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Thermal batteries based on inverse barocaloric effects.

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.

SUBMITTER: Zhang Z

PROVIDER: S-EPMC9937572 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Thermal batteries based on inverse barocaloric effects.

Zhang Zhe Z Li Kuo K Lin Shangchao S Song Ruiqi R Yu Dehong D Wang Yida Y Wang Jingfan J Kawaguchi Shogo S Zhang Zhao Z Yu Chenyang C Li Xiaodong X Chen Jie J He Lunhua L Mole Richard R Yuan Bao B Ren Qingyong Q Qian Kun K Cai Zhuangli Z Yu Jingui J Wang Mingchao M Zhao Changying C Tong Xin X Zhang Zhidong Z Li Bing B

Science advances 20230217 7

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 (NH<sub>4</sub>SCN). Thermal charging is initialized upon pressurization through an order-to-disorder phase transition, and the discharging of 43 J g<sup>-1</sup> takes place at depressurization, which is 11 times more than the input mechanical energy. The thermodynamic equilibrium nature of the pressure-re ...[more]

PMID: 36800425

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