A polymer and a method for preparing the same are provided. The polymer includes a first repeat unit and a second repeat unit. In particular, the first repeat unit is ##STR00001##
and, the second repeat unit is ##STR00002##
wherein R.sup.+ is ##STR00003##
A.sup.? is F.sup.?, Cl.sup.?, Br.sup.?, I.sup.?, OH.sup.?, HCO.sub.3.sup.?, HSO.sub.4.sup.?, SbF.sub.6.sup.?, BF.sub.4.sup.?, H.sub.2PO.sub.4.sup.?, H.sub.2PO.sub.3.sup.?, or H.sub.2PO.sub.2.sup.?; X is ##STR00004##
i and j are independently 0, or an integer from 1 to 4; Y is O, S, CH.sub.2, or NH; R.sup.1 is independently C.sub.1-8 alkyl group; and, R.sup.2 and R.sup.3 are hydrogen, or independently C.sub.1-8 alkyl group.

The invention relates to novel polymers containing grafted sodium or lithium bis(sulfonyl)imides, to the methods for the production thereof, and to the uses of same as electrolytes in batteries.

An electrochemical cell having an anode, a solid electrolyte, and a cathode. The solid electrolyte includes a polymer gel formed from an ethylene oxide polymer combined with a liquid precursor. The liquid precursor contains at least 15 molar percent of a lithium salt in a solvent.

The invention relates to novel polymers containing grafted sodium or lithium sulphonamides, production methods thereof and uses of same as electrolytes in batteries.

The present invention relates to an ion conductor, a method for producing the same, and an ion exchange membrane, a polymer electrolyte membrane and a fuel cell including the same. The ion conductor includes a repeat unit represented by the following Formula 1, and a repeat unit represented by the following Formula 2 or a repeat unit represented by the following Formula 5. Formulae 1, 2 and 3 are described as in the Detailed Description of the Invention.

The ion conductor contains a hydrocarbon-based block copolymer which has an easily changeable structure because it includes a hydrophilic region and a hydrophobic region, wherein characteristics of the block copolymer and the ion conductor can be easily regulated through control over the structure of the hydrophilic region and the hydrophobic region, and ion conductivity and durability of the ion conductor are improved within the whole humidity range through micro-phase separation between the hydrophilic region and the hydrophobic region which are structurally controlled.

The invention relates to an anion-exchange membrane (AEM) having a multiblock copolymer including a hydrophilic norbornene-based monomer and a hydrophobic alkene-based or norbornene-based monomer. The hydrophilic norbornene-based monomers include one or more cationic head groups such as a quaternary ammonium ion, which can optionally be crosslinked with a crosslinking agent to increase the structural stability of the polymer. These AEMs can be employed in electrochemical devices such as fuel cells.

The present disclosure relates to a technology of synthesizing an aromatic polyfluorene-based copolymer which has a cross-linked structure, does not have an aryl ether bond in a polymer backbone and has a piperidinium group introduced in a repeating unit, and applying an anion exchange membrane prepared therefrom to an alkaline fuel cell, water electrolysis, carbon dioxide reduction, a metal-air battery, etc. According to the present disclosure, an anion exchange membrane having a cross-linked structure has superior thermal and chemical stability and mechanical properties as well as high water-holding capacity, ionic conductivity and durability, and exhibits a superior dispersed phase.

The present invention provides (polymeric) compounds and a process for preparation thereof. Intended use is in field of electrochemistry. Anion-conducting properties of disclosed compounds making this material suitable for preparing anion-conducting membranes. It is object of present invention to provide an easy-to-prepare material with proper anion-conducting properties and controlled swelling. Inexpensive precursors shall be used for synthesis. This problem has been solved by providing compounds characterized by at least one unit of the formula (I) with X being a structure element comprising at least one nitrogen atom with a positive charge bonded to C.sup.1 and C.sup.2 and bonded via two bonds to one or two hydrocarbon radicals) comprising 1 to 12 carbon atoms and Z being a structure element comprising a carbon atom being bonded to C.sup.3 and C.sup.4 and at least one aromatic 6-ring directly bonded to one of the oxygen atoms, wherein said aromatic 6-ring is substituted in position 3 and 5 with the same or different alkyl group having from 1 to 4 carbon atoms.

Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

The invention relates to:anion exchange blend membranes consisting the following blend components:a halomethylated polymer (a polymer with (CH2)xCH2Hal groups, Hal=F, Cl, Br, I; x=0-12), which is quaternised with a tertiary or a n-alkylated/n-arylated imidazole, an N-alkylated/N-arylated benzimidazole or an N-alkylated/N-arylated pyrazol to form an anion exchanger polymer. - an inert matrix polymer in which the anion exchange polymer is embedded and which is optionally covalently crosslinked with the halomethylated precursor of the anion exchanger polymer,a polyethyleneglycol with epoxide or halomethyl terminal groups which are anchored by reacting with NH-groups of the base matrix polymer using convalent cross-linkingoptionally an acidic polymer which forms with the anion-exchanger polymer an ionic cross-linking (negative bound ions of the acidic polymer forming ionic cross-linking positions relative to the positive cations of the anion-exchanger polymer)optionally a sulphonated polymer (polymer with sulphate groups SO2Me, Me=any cation), which forms with the halomethyl groups of the halomethylated polymer convalent crosslinking bridges with sulfinate S-alkylation. The invention also relates to a method for producing said membranes, to the use of said membranes in electrochemical energy conversion processes (e.g. Redox-flow batteries and other flow batteries, PEM-electrolyses, membrane fuel cells), and in other membrane methods (e.g. electrodialysis, diffusion dialysis).