Water electrolysis systems that operate at intermediate temperature (i.e., between about 100? C. and about 300? C.) are described. At least some aspects of the present disclosure relate to proton exchange membrane steam electrolysis (PEMSE) systems including a polymer electrolyte comprising at least one phosphorus atom. In at some examples, the polymer electrolyte my comprise phosphonic acid.

A structured organic film (SOF) is disclosed. The structured organic film includes a plurality of segments, a plurality of linkers, and a plurality of capping segments. The structured organic film also includes a first surface of the SOF. The film also includes a parallel second surface of the SOF connected to the first surface by a thickness of the SOF, where a segment to capping segment ratio is greater at the first surface as compared to the parallel second surface. A membrane including a free-standing film comprised of a structured organic film is also disclosed.

Provided are a solid electrolyte composition containing an inorganic solid electrolyte having a conductivity of an ion of a metal belonging to Group I or II of the periodic table and a binder having a specific hydrocarbon polymer segment and a specific segment, a solid electrolyte-containing sheet in which the same solid electrolyte composition is used and a manufacturing method therefor, an all-solid state secondary battery and a manufacturing method therefor, a polymer having a specific hydrocarbon polymer segment and a specific segment, and a non-aqueous solvent dispersion thereof.

A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

The present specification relates to a compound comprising an aromatic ring, a polyelectrolyte membrane comprising the same, a membrane-electrode assembly comprising the polyelectrolyte membrane, a fuel cell comprising the membrane-electrode assembly, and a redox flow battery comprising the polyelectrolyte membrane.

An anion exchange stationary phase includes a negatively charged substrate particle, a base condensation polymer layer, a crosslinked ethanolamine condensation polymer, and a glycidol condensation layer. The crosslinked ethanolamine condensation polymer layer can be covalently attached to the base condensation polymer layer. The crosslinked ethanolamine condensation polymer layer can be formed by a condensation reaction product of a polyepoxide compound and ethanolamine. The glycidol condensation layer can be formed by the treatment of glycidol. The anion exchange stationary phase are suitable for separating a variety of haloacetic acids and common inorganic anions in a single chromatographic run in less than 20 to 30 minutes.

The present invention relates to a proton conductive nanocomposite membrane and a method for manufacturing same, the proton conductive nanocomposite membrane having polyhedral oligomeric silsesquioxane (POSS) having a proton donor and POSS having a proton acceptor introduced into an aromatic hydrocarbon polymer membrane having a sulfonyl group. The nano-composite membrane of the present invention has both the POSS having a proton donor and the POSS having a proton acceptor added thereto, and thus protons (cations) that are generated are easily hopped in an ion channel by means of hydrogen bonding, and thus ionic conductivity is increased. In addition, the POSS used in the present invention has a very small size, and thus hardly obstructs proton migration in the ion channel in the polymer membrane, and thus excellent proton conductivity may be enabled. In addition, the proton conductive nanocomposite membrane by the present invention exhibits excellent mechanical strength even though the degree of sulfonation of the polymer membrane is increased.

The present invention provides compounds, especially polymeric compounds, a process for preparation thereof and for the use of these compounds. Intended use is in the field of electro-chemistry. Anion-conducting properties of disclosed compounds making this material suitable for the preparation of anion-conducting membranes. The object of the present invention is therefore to provide material having an ionic conductivity that is stable over long period of time. This object is solved by compounds containing at least one unit of the formula (I) wherein X being a ketone or sulfone group, wherein Z being a structure element comprising at least one tertiary carbon atom and at least one aromatic 6-ring directly bonded to one of the oxygen atoms, and wherein Y being a structure element comprising at least one nitrogen atom with a positive charge and Y being bonded to said tertiary carbon atom of Z.

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The present invention aims to provide a polymer having excellent alkali resistance and anion conductivity, a method of producing the polymer, an electrolyte material containing the polymer, and an anion exchange membrane containing the polymer. The present invention relates to a phosphazene bond-containing polymer containing a phosphorus atom constituting a phosphazene bond, the phosphorus atom including a phosphorus atom to which a nitrogen-containing group is bonded, and a nitrogen atom constituting the phosphazene bond, the nitrogen atom including a nitrogen atom to which a hydrocarbon group is bonded.

The present invention relates to anionic exchange polymers including a poly(phenylene) structure. The structure can include any useful cationic moiety. Methods and uses of such structures and polymers are also described herein. In one instance, such polymers are employed to form a solid membrane.