US 12,260,971 B2
Alignment of HTS tapes
Robert Slade, Abingdon (GB); Greg Brittles, Abingdon (GB); and Bas Van Nugteren, Abingdon (GB)
Assigned to Tokamak Energy Ltd, Abingdon (GB)
Appl. No. 17/273,630
Filed by Tokamak Energy Ltd, Abingdon (GB)
PCT Filed Aug. 30, 2019, PCT No. PCT/GB2019/052435
§ 371(c)(1), (2) Date Mar. 4, 2021,
PCT Pub. No. WO2020/049281, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 1814357 (GB), filed on Sep. 4, 2018.
Prior Publication US 2021/0343452 A1, Nov. 4, 2021
Int. Cl. H01B 12/02 (2006.01); G21B 1/21 (2006.01); H01F 6/06 (2006.01); G21B 1/05 (2006.01)
CPC H01B 12/02 (2013.01) [G21B 1/21 (2013.01); H01F 6/06 (2013.01); G21B 1/057 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cable for carrying electrical current in a coil of a magnet, comprising:
a stack of tape assemblies, each tape assembly having a length and a width, such that the length is much larger than the width and each tape assembly comprises an HTS layer of anisotropic high temperature superconductor, HTS material, wherein a c-axis of the HTS layer is at a non-zero angle to a vector perpendicular to the plane of the HTS layer;
wherein the tape assemblies are stacked as a series of pairs, each pair comprising first and second HTS tape assemblies and a copper layer therebetween;
wherein the tape assemblies in each pair are arranged such that the c-axis of the HTS layer of the first HTS tape assembly of each pair have reflective symmetry to the c-axis of the HTS layer of the second HTS tape assembly of each pair about a plane which is parallel to and equidistant from each HTS layer.