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It’s not about the mass

Electrocaloric cooling devices traditionally comprise sub-millimetre-thick ceramic working bodies surrounded by relatively massive apparatus. Now, cooling devices that are each based on a thin polymer layer have been stacked to yield a composite lightweight device that pumps heat across a wide temperature span.

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Fig. 1: Miniaturization of electrocaloric prototypes.


  1. Moya, X. & Mathur, N. D. Science 370, 797–803 (2020).

    Article  Google Scholar 

  2. Sinyavsky, Y. V. et al. Ferroelectrics 90, 213–217 (1989).

    Article  Google Scholar 

  3. Sinyavskii, Y. V. & Brodyansky, V. M. Ferroelectrics 131, 321–325 (1992).

    Article  Google Scholar 

  4. Sinyavskii, Y. V. Chem. Petrol. Eng. 31, 295–306 (1995).

    Article  Google Scholar 

  5. Meng, Y. et al. Nat. Energy (2020).

  6. Torelló, A. et al. Science 370, 125–129 (2020).

    Article  Google Scholar 

  7. Wang, Y. et al. Science 370, 129–133 (2020).

    Article  Google Scholar 

  8. Nair, B. et al. Nature 575, 468–472 (2019).

    Article  Google Scholar 

  9. Pecharsky, V. K. & Gschneidner, K. A. Jr J. Magn. Magn. Mater. 200, 44–56 (1999).

    Article  Google Scholar 

  10. Defay, E. et al. Nat. Commun. 9, 1827 (2018).

    Article  Google Scholar 

  11. Ma, R. et al. Science 357, 1130–1134 (2017).

    Article  Google Scholar 

Download references

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Correspondence to Xavier Moya or Neil D. Mathur.

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Competing interests

X.M. is director of research at Barocal Ltd.

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Moya, X., Mathur, N.D. It’s not about the mass. Nat Energy 5, 941–942 (2020).

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