Ein Energiespeicherprinzip auf Basis bipolarer poröser Polymernetzwerke

Abstract

Energiegeladen: Mit dem Ziel der Entwicklung eines Energiespeicherprinzips, das eine zwei‐ bis dreimal höhere spezifische Energie liefert als herkömmliche Hochleistungsbatterien, wurden ungeordnete, poröse, kovalente Triazin‐Polymernetzwerke als Kathodenmaterial genutzt. Sie zeigen eine einzigartige Faraday‐Reaktion, da sie sowohl in n‐ als auch in p‐dotierter Form vorliegen können (siehe Bild).

Novel Conjugated Ladder-Structured Oligomer Anode with High Lithium Storage and Long Cycling Capability

“…The first step is the enolation process occurs on the carbonyl group along with the lithiation process on the nitrogen atoms. 28,29,[47][48][49] The second step is ascribed to the addition of lithium ions onto the carbon centers to form a Li 6 C 6 or Li 5 C 5 complex, which is consistent with the investigations on polycyclic aromatic structures. 14, 28,29,42 This novel mechanism challenges the traditional lithiation method that each C 6 ring could only receive a lithium ion to form LiC 6 , and it could provide possibilities to develop high performance organic anode materials through molecular modification and nano-engineering.…”

Covalent Triazine‐based Frameworks—Tailor‐made Catalysts and Catalyst Supports for Molecular and Nanoparticulate Species

“…In this way, the electronic structure of the organic semiconductor can be influenced strongly by the composition, regarding to the triazine‐to‐benzene ratio. The ambipolar character of the CTF enables incorporation of both anions and cations within the same structure, offering electroneutrality . This is in fact very different to traditional battery systems, since both anion and cation intercalation can be applied for energy storage within the same material.…”

Organic Thiocarboxylate Electrodes for a Room‐Temperature Sodium‐Ion Battery Delivering an Ultrahigh Capacity

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Generally,o rganic electrodes accommodate redox centers and alkali-metal ions by functional groups such as carboxylate, [16] carbonyl, [17] organodisulfide, [18] thioether [19] and nitroxyl radicals, [20] while the aromatic cores donate or accept electrons during the redox process. Herein, for the first time,wereport afamily of sodiumion battery electrodes obtained by replacing stepwise the oxygen atoms with sulfur atoms in the carboxylate groups of sodium terephthalate whichi mproves electron delocalization, electrical conductivity and sodium uptake capacity.T he versatile strategy based on molecular engineering greatly enhances the specific capacity of organic electrodes with the same carbon scaffold.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Generally,o rganic electrodes accommodate redox centers and alkali-metal ions by functional groups such as carboxylate, [16] carbonyl, [17] organodisulfide, [18] thioether [19] and nitroxyl radicals, [20] while the aromatic cores donate or accept electrons during the redox process. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Generally,o rganic electrodes accommodate redox centers and alkali-metal ions by functional groups such as carboxylate, [16] carbonyl, [17] organodisulfide, [18] thioether [19] and nitroxyl radicals, [20] while the aromatic cores donate or accept electrons during the redox process.…”