PARC, A Xerox Company, 3333 Coyote Hill Rd., Palo Alto, CA 94304, USA.
Murata Manufacturing Co., Ltd., 1-10-1, Higashikotari, Nagaokakyo, Kyoto 617-8555, Japan.
Science. 2020 Oct 2;370(6512):129-133. doi: 10.1126/science.aba2648.
Electrocaloric (EC) cooling is an emerging technology that has broad potential to disrupt conventional air conditioning and refrigeration as well as electronics cooling applications. EC coolers can be highly efficient, solid state, and compact; have few moving parts; and contain no environmentally harmful or combustible refrigerants. We report a scalable, high-performance system architecture, demonstrated in a device that uses PbScTaO EC multilayer ceramic capacitors fabricated in a manufacturing-compatible process. We obtained a system temperature span of 5.2°C and a maximum heat flux of 135 milliwatts per square centimeter. This measured heat flux is more than four times higher than other EC cooling demonstrations, and the temperature lift is among the highest for EC systems that use ceramic multilayer capacitors.
电卡（EC）冷却技术是一种新兴技术，具有广泛的潜力来打破传统的空调和制冷以及电子产品冷却应用。EC 冷却器可以是高效的、固态的和紧凑的；具有很少的运动部件；并且不含有环境有害或可燃的制冷剂。我们报告了一种可扩展的、高性能的系统架构，该架构在使用 PbScTaO EC 多层陶瓷电容器的设备中得到了证明，这些电容器是通过制造兼容的工艺制造的。我们获得了 5.2°C 的系统温度跨度和 135 毫瓦/平方厘米的最大热通量。测量的热通量比其他 EC 冷却演示高四倍以上，而对于使用陶瓷多层电容器的 EC 系统，温度提升也最高。
