title: In situ chemical mapping of a lithium-ion battery using full-field hard X-ray spectroscopic imaging.
abstract: In situ tracking of chemical phase transformation, mapping, and composition information of a battery with CuO as the anode was performed with quantitative analysis at sub-30 nm resolution with a 40 × 40 μm field of view using transmission X-ray microscopy combined with spectroscopy. A size-dependent and core-shell lithiation-delithiation mechanism was suggested for the electrochemical reaction.
authors.affiliation: Photon Science Directorate, Brookhaven National Laboratory, 75 Brookhaven Avenue Building 725D, Upton, NY, USA.
authors.forename: Jiajun
authors.initials: J
authors.lastname: Wang
authors.forename: Yu-chen Karen
authors.initials: YC
authors.lastname: Chen-Wiegart
authors.forename: Jun
authors.initials: J
authors.lastname: Wang