An ion-conducting membrane including a first layer and a second layer, wherein the first layer includes a perfluorosulphonic acid polymer and the second layer includes a sulphonated hydrocarbon polymer, characterised in that the ion-conducting membrane has a total thickness of from 5 m to 50 m and the second layer has a total thickness of 2 m or less is disclosed.

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.

A laminated electrolyte membrane of an embodiment includes: a first electrolyte membrane; a second electrolyte membrane; and a nanosheet laminated catalyst layer provided between the first electrolyte membrane and the second electrolyte membrane and including a laminated structure in which a plurality of nanosheet catalysts is laminated with a gap.

Provided are a reinforced composite membrane and a method of manufacturing the reinforced composite membrane, and more particularly, a reinforced composite membrane including a porous support layer; and an electrolyte membrane layer formed on one surface or each of both surfaces of the porous support layer, at least a portion of the porous support layer being impregnated with an electrolyte, and a method of manufacturing the reinforced composite membrane. The reinforced composite membrane may enhance an interfacial adhesive force between a support and the electrolyte membrane layer, and may be manufactured on a continuous mass production.

Stabilized surfactant-based membranes and methods of manufacture thereof. Membranes comprising a stabilized surfactant mesostructure on a porous support may be used for various separations, including reverse osmosis and forward osmosis. The membranes are stabilized after evaporation of solvents; in some embodiments no removal of the surfactant is required. The surfactant solution may or may not comprise a hydrophilic compound such as an acid or base. The surface of the porous support is preferably modified prior to formation of the stabilized surfactant mesostructure. The membrane is sufficiently stable to be utilized in commercial separations devices such as spiral wound modules. Also a stabilized surfactant mesostructure coating for a porous material and filters made therefrom. The coating can simultaneously improve both the permeability and the filtration characteristics of the porous material.

Systems, methods, and membranes involving ion exchange membranes are disclosed. In an embodiment of the present invention, an ultrathin laminar layer made of inorganic nanosheets may be coated on one side or both sides of a polymeric anion exchange membrane (AEM), forming a composite AEM. Oxidation stability measurements may indicate that composite AEM provide superior oxidation resistance to exemplary polymeric AEMs and to commercial polymeric AEMs.

The present disclosure relates to membrane assemblies, electrode assemblies and membrane-electrode assemblies; and electrochemical cells and liquid flow batteries produced therefrom. The disclosure further provides methods of making the membrane assemblies, electrode assemblies and membrane-electrode assemblies. The membrane assemblies includes an ion permeable membrane and at least one transport protection layer. The electrode assemblies includes a porous electrode and a transport protection layer. The membrane-electrode assembly includes an ion permeable membrane, at least one transport protection layer and at least one porous electrode. The transport protection layer includes at least one of a woven and nonwoven non-conductive substrate comprising fiber and the water permeability @ 5 kPa of the transport protection layer is greater than or equal to about 100 ml/(cm.sup.2 min).

A proton-conductive electrochemical device. The device comprising a positive electrode able to reduce an oxidizing species, a negative electrode able to oxidize a reducing species, and a proton-conductive electrolyte, in contact with the positive electrode and the negative electrode. In addition, the device further comprises a layer able to diffuse protons and electrons, said layer forming a protective barrier against contaminants for the proton-conductive electrolyte. The layer is in contact with the proton-conductive electrolyte on the one hand and the negative electrode on the other hand. A method for manufacturing such device is also provided.

The present specification relates to a core-shell particle, a polymer electrolyte membrane comprising the same, a fuel cell or an electrochemical cell comprising the polymer electrolyte membrane, and a method for preparing a core-shell particle.

A catalyst coated membrane (CCM) for an alkaline exchange membrane fuel cell may include: a membrane including at least one of: a polymer or a copolymer having a first functional chemical group; an anode catalyst layer coated on one side of the membrane including: anode catalyst nano-particles and a polymer or a copolymer having a second functional chemical group; and a cathode catalyst layer coated on a side of the membrane opposite the anode catalyst layer, including: cathode catalyst nano-particles and a polymer or a copolymer having a third functional chemical group, wherein the first functional chemical group, the second functional chemical group and the third functional chemical group are all crosslinked with the same crosslinking chemical group.