摘要:
Disclosed is a method for grafting a polymer onto the surface of a carbonate material with carboxyl, amine, and/or hydroxyl functions on its surface. Said material is placed in suspension in a solution including the polymer to be grafted, which has a carboxyl, amine, and/or hydroxyl function, said solution also being comprised of a polymer solvent. A process which stimulates the dehydration into a carboxyl function of an amine and/or hydroxyl function is then performed, and the polymer is grafted onto the carbonate material using ester or amide links. The invention can be used in the cathode or naode of an electrochemical generator, in polymer materials with low polar properties, in ink, and also as a conductive coating on flexible plastic used as an electrical contact, as electromagnetic shielding, or as static protection.
摘要:
Disclosed is a proton conductor in liquid form, comprised of a mixture of the following components: (a) a salt combined with a nitrogenated base along with an acid, according to formula (I), wherein Z1, Z2, Z3, and Z4, whether identical or different, represent a group -N= or -C(Zi)=, wherein Zi represents a hydrogen atom, a linear or branched alkyl radical with from 1 to 20 carbon atoms, a fluoroalkyl radical with from 1 to 20 carbon atoms, or an oxoalkyl or azaalkyl radical with from 1 to 20 carbon atoms, as long as at least one and at most two of the groups Z1, Z2, Z3, and Z4 represent -N=; two adjacent carbon atoms are possibly hydrogenated; the nitrogenated base possibly forms part of a polymeric matrix; and X- represents an anion derivative of an acid selected from the group formed by the sulphonic acids of the formula R?FSO3H, the sulphonimides of the formula (RFSO2) (R'FSO2)NH and the methylures of the formula (RFSO2) (R'FSO2)CH2 or (RFSO2) (R'FSO2) (R'FSO2)CH, wherein RF, R'F or R'F independently represent a radical F(CF2)n-, n being comprised between 0 and 6, and the acid possibly forming part of a polymeric matrix; and (b) a nitrogenated base according to formula (II), wherein Z1, Z2, Z3, and Z4 have the above-mentioned significance, and the nitrogenated base is possibly part of a polymeric matrix. The components (a) and (b) are present in proportions allowing for the formation of a composition with a melting point of less than 25 °C. The proton conductor disclosed in the invention can be used as a liquid, gel, or polymer electrolyte in various electrochemical systems.
摘要:
An ionic conducting material, the preparation thereof and uses of said material are disclosed. The material includes at least one solution of at least one ionic compound in an aprotic solvent, which compound is selected from compounds (1/mM)+[(ZY)2N]-, (1/mM)+[(ZY)3C]-, (1/mM)+[(ZY)2CQ]-, Wherein Y is SO¿2? or POZ; Q is -H, -COZ or Z; each substituent Z is independently a fluorine atom or an optionally perfluorinated organic group optionally having at least one polymerisable function, one of substitutents Z being a fluorine atom; and M is a cation. The material is useful in electrochemical generators, supercapacitors, polymer doping and electrochromic devices.
摘要:
Disclosed is a method for grafting a polymer onto the surface of a carbonate material with carboxyl, amine, and/or hydroxyl functions on its surface. Said material is placed in suspension in a solution including the polymer to be grafted, which has a carboxyl, amine, and/or hydroxyl function, said solution also being comprised of a polymer solvent. A process which stimulates the dehydration into a carboxyl function of an amine and/or hydroxyl function is then performed, and the polymer is grafted onto the carbonate material using ester or amide links. The invention can be used in the cathode or naode of an electrochemical generator, in polymer materials with low polar properties, in ink, and also as a conductive coating on flexible plastic used as an electrical contact, as electromagnetic shielding, or as static protection.
摘要:
The copolymer described is a segmented copolymer consisting essentially of organic segments A which have a number i of reactive ends such that i is from 1 to 6 inclusive, and segments B which have a number j of reactive ends such that j is from 1 to 6 inclusive. The segments B have redox properties and each segment A is connected to at least one segment B by a group Y and vice versa, the group Y being an ether, thioether, secondary amine, tertiary amine, secondary amide, tertiary amide, imide, quaternary ammonium group, or a group having a carbon-carbon bond. The respective weighted molar mean of i and j is 2 or more. Application to electrochemical generators and electrochromic systems.
摘要:
The copolymer described is a segmented copolymer consisting essentially of organic segments A which have a number i of reactive ends such that i is from 1 to 6 inclusive, and segments B which have a number j of reactive ends such that j is from 1 to 6 inclusive. The segments B have redox properties and each segment A is connected to at least one segment B by a group Y and vice versa, the group Y being an ether, thioether, secondary amine, tertiary amine, secondary amide, tertiary amide, imide, quaternary ammonium group, or a group having a carbon-carbon bond. The respective weighted molar mean of i and j is 2 or more. Application to electrochemical generators and electrochromic systems.
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.