Coated high-temperature superconducting wire and high-temperature superconducting coil including the same

摘要

In a coated high-temperature superconducting wire (1) in which a superconducting yttrium-based wire (high-temperature superconducting wire) (2) having a rectangular cross section is coated by an insulating layer (6), the insulating layer (6) is an electrodeposited film made of block copolymerized polyimide which contains siloxane bonds in a polyimide main chain and which has molecules with anionic groups. A coil formed from the superconducting yttrium-based wire (2) is impregnated with epoxy resin, and the epoxy resin is cured. The coil is configured such that the epoxy resin is completely separated from the superconducting yttrium-based wire (2) by the insulating layer (6).