Second generation (2G) superconductors conductors are the enabling technology for ultra-high energy particle accelerators and compact fusion reactors, which would be impossible using the traditional superconductors. However, the superconducting layer in a 2G conductor is a thin brittle ceramic that can be easily damaged. This is why the 2G conductors are available in length is not enough to manufacture a practical magnet. We propose development of a new type of 2G superconducting cable that features two innovations: (i) small diameter and compatibility with the established automated wire layup methods, (ii) the cable length is unlimited. The key innovation is the distributed filament splicing made possible by the exfoliated superconductor technology. Multiple filaments can be continuously layered into a cable and joined with a thin layer of solder to form a distributed ultra- low resistance splice. During the Phase I effort, we will develop a method of rapid (
