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Superconductor Technologies Inc. (STI) (Nasdaq: SCON) was awarded a U.S. Patent enabled by STI’s proprietary superconducting wire manufacturing method. This patented process improves Conductus® wire’s performance in the presence of a strong magnetic field.
U.S. Patent No. 9,564,258 entitled “Coated Conductor High Temperature Superconductor Carrying High Critical Current Under Magnetic Field By Intrinsic Pinning Centers, And Methods Of Manufacture Of Same” from the U.S. Patent and Trademark Office (USPTO), associated with U.S. Patent No. 9,362,025 announced in June 2016, provides additional protection for STI’s unique manufacturing process.
“This new patent protects the foundation from which we will build high performance wire for our customers,” said Jeff Quiram, STI's President and CEO. “The flexibility provided by our proprietary manufacturing process enables STI to build superconducting wire in very unique ways.”
The ability to carry high electrical current in the presence of a strong magnetic field is a key enabler for the superconducting applications of the future. Using a technique called pinning, superconducting wire performance is dramatically improved. The traditional approach is to add more elements when manufacturing the superconducting layer, thereby increasing the complexity of an already challenging process.
Quiram continued, “STI has demonstrated the ability to incorporate pinning into our superconductor without using additional elements. This technique is now protected, allowing STI to meet the needs of our customers without the cost and difficulty of an increasingly complex manufacturing process. We believe that this will allow us to deliver the highest performing wire with high manufacturing yields, enabling us to be a market leader. Our proprietary RCE-CDR process makes Conductus wire ideal for applications such as motors, generators, MRI and NMR machines that require high in-field performance. We are excited about the growing demand for more efficient alternatives to traditional materials and designs, as well as our positioning in the industry.”
Reactive Co-evaporation and Cyclic Deposition Reaction Rare Earth, Barium, Copper Oxide (ReBCO) materials are recognized as a superior superconductor by offering better performance in a magnetic field. STI’s RCE-CDR process grows a ReBCO superconductor film onto a flexible template. This process requires accurate temperature, uniform pressure, precise ratios of elements and the presence of oxidizing atmospheres to grow high performance superconducting materials. The company’s RCE-CDR system is scaled for large batch operation to insure every portion of superconducting wire has uniform material properties.
