Figure 2: Li-O2 cell performance in heme-containing electrolyte. | Nature Communications

Figure 2: Li-O2 cell performance in heme-containing electrolyte.

From: Heme biomolecule as redox mediator and oxygen shuttle for efficient charging of lithium-oxygen batteries

Figure 2

(a) Initial charge/discharge curves of the MWCNT electrode in 1 M LiClO4+TEGDME and 1 M LiClO4+TEGDME+Heme solutions in a voltage window between 4.3 and 2.35 V at a current density of 100 mA g−1carbon; (b) galvanostatic intermittent titration curves of the MWCNT electrode in 1 M LiClO4+TEGDME and 1 M LiClO4+TEGDME+Heme solutions, which were acquired with a current density of 50 mA g−1 for 24 min and a 120 min time interval during the 1st charging; (c) Voltage versus time curves of the MWCNT electrodes in 1 M LiClO4+TEGDME+Heme solution at various cycles under a specific capacity limit of 600 mAh g−1 between 4.5 and 2.3 V at a current density of 200 mA g−1carbon; (d) Electrochemical impedance spectroscopy (EIS) spectra of the MWCNT electrode in 1 M LiClO4+TEGDME and 1 M LiClO4+TEGDME+Heme solutions after the 1st, 5th, and 10th discharge cycle.

Back to article page