Thermal batteries based on inverse barocaloric effects
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Date
2023-02
Journal Title
Journal ISSN
Volume Title
Publisher
Science Advances
Abstract
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 thermodynamic 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 substantially advance the ability to take advantage of waste heat. Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
Description
Keywords
Waste heat, Thermal batteries, Ammonium thiocyanates, Pressurization, Depressurization, Mechanical energy storage equipment
Citation
Zhang, Z., Li, K., Lin, S., Song, R., Yu, D., Wang, Y., Wang, J., Kawaguchi, S., Zhang, Z., Yu, C., Li, X., Chen, J., He, L., Mole, R., Yuan, B., Ren, Q., Qian, K., Cai, Z., Yu, J., Wang, M., Zhao, C., Tong, X., Zhang, Z., Li, B. (2023). Thermal batteries based on inverse barocaloric effects. Science Advances, 9(7), eadd0374. doi:10.1126/sciadv.add0374.