Coin cells were discharged to desired voltage points, immediately disconnected, and disassembled inside an Ar-filled glove box (<0.5 ppm H2O, <1 ppm O2). The sodiated HC was scraped off the aluminum foil, and then stored and sealed with epoxy in 1.5 mm OD quartz capillaries to prevent both O2 and moisture exposure. The capillaries were transported to the NSLS-II and measured. applied to the raw data, which was reduced using the pyFAI package. Data was corrected by transmission and the scattering from the empty capillary was subtracted from the sample measurements.