Pillararene/Calixarene-based systems for battery and supercapacitor applications

High-performance all-solid-state electrolyte for sodium batteries enabled by the interaction between the anion in salt and Na3SbS4

“…Similar to most organic electrode materials, PTCDA, with a relatively low molecular weight, shows high dissolution in organic liquid electrolyte and thereby poor cycling stability. [55][56][57] As shown in Fig. S15 †, the capacity retention of PTCDA in a common 1 M NaPF 6 /diglyme electrolyte is only 63% aer 60 cycles.…”

Challenges and advances of organic electrode materials for sustainable secondary batteries

“…[43] However, as shown in Figure 5A, C4Q can combine with no more than four multivalent ions (Mg 2+ or Zn 2+ ) owing to the charge density and steric hindrance factors, and even less for F I G U R E  Common OEMs with different reaction types that of [Al(OTF)] 2+ , which is ascribed to the strong coulombic interaction of Al 3+ with anions in the electrolyte. [44,45] The p-type OEMs (such as phenazine (PZ) and carbazole derivatives) can interact with anions (such as PF 6 -, ClO 4 -, I -, BF 4 -, TFSI -) after their oxidized reaction, and they usually exhibit higher discharge potential. [46] The recently reported phenothiazine-based cathode material displays an average redox voltage of 3.7 V (vs. Li + /Li), which is comparable to the conventional inorganic cathode materials.…”

“…[ 43 ] However, as shown in Figure 5A, C4Q can combine with no more than four multivalent ions (Mg 2+ or Zn 2+ ) owing to the charge density and steric hindrance factors, and even less for that of [Al(OTF)] 2+ , which is ascribed to the strong coulombic interaction of Al 3+ with anions in the electrolyte. [ 44,45 ]…”

Pyridine-based benzoquinone derivatives as organic cathode materials for sodium ion batteries

“…Moreover, their structures can be easily modified, and thus have been widely investigated since their first report as electrode materials in 1969. [12][13][14][15][16][17][18][19][20] As the smallest conjugated carbonyl compound, p-benzoquinone offers a high theoretical capacity in the quinone system, and it is also attractive because of its fine electronic stability and high energy density. [21][22][23][24] However, p-benzoquinone was faced with serious dissolution problems in electrolyte, which seriously affects the life span of the batteries.…”