Liquid-based electrochemical systems for the conversion of heat to electricity

Shien Ping Feng, Meng Ni, Chun Cheng, Sijia Wang

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review


Ubiquitous low-grade heat energy is usually wasted without use, which could be valuable for converting it into electricity. Energy conversion from primary energy carriers to the final energy of use is subject to considerable losses equivalent to about 70% of the global primary energy consumption. The major loss is identified as waste heat and 63% of them are regarded as low-grade heat below 100°C. Moreover, all of the waste heat in food processing, and commercial and building sectors almost belongs to the low-grade waste heat. How to effectively and economically recover the low-grade heat is critical to improve the overall energy efficiency and alleviate heat island effects for a sustainable future. Conversion is however still a great challenge because converting low-grade heat to electricity is inefficient due to the low-temperature differential and the distributed nature of the heat sources.

Original languageEnglish
Title of host publicationLow-Grade Thermal Energy Harvesting
Subtitle of host publicationAdvances in Materials, Devices, and Emerging Applications
Number of pages32
ISBN (Electronic)9780128236901
ISBN (Print)9780128236918
Publication statusPublished - 1 Jan 2022


  • Electrochemical cycle
  • Low-grade heat energy
  • Thermodiffusion
  • Thermogalvanic cells

ASJC Scopus subject areas

  • General Engineering
  • General Materials Science


Dive into the research topics of 'Liquid-based electrochemical systems for the conversion of heat to electricity'. Together they form a unique fingerprint.

Cite this