Fig. 2: Selected structural parameters obtained from Raman and SAXS data and schematic showing proposed effects of ball-milling on the microstructure of hard carbon. | Nature Communications

Fig. 2: Selected structural parameters obtained from Raman and SAXS data and schematic showing proposed effects of ball-milling on the microstructure of hard carbon.

From: Electron paramagnetic resonance as a tool to determine the sodium charge storage mechanism of hard carbon

Fig. 2: Selected structural parameters obtained from Raman and SAXS data and schematic showing proposed effects of ball-milling on the microstructure of hard carbon.

a ID1/IG and b La values calculated from Raman spectroscopy data; and c D’ values calculated from SAXS data for pristine and ball-milled HC700 and HC1000 samples. d Schematic showing the effects on open and closed porosity in HC samples after the ball-milling treatment. Source data are provided as a Source Data File.

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