摘要:
The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX?1O)N-(OX2¿F) wherein X?1 and X2¿ are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.
摘要:
The invention concerns ionic compositions with high ionic conductivity, comprising a salt with delocalized anionic charge. An ionic composition comprises a salt dissolved in a solvent and has a conductivity higher than 10?-5 S.cm-1¿ between -30 °C and 150 °C. The cation is a proton, a hydronium, a hydroxonium, a nitrosonium NO+, an ammonium -NH¿4?+, or an organic or organometallic metal cation. The anion is a carbanion bearing a perfluorinated substituent or a substituent bearing at least a F on the α carbon of the carbanion, and two non-perfluorinated electroattractive substituents. Said composition can be used as electrolyte in electrochemical devices, as catalyst for chemical reactions, as photochemical or thermochemical initiator for polymerisation or cross-linking reactions.
摘要:
The invention concerns novel electrode materials derived from polyquinoid ionic compounds and their uses such as in electrochemical generators. It concerns in particular compounds such as a rhodizonic acid salt; a rufigallic acid salt; an ellagic acid salt; a thiocyanic acid polymer or 1-cyano-2-mercaptoacetylene; a polymer containing the units derived from ketopyridine; an alternate polymer containing benzoquinone and pyrazine units; a 1,2-dimercaptocyclobutenedione (dithiosquaric) acid salt; a 1,5-dihydropyrimido(5,4d)pyrimidine-2,4,6,8(3H,7H)-tetrone acid salt; a dicarboxylic acid salt whereof the groups are linked by conjugate segments; a polyamide derived from a dicarboxylic acid whereof the groups are linked by conjugate segments. The invention also concerns all the oxidation products of said compounds.