Phase change energy storage low-melting-point alloy with high energy storage density and high conductivity and preparation method thereof

• Main Authors: BAO XINYI, FEI HUANGXIA, XU LINQING, WANG YU, FANG YI
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a phase change energy storage low-melting-point alloy with high energy storage density and high conductivity and a preparation method thereof. The phase change energy storage low-melting-point alloy with high energy storage density and high conductivity comprises the following components in percentages by weight: 15.6-16.8% of Sn, 11.9-13.3% of In, 17.8-19.3% of Pb, 6.9-8.2% of Cd, 42.5-45.3% of Bi and 0.3-0.9% of graphene-plated copper powder. The preparation method comprises the following steps: vacuumizing; pressurizing, electrifying and smelting; and heating in a water bath and clamping a material. According to the low-melting-point alloy material obtained by the invention, the liquid phase heat conductivity reaches 58W/mK above which is over doubled compared with that of a liquid alloy phase change material and is far higher than that of a conventional phase change material. 本发明公开了种高储能密度高导热率的相变储能低熔点合金及其制备方法，所述高储能密度高导热率的相变储能低熔点合金中包含以下重量百分含量的各组分：15.6%~16.8%的Sn，11.9%~13.3%的In，17.8%~1