Fig. 2: Four-electron aqueous Zn | |I2 batteries with different additives as activators. | Nature Communications

Fig. 2: Four-electron aqueous Zn | |I2 batteries with different additives as activators.

From: Carbon-halogen bond substitution enables high-utilization four-electron iodine redox in noncorrosive dilute electrolytes

Fig. 2: Four-electron aqueous Zn | |I2 batteries with different additives as activators.

a Molecular structures of organic additives with different R groups. b CV curves of Zn | |I2 batteries (I2 loading: 3 mg cm-2; cut-off voltage: 0.3 - 1.75 V) in electrolytes with different additives at 1 mV s-1. c The corresponding GCD curves at 1 A g-1. d Correlation of I2 utilization with σ values of R in organic additives. e, f Discharge curves of Zn | |I2 batteries at high rates of 1-60 A g-1 and the corresponding distribution of I2 utilizations (Inset: BrAce and ZnBr2 electrolytes before and after cycling). g Ragone plot comparison of Zn | |I2 batteries with other conversion-type systems.

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