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Splicing of Superconductor Materials

Brookhaven National Laboratory

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Technology Marketing Summary

Low resistance splices are needed to join high temperature superconducting (HTS) materials in order to fabricate large-scale magnets for example, for accelerator, energy storage and medical applications. If the splice resistance is too high, the thermal, mechanical and electrical properties stability of the magnets can deteriorate leading to unnecessary power loss and distortion of the magnetic field. Thus, a novel method to prepare ultra-low resistance HTS splices was developed.


This novel method can be used to prepare ultra-low resistance splices that are mechanically and electrically robust at temperatures in the range of 77 K and 4 K. Additionally, the electrical splice performance was reproducible after several thermal and power cycles without degradation of its electrical characteristics.


High quality HTS splices were obtained that had reproducible performance with resistance as low as one nano-ohms.

Applications and Industries

Second generation HTS is currently available in the tape form that could be used to fabricate devices such as transformers, generators, motors, MRI and NMR instruments. Also, it can be applied in the fabrication of magnets for various commercial and research applications.

Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
BSA 14-13PrototypeAvailable03/30/201503/30/2015

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To: Poornima Upadhya<>