US 11,875,913 B2
Electrical conductor made of graphene and/or carbon nanotubes having coated joints
Martin Koehne, Asperg (DE); Felix Stewing, Steinheim (DE); and Raimund Bohl, Heimsheim (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/783,681
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Oct. 19, 2020, PCT No. PCT/EP2020/079322
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/115669, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10 2019 219 184.3 (DE), filed on Dec. 9, 2019.
Prior Publication US 2023/0005639 A1, Jan. 5, 2023
Int. Cl. H01B 1/04 (2006.01); B32B 7/025 (2019.01); H01B 5/00 (2006.01)
CPC H01B 1/04 (2013.01) [B32B 7/025 (2019.01); H01B 5/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrical conductor comprising an electrically conductive material comprising graphene and/or carbon nanotubes and a joint, the electrically conductive material of the electrical conductor having thereon, at the joint, a metallic coating configured to cohesively connect the electrical conductor to a metallic conductor element, the metallic coating being in direct contact with the electrically conductive material, wherein the metallic coating of the joint a metal which forms carbides in a boundary layer of the coating through reaction of the metal of the metallic coating with the carbon of the electrically conductive material,
wherein the metallic coating comprises titanium and/or zirconium and/or iron and/or vanadium and/or niobium and/or molybdenum and/or hafnium and/or tantalum and/or tungsten,
wherein nitrides are formed in the boundary layer of the metallic coating, and
wherein the metallic coating is a plasma coating.