Japan Introduces Ultrathin High Temperature Superconducting Cables

Japan Introduces Ultrathin High Temperature Superconducting Cables A joint R&D team consisting of the Japan Institute of Physical Chemistry and Chiba University has succeeded in developing the next generation ultra-thin high-temperature superconducting cable, which is one-tenth the thickness of the insulating part.

The joint group used the same polyimide electro-deposition as metal plating to form an extremely thin polyimide insulator film on the surface of the conductive wire. The thickness of the insulator is only 4 microns, which is one-tenth of the thickness of the insulating part of the current high-temperature superconducting cable. After testing, the section insulation ratio reaches less than 10%, which is more than 80% lower than the existing high-temperature superconducting cable; the superconducting coil made current density increases more than 2 times, and the volume can be reduced by 4/5. The manufacturing process is also more simplified than the current method of polymer insulation tape wrapping. Small superconducting coils and several kilometers of high-temperature superconducting cables can be manufactured upon request.

At present, high-temperature superconducting cables are generally in the form of thin strips having a width of 4 mm to 5 mm and a thickness of 100 μm to 150 μm. The thickness of the insulation part and the thickness of the conductive wire are basically the same, each being about 50 microns. The thicker insulation layer has a certain influence on the current density, making it difficult to further miniaturize the superconducting coil volume. This method enables miniaturization and low-cost manufacturing of devices such as nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI).

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Product features
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2V Battery Restore System

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