AUTHOR=Meng Haofei , Gao Wei TITLE=Potential and Challenges of Thermogalvanic Cells for Low-Grade Heat Harvesting JOURNAL=Frontiers in Energy Research VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.958009 DOI=10.3389/fenrg.2022.958009 ISSN=2296-598X