Electrocaloric cooling demonstrates direct electricity utilization and high energy efficiency, and is often proposed as an environmentally benign, solid-state alternative to the conventional vapor compression cooling technology. As a result, the fabrication of effective electrocaloric materials and engineering of electrocaloric cooling devices have attracted increasing attention in the cooling community. However, the limited material adiabatic temperature change under safe operation field poses a major challenge to practical electrocaloric cooling device development, since real-world applications usually require device temperature span over 20 K. This perspective presents recent efforts devoted to design electrocaloric cooling devices based on active heat regeneration and cascading approaches; both strategies have achieved significant device temperature lift ~10 K with adiabatic temperature change of 2~3 K. The strategies discussed in this work are broadly applicable to the design of efficient and compact cooling systems.

电热冷却显示了直接的电力利用和高能源效率，并且经常被提议作为对环境的有益的固态替代传统的蒸气压缩冷却技术。结果，有效的电热材料的制造和电热冷却装置的工程设计在冷却界引起了越来越多的关注。然而，由于实际应用中通常要求设备温度跨度超过20 K，因此在安全操作环境下有限的材料绝热温度变化对实际的电热冷却设备提出了重大挑战。主动热再生和级联方法；