fig9
Figure 9. (A) CE, (B) VE, (C) EE of the iron-lead single-flow batteries equipped with N115, H3020 and H3520, respectively, during a 200-cycle charge-discharge test; (D) Self-discharge of the batteries with H3020, H3520 and N115 membranes. CE: Coulombic efficiency; VE: voltage efficiency; EE: energy efficiency.
