AUTHOR=Palomares VerĂ³nica , Sharma Neeraj TITLE=Editorial: In-situ and In-operando Techniques for Material Characterizations During Battery Operation JOURNAL=Frontiers in Energy Research VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2019.00010 DOI=10.3389/fenrg.2019.00010 ISSN=2296-598X