Extended Data Table 1 Average surface area, pore volume (micropores and mesopores) of different carbon materials, and the first discharge capacity of Na/Cl2 battery using AB, KJ and aCNS as the positive electrode

From: Rechargeable Na/Cl2 and Li/Cl2 batteries

  1. AB was commercially available acetylene black (Soltex, Acetylene Black 50%-01) and KJ was commercially available Ketjenblack carbon black (Ketjenblack EC-600JD). BET surface area and pore volume were measured by 2020 Accelerated Surface Area and Porosimetry System from Micromeritics. Before each measurement, the appropriate amount of carbon (about 0.14 g) was weighed and placed in the instrument for degas at 350 °C. After degassing, the weight of the carbon was measured again and this weight was input into the software for final surface-area and porosity analysis. In the final analysis, the evacuation time was set to be 6 h and dose amount was set to be 10 cm3 g−1 standard temperature and pressure. After the measurement was done by the instrument, the surface area and porosity were reported. See Methods for details.
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