AUTHOR=Zhao Taocheng , Hu Zheng TITLE=Opportunities and Challenges for the Development of Ultra-Thin Heat Pipe JOURNAL=Frontiers in Energy Research VOLUME=10 YEAR=2022 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.923454 DOI=10.3389/fenrg.2022.923454 ISSN=2296-598X