AUTHOR=Xia Guanglin , Zhou Tengfei , Yu Xuebin TITLE=Editorial: Hierarchical Materials for Advanced Energy Storage JOURNAL=Frontiers in Chemistry VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.601947 DOI=10.3389/fchem.2020.601947 ISSN=2296-2646