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Thermally Regenerative Electrochemical Cycle for Low-Grade Heat Harvesting
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-09-13 00:00:00 , DOI: 10.1021/acsenergylett.7b00568
Caitian Gao 1 , Seok Woo Lee 1 , Yuan Yang 2
Affiliation  

Tremendous low-grade heat (i.e., <130 °C) exists in solar thermal, geothermal, and industrial waste heat. Efficient conversion of low-grade heat to electricity can recover these wasted resources and reduce energy consumption and carbon footprint. Along with thermoelectrics and thermogalvanic cells, thermally regenerative electrochemical cycle (TREC) has attracted wide attention recently, because it has a high temperature coefficient (>1 mV/K), high efficiency, and low cost. In TREC, conversion to electricity is realized by charging–discharging an electrochemical cell at different temperatures. In this Perspective, we will discuss the principle of TREC and recent progress, such as new material systems and mechanisms. More importantly, we will give our opinions on the challenges and future directions of this field, including fundamental understanding, material design, and system engineering.

中文翻译:

用于低等级热量收集的热再生电化学循环

太阳热能,地热能和工业废热中存在大量的低级热量(即<130°C)。有效地将低级热量转化为电能可以回收这些浪费的资源,并减少能源消耗和碳足迹。与热电和热原电池一起,热再生电化学循环(TREC)最近因其具有高的温度系数(> 1 mV / K),高效和低成本而备受关注。在TREC中,通过在不同温度下对电化学电池进行充电和放电来实现向电的转换。在此观点中,我们将讨论TREC的原理和最新进展,例如新的材料系统和机制。更重要的是,我们将对该领域的挑战和未来方向发表意见,
更新日期:2017-09-13
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