Table . Adsorption capacities (in mmol kg -1 ) and energy consumption (in kJ mol -1 ) for two cells that were cycled with first a negative charging protocol, then positive, then switching. Each cell was assembled and run by a different researcher to minimize biases. Cell A1 had both electrodes soaked; cell B1 had only electrode not exposed to gas soaked. . Adsorption capacities (in mmol kg -1 ) and energy consumption (in kJ mol -1 ) for two cells that were cycled with first a positive charging protocol, then negative, then switching. Each cell was assembled and run by a different researcher to minimize biases. Cell A2 had both electrodes soaked; cell B2 had only electrode not exposed to gas soaked.