Journal: Chemistry of Materials
Article Title: Iron-Loaded Carbon Spherogels as Sustainable Electrode Materials for High-Performance Lithium-Ion Batteries
doi: 10.1021/acs.chemmater.5c02442
Figure Lengend Snippet: Post-mortem cryo-scanning transmission electron microscopy and cryo-TEM-electron energy loss spectroscopy analysis of the CS_Fe_Med electrode after 230 cycles. (A) Scanning transmission electron micrograph and corresponding elemental maps of Li, C, O, F, and their overlap. (B–D) Electron energy loss spectroscopy spectra of the area in (A) including Li–K edge (B), C–K and O–K edges (C), and F–K and Fe–L 2,3 edges (D). (E) Low- and high-magnification cryo-scanning transmission electron micrographs and electron energy loss spectroscopy spectra from the marked region, showing the Li–K edge (F), C–K and O–K edges (G), and F–K and Fe–L 2,3 edges (H).
Article Snippet: The sample was maintained at a temperature of –170 °C in a GATAN Elsa cryo-TEM transfer holder.
Techniques: Transmission Assay, Electron Microscopy, Spectroscopy