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Development of long-length CORC® cables and cable-in-conduit-conductors for compact fusion reactors

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0024288
Agency Tracking Number: 272330
Amount: $200,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: C56-30a
Solicitation Number: N/A
Solicitation Year: 2023
Award Year: 2023
Award Start Date (Proposal Award Date): 2023-07-10
Award End Date (Contract End Date): 2024-04-09
Small Business Information
2200 Central Avenue UNIT A/B
Boulder, CO 80301
United States
DUNS: 969353734
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jeremy Weiss
 (904) 891-0580
Business Contact
 Danko van der Laan
Phone: (720) 933-5674
Research Institution
 Lawrence Berkeley National Laboratory (LBNL)
 Michelle Sheldon
1 Cyclotron Rd
Berkeley, CA 94720-8099
United States

 Federally Funded R&D Center (FFRDC)

The next-generation low-inductance magnets generating magnetic fields exceeding 14-20 T at 20 K for fusion applications require flexible, high-current high temperature superconducting (HTS) cables that can be manufactured in long lengths. Such cables are currently not available. Advanced Conductor Technologies proposes to develop high-current (20-80 kA) Conductor on Round Core (CORC®) cables wound from HTS tapes that can be produced in long lengths for fusion magnet applications. During the Phase I program, CORC® cables and highly transposed cable-in- conduit-conductors (CICC) will be developed that allow straightforward manufacturing at long lengths with the mechanical resilience needed for compact fusion reactors. The technology will be developed to wind long CORC® cables from HTS tapes that contain tape-to-tape joints and use current sharing between tapes to enable cable lengths that are independent of HTS tape single piece lengths. Several CORC® cables containing tape-to-tape joints will be manufactured and their critical current performance will be evaluated as a function of bending and axial tensile load, and their thermal stability will be measured at 20 – 40 K using helium gas cooling. Several methods to manufacture transposed CORC®-CICC at long lengths will be developed, in which the CORC® conductor is provided with sufficient mechanical support against the high Lorenz forces during operation. During Phase II, longer CORC® cables will be manufactured, wound into small coils, and their performance tested. Longer CORC®-CICC will be manufactured using at least one of the approaches developed during the Phase I program, and their performance tested in relevant background magnetic fields. If successful, the program will result in long-length CORC® cables, and highly transposed CORC®-CICC needed to make compact fusion reactors a reality. Long-length CORC® cables and CICC will enable next generation of compact fusion magnets for energy generation, high-energy physics magnets, gantry systems for proton cancer treatment facilities, and scientific magnets. These conductors will also benefit power transmission and magnetic energy storage systems for use in the power grid and within the Department of Defense.

* Information listed above is at the time of submission. *

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