.2% to 2.0% by mass, and Fe: 0.01% to 1.50% by mass, with the balance being Al and inevitable impurities, wherein the aluminum alloy material has a Vickers hardness (HV) of 90 or more and 190 or less and has a ribbon shape.

A cable includes: a pair of core wires; a shielding layer covering the pair of core wires; an insulating outer layer covering the shielding layer; a ground wire between the pair of core wires and the shielding layer; and a filler wire between the pair of core wires and the shielding layer, and the filler wire is arranged symmetrically with the ground wire.

A vehicle cable capable of transmitting a signal of 4 GHz or higher includes a two-core cable, a general shield layer that has a braided structure and is disposed on an outer periphery of the two-core cable, and an outer sheath disposed on an outer periphery of the general shield layer. The two-core cable includes two conductors that are a pair of stranded wires arranged in parallel to each other, an insulation layer configured to bundle and cover the two conductors, and a first shield layer including a first metal foil that is disposed on an outer periphery of the insulation layer.