AI Article Synopsis

  • The effective use of sustainable energy sources is key to achieving a CO-neutral economy, particularly with abundant low-grade waste heat being hard to convert into electricity.
  • Researchers have developed a new electrochemical cell that can directly convert ambient temperature changes into electrical energy through intercalation reactions.
  • This innovative cell combines the benefits of thermo-electrochemical cells and pyroelectric energy harvesting, paving the way for better utilization of low-grade waste heat.

Article Abstract

The effective use of energy from sustainable sources is considered a crucial step on the way to a CO-neutral economy. Low-grade waste heat (<100 °C) is widely and ubiquitously available, but difficult to convert into electrical energy with current technologies. Here, we demonstrate an electrochemical cell capable of directly converting ambient temperature fluctuations into electricity. Based on intercalation reactions with different entropies, any temperature change leads to a cell voltage and electrical energy can be extracted. The new cell concept features the advantages of thermo-electrochemical cells and pyroelectric-like energy harvesting, which opens a wide range of possibilities for effective and sustainable use of low-grade waste heat.

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Source
http://dx.doi.org/10.1039/d1cc06121fDOI Listing

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