According to a report by Nihon Nihon Shimbun, Professor Emeritus of Kyushu University of Technology in Japan, Mr. Asano Matsushita, has recently developed efficient superconducting transmission cables with lower impedance by improving the winding method of superconducting wires during the cable manufacturing process.

Currently, copper transmission cables are widely used, but due to the presence of transmission resistance, they may lose a certain amount of electrical energy during the transmission process. In order to reduce transmission losses, some countries have developed superconducting transmission cables that use liquid nitrogen to form a low temperature environment of around -190 ℃, using superconducting materials. However, superconducting transmission cables generate a magnetic field in the vertical direction of the superconducting wire current during use, increasing the loss of the transmission cable. Mr. Asano Matsushita, an honorary professor at Kyushu University of Technology, has developed a winding method based on the DC transmission superconducting cable, which effectively improves the transmission performance of the superconducting transmission cable by calculating the magnetic field direction of each layer of superconducting wire around the copper core wire of the cable to be parallel to the current direction. The research results indicate that under the same conditions, the current carried by the new high-efficiency superconducting transmission cable is three times that of traditional superconducting transmission cables and 20-30 times that of ordinary copper cables. This research result has been published in the British Journal of Science

Superconductor Science and Technology, 2012, Issue 12. The successful development of new high-efficiency superconducting transmission cables will effectively improve the transmission efficiency of long-distance and large-capacity DC transmission networks, providing strong support for the construction of future new power grids.