期刊
SCIENCE ADVANCES
卷 9, 期 7, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.add0374
关键词
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We propose and demonstrate a novel concept of thermal batteries, called barocaloric thermal batteries, which are based on the large inverse barocaloric effect of ammonium thiocyanate (NH4SCN). The thermal charging is initiated by pressurization and the discharging releases 43 J g-1 of energy, which is 11 times more than the input mechanical energy. The pressure-restrained heat-carrying phase ensures stable long-duration storage. These barocaloric thermal batteries, reinforced by their solid microscopic mechanism, are expected to significantly advance the utilization of waste heat.
To harvest and reuse low-temperature waste heat, we propose and realize an emergent concept-barocaloric thermal batteries based on the large inverse barocaloric effect of ammonium thiocyanate (NH4SCN). Thermal charging is initialized upon pressurization through an order-to-disorder phase transition, and the discharging of 43 J g-1 takes place at depressurization, which is 11 times more than the input mechanical energy. The thermo-dynamic equilibrium nature of the pressure-restrained heat-carrying phase guarantees stable long-duration storage. The barocaloric thermal batteries reinforced by their solid microscopic mechanism are expected to sub-stantially advance the ability to take advantage of waste heat.
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