Patent ID: 8809685

Claim:
A superconductive connecting device for end pieces of at least two superconductors, each of the at least two superconductors including a matrix made of normally conductive material and at least one conductor lead made of superconductive MgB 2 (magnesium diboride) embedded therein, the superconductive connecting device comprising: a connecting region in a sleeve or bushing, wherein the at least one conductor lead of each of the at least two superconductors is arranged in the connecting region and end pieces of each of the at least two superconductors is completely stripped of matrix material, wherein MgB 2 or its base materials is present as a superconductive contacting material which is located at least in partial regions between the conductor leads, wherein the conductor leads are directly sheathed in each case with a barrier layer made of a barrier material different from the matrix material, and wherein at least one end-face connecting region is kept free of the barrier material which surrounds the conductor leads and the conductor leads are directly sheathed with barrier material in at least part of length sections where the conductor leads are stripped of the matrix material.