Among the three isomeric molecules, 1,3-cyclohexanedione was observed to possess the most negative electrode potentials (up to −0.6 V vs. Ag|AgCl) and the widest pH operating range (pH 1–5) for reversible electrochemical ehavior.
Since p-type materials are naturally characterized by a high redox potential, finding those suitable to act in negative electrodes for the assembly of an anion-ion battery can be difficult. One specific backbone stands out: the 4,4-bipyridinium one, also known as viologen (Fig. 4 n), because of its low redox potential .
Use the link below to share a full-text version of this article with your friends and colleagues. Six pack: Cyclohexanehexone (C 6 O 6) is synthesized and applied as a cathode material in lithium-ion batteries that exhibit an ultrahigh capacity of 902 mA h g −1 (1533 Wh kg −1 ).
Herein we report the synthesis and application of cyclohexanehexone (C 6 O 6 ), which exhibits an ultrahigh capacity of 902 mA h g −1 with an average voltage of 1.7 V at 20 mA g −1 in LIBs (corresponding to a high energy density of 1533 Wh kg −1 ).
In this way, they become versatile electrodes for new electrochemical devices. Cyclohexanehexone (or triquinoyl) is one of the most energy-intensive organic molecules (theoretical capacity 957 mAh g −1) , but being unstable is used only in the form of crystalline hydrate.
To summarize this section, the 1,3-cyclohexanedione molecule was observed to have a redox electrode potential of up to −0.6 V vs. Ag|AgCl, which is more negative than those for the other isomeric molecules. Additionally, the operating pH (pH 1.5–5) is also wider than those for the 1,2- and 1,4-cyclohexanediones (pH 1.5–2).