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.
摘要:
The invention concerns an ionic compound of formula [R?1X1(Z1)-Q--X2(Z2)-R2]¿m Mm+ in which Mm+ is a cation of valence m, each of the X?i is S=Z3, S=Z4, P-R3 or P-R4¿; -Q is N, CR5, CCN or CSO¿2R?5, each of the Zi is =O, =NC N, =C(C N)¿2?, =NS(=Z)2R?6¿ or =C[S(=Z)¿2R?6]2, each of the Ri, is Y, YO-, YS-, Y¿2?N- or F; Y represents a monovalent organic radical or Y is a repeat unit of a polymeric fabric. The compounds are useful for preparing materials with ionic conduction or electrolyte, as catalysts and for doping polymers.
摘要:
The invention relates to a process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which comprises providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt comprising an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. The invention also relates to lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.
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 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.