화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO))
권호 45권 1호
발표분야 전력산업분야 고분자 복합소재 개발 및 응용
제목 Carbon-Copper Composite Wires for High Performance Electrical and Mechanical Cables
초록 Recent development in mobile electronic devices and electric vehicles requires electrical wires with reduced weight as well as enhanced stability. In addition, since electric energy is mostly generated from power plants located far from its consuming places, the mechanically stronger and higher electric power transmission cables are strongly demanded. However, there has been no alternative materials that can practically replace copper materials. Here, we report a method to prepare ultra-strong carbon-Cu core-shell wires with significantly enhanced electrical and mechanical properties. The core carbon nano-material based fibers (CFs) are synthesized by chemical vapor deposition (CVD), followed by electroplating of Cu shells, where the large surface area of CFs in contact with Cu maximizes the mechanical toughness of the cores-shell wires. At the same time, the unique electrical and thermal characteristics of graphene allows ~10 times higher current density limit, providing more efficient and reliable delivery of electrical energies through the CFs-Cu wires. We believe that our results would be useful to overcome the current limit in electrical wires and cables for light-weight, energy-saving and high-power applications.
저자 배수강
소속 한국과학기술(연)
키워드 carbon nano-material based fibers; copper; electroplating; tensile strength; ampacity (maximum current density)
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