US 12,374,470 B2
Multilayer electrically conductive wire having graphene layers
Kyril Lekarski, Moissy Cramayel (FR)
Assigned to SAFRAN ELECTRONICS & DEFENSE, Paris (FR)
Filed by SAFRAN ELECTRONICS & DEFENSE, Paris (FR)
Filed on Dec. 21, 2021, as Appl. No. 17/557,760.
Claims priority of application No. 2013887 (FR), filed on Dec. 22, 2020.
Prior Publication US 2022/0199280 A1, Jun. 23, 2022
Int. Cl. H01B 1/04 (2006.01); H01B 13/016 (2006.01)
CPC H01B 1/04 (2013.01) [H01B 13/0165 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multilayer electrically conductive wire comprising:
a central support core;
a set of pairs of layers around the central support core each comprising at least one intercalary layer made of a non-carbon based material and a graphene layer, wherein a first layer of a first pair of layers is deposited on an outer surface of the central support core enveloping the outer surface of the central support core and a first layer of a N+1th pair of layers is deposited on a second layer of a Nth pair of layers, in such a way as to separate each graphene layer from another graphene layer by one of the intercalary layers, wherein the non-carbon based material of each intercalary layer is an insulating material, and wherein each graphene layer is made using a chemical vapor deposition method, and the ends of the conductive wire are soldered such that all the graphene layers are electrically connected in parallel, wherein the insulating material of at least one intercalary layer is made of silicon oxide (SiOx).