Fig. 4: Cycling performance of the BNQS cathode (versus slurry-cast cathode).

a Cycling performance at charge/discharge current density of 0.05 C/0.1 C (=0.35 mA cm−2/0.7 mA cm−2) and voltage range of 3.0 –4.2 V under a limited amount of electrolyte (E/C ratio of 2.3 g Ah−1), in which the coin cell containing the cathode with an areal-mass-loading of 36 mg cm−2. b Charge/discharge profiles of the cells at 1 st and 80th cycle.