A use of graphene-reinforced ultra-conductive copper in a field of high-current devices is provided. In the graphene-reinforced ultra-conductive copper, carbon atoms of graphene are distributed in gaps among copper atoms. This structure can lead to an exceptionally robust internal structure for the copper material, and thus makes the copper material have properties such as low temperature coefficient of resistance (TCR), small coefficient of thermal expansion (CTE), and high current density. Therefore, the graphene-reinforced ultra-conductive copper is suitable for devices requiring a high current and a low temperature, including electric vehicles (charging/motors/signals), drones, semiconductor electronics, and defense/military-grade wires. The graphene-reinforced ultra-conductive copper is a novel conductor material that integrates energy conservation, heat reduction, pressure resistance, and cost effectiveness.

A conductive cable for a battery electric vehicle is provided. The conductive cable comprises a plurality of first members in alignment to define a longitudinal axis of the conductive cable. Each first member comprises a first conductive wire about which a first outer layer is disposed for electric current to flow therethrough relative to the longitudinal axis. The first outer layer comprises a first metal substrate having a first side and an opposite second side. The first outer layer comprises a first copper-graphene (Cu-Gr) multilayer composite disposed on the first side and a second Cu-Gr multilayer composite disposed on the second side of the first metal substrate. Each first conductive wire comprises a first metallic material. The plurality of first members is disposed together along the longitudinal axis to define a cable bundle. The conductive cable further comprises a non-conductive layer disposed about the cable bundle.

A rectangular cross-section multi-core insulated wire includes an assembly of wires in which insulating layers are formed on peripheries of conductors, and the assembly of the wires is a composite twisted structure, and includes first twisted wires formed by twisting the wires, second twisted wires formed by twisting the first twisted wires, and third twisted wires formed by twisting the second twisted wires. An insulating fiber thread is wound around a periphery, a cross-section is formed in a rectangular shape, and a winding direction of the fiber thread is a direction opposite to a twisting direction of outermost twisted wires in the assembly of the wires.

Provided are a high-temperature corrosion-resistant stranded conductor and a method for manufacturing the same, which relate to the field of high-temperature conductor technologies. The stranded conductor is formed by twisting a plurality of composite wire monofilaments, each including a highly conductive core wire made of copper or a copper alloy, and a high-temperature corrosion-resistant alloy cladding the core wire. The stranded conductor is capable of maintaining strength and transmitting a signal under a high-temperature atmospheric environment below 1000 C. for an extended period of time. By employing a plurality of twisted composite wire monofilaments with the above structure, the conductor achieves high strength retention, stable electrical conductivity, and superior oxidation/corrosion resistance when operating long-term under operating conditions of 600 C. to 1000 C. This solves the technical problem of conventional conductors failing in high-temperature environments.

Wires are disclosed. A wire includes a metallic core conductor material and a metallic clad conductor material. The core conductor material has a first resistance and the clad conductor material has a second resistance greater than the first resistance. The clad conductor material is configured to form an oxidation barrier to at least partially shield the core conductor material from oxidation in an oxygen-containing, high-temperature environment.

A cable includes: a core wire including a pair of inner conductors arranged at intervals in a transverse direction and an inner insulating layer covering the pair of inner conductors; a shielding layer disposed outside the insulating layer; and an outer insulating layer covering the shielding layer; wherein a cross-sectional shape of the inner conductor is flat, and a cross-sectional shape of the inner insulating layer is semicircular at least on two sides in the transverse direction.

A composite material including a composite film formed on a base material, the composite film including a silver layer containing carbon particles, wherein a content of Sb in the composite film is 1 mass % or less, and a crystallite size of silver in the composite film is 40 nm or less.

An electrically conductive wire includes a core wire made of metal, and a coating layer made of stainless steel covering a surface of the core wire. The metal constituting the core wire has an electrical conductivity greater than that of the stainless steel. The core wire includes a diffusion layer containing not less than 0.5 mass % Fe, arranged to constitute the surface of the core wire. The diffusion layer has a thickness that is not less than 0.4% and not more than 5% of the diameter of the core wire.

The present invention relates to the technical field of subsea power cables. More specifically, the invention relates to a subsea power cable comprising at least one cable core, the cable core comprising a metal conductor, the metal conductor comprising at least one metal wire, wherein a section of the at least one metal wire along the longitudinal direction is surrounded with a material of low electrical conductivity.

A composite wire bundle for a stator winding, a stator including a composite wire bundle, and a method of forming a composite wire bundle. The composite wire bundle includes a plurality of copper wires, wherein each of the plurality of copper wires include a first surface. The composite wire bundle also includes a copper-graphene multilayer composite applied to the first surface of each of the plurality of copper wires, wherein the copper-graphene multilayer composite includes a second surface. Further, the composite wire bundle includes a fluoropolymer matrix formed around the second surfaces and a jacket encapsulating the fluoropolymer matrix.