摘要:
This invention has as its subject a basic organo-mineral proton conducting polymer, produced by copolymerization of three precursors:a precursor based upon a trialkoxysilane, onto which a methane sulphonamide group is grafted by means of an alkyl or aryl link,a "deprotonizing" precursor based upon a trialkoxysilane, onto which is grafted a group derived from a nitrogenous base, preferably an imidazoline group, by means of an alkyl or aryl link,a "plasticizing" and solvating precursor, having at least one urea group which is the product of a reaction between a primary mono-, di- or triamine D and a trialkoxysilane E onto which an isocyanate group has been grafted by means of an alkyl link.
摘要:
A rechargeable metal ion cell comprising: an anode comprising at least one metal; a charge-carrying electrolyte comprising a charge carrying medium and at least one metal salt; and an organic polymer cathode, wherein such cathode comprises at least one N-substituted polyphenothiazine polymer [polymer (P)], such polymer (P) comprising at least one N-substituted phenothiazine recurring unit of formula: wherein R′ is an electron-withdrawing group comprising at least one heteroatom selected from the group consisting of O, S, P, and N.
摘要:
The field of the present invention relates to the field of batteries and of polymer electrolytes for batteries and more particularly to the field of lithium batteries.The invention relates to a composition which can be polymerized and/or crosslinked photochemically or under an electron beam for a battery electrolyte comprising: (a) at least one polyorganosiloxane (POS) (A) comprising, per molecule at least 2 siloxyl units carrying radicals comprising an epoxy (Epx) functional group with optionally an ether (Eth) functional group, and at least one of the siloxyl units carries a polyoxyalkylene (Poa) ether radical; (b) at least one electrolyte salt ; and (c) an effective amount of at least one cationic photoinitiator.
摘要:
A separator for a battery in lithium. The separator is a thick membrane, of around 60 to 120 μm in polyvinylidene fluoride copolymer, which has considerable porosity, of around 50 to 90%, with pores of size between 1 and 10 μm. With these characteristics, it is possible to optimize the operation of a battery with an electrode in, e.g., Li4Ti5O12, in particular for rapid charges and discharges, in other words in power applications.
摘要翻译:用于锂电池的分离器。 分离器是聚偏二氟乙烯共聚物中约60至120μm的厚膜,其具有大约50至90%的相当大的孔隙率,孔尺寸在1和10μm之间。 利用这些特性,可以优化例如Li 4 Ti 5 O 12 12中的电极的电池的操作, 特别是用于快速充电和放电,换句话说在电力应用中。
摘要:
The invention relates to an ionically conductive material, to its preparation and to its uses. The material includes at least one ionic compound in solution in an aprotic solvent, chosen from the compounds (1/mM)+[(ZY)2N]−, (1/mM)+[(ZY)3C]− and (1/mM)+[(ZY)2CQ]−, in which Y denotes SO2 or POZ, Q denotes —H, —COZ or Z, each substituent Z independently denotes a fluorine atom or an optionally perfluorinated organic group which optionally contains at least one polymerizable functional group, at least one of the substituents Z denoting a fluorine atom, and M denotes a cation. Application to electrochemical generators, supercapacities, to the doping of polymers and to electrochromic devices.
摘要:
The invention relates to monomers derived from perhalogenated sultones, to a process for their preparation, to the polymers obtained from the said monomers and to their use for the production of ion-conductive materials.The monomers are compounds corresponding to the formula A--CFX--SO.sub.2 Z in which A denotes one groups R.sup.3 O--CF.sub.2 -- or R.sup.3 -- R.sup.1 R.sup.2 N--CO--; Z denotes F, Cl, --OSi(CH.sub.3).sub.3 or an ionic group, Z being other than F when A denotes R.sup.3 O--CF.sub.2 -- or R.sup.3 --; X denotes F, Cl, H or R.sub.F, X being R.sub.F when A denotes R.sup.3 --; the radicals R.sup.1, R.sup.2 and R.sup.3 are chosen from polymerizable nonperfluorinated organic radicals; R.sub.F is chosen from perfluoroalkyl radicals and perfluoroaryl radicals.The polymers obtained from these monomers can be employed for the production of ion-conductive materials.
摘要:
Bis(perfluorosulphonyl)methanes, process for preparing same and uses thereof. The compounds of the invention are based on the formula (1/nM)+[(R.sub.F SO.sub.2).sub.2 CY].sup.- in which Y denotes an electron-attracting group chosen from --C.dbd.N and RZ groupings in which Z denotes a carbonyl grouping, sulphonyl grouping or a phosphonyl grouping and R denotes an organic monovalent grouping, M denotes a metal having valency n or an organic group capable of existing in the cationic form, R.sub.F denotes a perfluoroalkyl or perfluoroaryl grouping. Said compounds are especially useful in the production of electrochemical devices.
摘要:
The invention relates to a solid ionic conducting material which can be used as an electrolyte or as a component of a composite electrode. The material comprises a polymer matrix, at least one ionic species and at least one reinforcing agent. The polymer matrix is a solvating polymer optionally having a polar character, a non-solvating polymer carrying acidic ionic groups, or a mixture of a solvating or non-solvating polymer and an aprotic polar liquid. The ionic species is an ionic compound selected from salts and acids, said compound being in solution in the polymer matrix, or an anionic or cationic ionic group fixed by covalent bonding on the polymer, or a combination of the two. The reinforcing agent is a cellulosic material or a chitin.
摘要:
The invention concerns a copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function. The copolymer comprises ethylene oxide, —O—CH2—CHR— units in which R is a substituent containing a reactive function which is cross-linkable by free radical process, R may be different from one unit to the other, and possibly —O—CH2—CHR′— units in which R′ is a substituent containing no reactive function which is cross-linkable by means of a free radical process, R′ may be different from one unit to the other. It is characterized by an excellent polymolecularity index I=Mw/Mn and a statistical distribution of the different monomer units. The copolymer is prepared by an anionic copolymerization process. The copolymer is useful for preparing a solid electrolyte having good mechanical properties, a good cationic conductivity and a good chemical compatibility with the electrodes of a generator operating with alkali metals such as lithium and sodium.
摘要:
The invention concerns a copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function. The copolymer comprises ethylene oxide, —O—CH2—CHR— units in which R is a substituent containing a reactive function which is cross-linkable by free radical process, and possibly —O—CH2—CHR′— units in which R′ is a substituent containing no reactive function which is cross-linkable by means of a free radical process, It is characterized by an excellent polydispersity index I=Mw/Mn and a random distribution of the different monomer units. The copolymer is prepared by an anionic copolymerization process. The copolymer is useful for preparing a solid electrolyte having good mechanical properties, a good cationic conductivity and a good chemical compatibility with the electrodes of a generator operating with alkali metals such as lithium and sodium.