Bis(fluorosulfonyl)Amide Anion Transfer at Graphite Electrode
To increase the capacities of hybrid capacitors, it is necessary to increase the amount of anions intercalated into graphite. In other words, low-stage graphite intercalation compounds (GICs) must be formed. For the electrochemical anion intercalation, low-stage GICs are synthesized at higher potential exceeding 4.5 V vs. Li+/Li and therefore, oxidative decomposition of electrolyte solutions are not negligible at such high-potential region. Here we report electrochemical intercalation/de-intercalation properties of various anions at graphite electrodes, and show the anion intercalation kinetics.