Fig. 4: Characterization of chemical compositions on the cycled lithium metal electrodes by ToF-SIMS and XPS spectra. | Nature Communications

Fig. 4: Characterization of chemical compositions on the cycled lithium metal electrodes by ToF-SIMS and XPS spectra.

From: Suppressing electrolyte-lithium metal reactivity via Li+-desolvation in uniform nano-porous separator

Fig. 4: Characterization of chemical compositions on the cycled lithium metal electrodes by ToF-SIMS and XPS spectra.

a, c ToF-SIMS normalized (to maximum) depth profiling of several typical second ion fragments on the cycled lithium metal electrode surface of the pristine PP and Zr-MOCN protected areas, respectively. b, d ToF-SIMS chemical maps of second ion fragments with 1600 s of sputtering in the lithium metal electrodes cycled in the PP and Zr-MOCN protected areas, respectively. e–j XPS spectra of F, C and P elements recorded different time of argon ion sputtering at cycled lithium metal electrode surface of the pristine PP (upper panel) and Zr-MOCN (lower panel) protected areas, respectively. k, l The corresponding depth profiles of the atomic concentration of Li, F, C, and P elements.

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