All-polythiophene rechargeable batteries

Nanophase-segregation in the dielectric layer enhances the charge storage capacity of polymeric electrochemical supercapacitors

“…The electrode materials for electrochemical double-layer capacitors mainly include carbonaceous species [10,11], while transition metal oxides [10,12] and conducting polymers [10,13,14] (CPs) are commonly used as electrode materials for pseudocapacitors. Because of its excellent performance, poly(3,4-ethylenedioxythiophene (PEDOT; Scheme 1) films are frequently used as electrodes for the fabrication of organic electrochemical supercapacitors (OESCs) [15][16][17][18][19][20][21]. PEDOT, which is commercialized under the trade name of Clevios ™ (Heraeus) and Baytron ® (from H. C. Starck), exhibits low band gap, easiness to stabilize the oxidized (also named p-doped) state, high conductivity and electrochemical activity, and excellent pseudocapacitance behavior [15][16][17][18][19][20][21][22][23][24][25][26][27].…”

“…Because of its excellent performance, poly(3,4-ethylenedioxythiophene (PEDOT; Scheme 1) films are frequently used as electrodes for the fabrication of organic electrochemical supercapacitors (OESCs) [15][16][17][18][19][20][21]. PEDOT, which is commercialized under the trade name of Clevios ™ (Heraeus) and Baytron ® (from H. C. Starck), exhibits low band gap, easiness to stabilize the oxidized (also named p-doped) state, high conductivity and electrochemical activity, and excellent pseudocapacitance behavior [15][16][17][18][19][20][21][22][23][24][25][26][27]. The latter been attributed to the coexistence of both (i) the redox mechanism, according to which charge is stored by electron transfer from the dopant to the polymer (i.e.…”

“…The latter been attributed to the coexistence of both (i) the redox mechanism, according to which charge is stored by electron transfer from the dopant to the polymer (i.e. ion pairing stabilizes the charge); and (ii) the double-layer behavior of doped PEDOT chains, which allows resonance throughout the conjugated structure of the polymeric backbone [15][16][17][18][19][20][21][22].…”

Scalable Synthesis and Multi‐Electron Transfer of Aniline/Fluorene Copolymer for Solution‐Processable Battery Cathodes

“…[1][2][3][4][5][6] Over the past decades, various kinds of CPs including polyaniline, [7,8] polypyrrole, [9,10] and polythiophene [11,12] have been investigated as cathode materials for lithium ion batteries. The low reversible doping levels (0.3-0.5) of most of these CPs, however, have resulted in low capacities that limit their practical use.…”

Preparation and Characterization of Poly(N-Methylpyrrole)/MoO3 Hybrid Composites

“…For example, the oxidation potential of the former is higher than that of the latter. [1] Furthermore, the electrochemical and electrical properties of PNMPy are very poor with respect to those of PPy, [1][2][3] which has been attributed to the higher cross-linking of the former. [3] Thus, although PPy displays some irregularities in the inter-ring linkages, PNMPy tends to stabilize branched molecules with abundant irregularities.…”