The present specification relates to a method for manufacturing a membrane electrode assembly and a laminate. Specifically, the present specification relates to a method for manufacturing a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane provided between the anode and the cathode, and a laminate which is an intermediate laminated during the manufacture of the membrane electrode assembly.

Disclosed are a process for separating an electrode for membrane-electrode assemblies of fuel cells from the decal transfer film and an apparatus for separating the electrode. In particular, during the electrode separating process, only an electrode is separated from the decal transfer film on which the electrode is coated, without any damage, by a freezing method for freezing the specimen on the deionized water surface, and thus, wasting the expensive MEA is prevented. Thus, mechanical properties of the pristine electrode can be rapidly quantified in advance, and therefore, long term durability evaluation period during developing MEA having excellent durability is substantially reduced.

An inorganic structure body has a free-standing structure including a fibrous member and/or a shell. The fibrous member and/or the shell include a metal and/or an inorganic material and have a three-dimensionally continuous configuration. The free-standing structure may have a structure that is based on a nonwoven fabric or a porous membrane used as a substrate.

A membrane electrode assembly is provided that includes a polymer electrolyte membrane and a catalyst layer provided on a surface of the polymer electrolyte membrane. The catalyst layer comprises catalyst particles and an ionomer film surrounding each of the catalyst particles. The ionomer film has an oxygen permeability of approximately 6.010.sup.12 mol/cm/s to 15.010.sup.12 mol/cm/s at 80 C. and a relative humidity of approximately 30% to 100%.

Disclosed are a method of manufacturing a membrane-electrode assembly and a membrane-electrode assembly manufactured using the same. The method includes forming a laminated structure, and treating the laminated structure, for example, by drying and heat treating. The laminated structure includes a release film, an anode layer, a porous support layer, and a cathode layer.

A positive electrode for a lithium-air battery includes a porous film, in which a carbon fiber composite, including an insulation coating layer formed on the outer surface of a tube-type carbon structure, is irregularly arranged. Therefore, it is possible to control the shape and size of a discharge product by inducing generation of the discharge product inside the tube-type carbon structure, thereby reducing overvoltage of a battery and improving the lifespan of the battery.

There is disclosed a method of making an electrode for an electrochemical reactor including the steps of providing a template and depositing electrode material such that the electrode material is in contact with the template. This template is provided in a form that produces channels in the electrode material. There is also disclosed an electrode for an electrochemical reactor which includes electrode material and a template, with the template occupying channels in the electrode material.

The present disclosure relates to a positive electrode for lithium air batteries, a method of manufacturing the positive electrode, and a lithium air battery including the positive electrode, and more particularly to a positive electrode for lithium air batteries, wherein the positive electrode is manufactured through a dry process instead of a conventional wet process and a mixture of a positive electrode active material and a binder is ball-milled under specific conditions, thereby reducing or preventing a swelling phenomenon due to a solvent and increasing the force of coupling between the positive electrode active material and the binder, whereby it is possible to manufacture a high-density electrode and to improve the durability of the electrode, and wherein the lifespan of a lithium air battery is increased when the positive electrode is applied to the battery.

A release layer of a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell comprises a cyclic olefin polymer comprising an olefin unit having a C.sub.3-10alkyl group as a side chain thereof. The release layer may have a glass transition temperature of about 210 to 350 C. The release layer may have a transition point of a dynamic storage modulus E in a range from 50 to 100 C. An ion exchange layer comprising an ion exchange polymer may be laminated on the release layer of the release film by a roll-to-roll processing to produce a laminate. The release film may be separated from the laminate to give the membrane electrode assembly. The release film achieves improved production of a membrane electrode assembly (an electrolyte membrane and/or an electrode membrane) of a polymer electrolyte fuel cell.

An assembly apparatus for a membrane-electrode-gas diffusion layer-assembly for a cell for fuel cell capable of positioning and assembling materials while suppressing failures is provided. An assembly apparatus includes a pair of transfer rollers, a first detection unit, a second detection unit, and a conveyance unit. The conveyance unit includes a pair of first rollers and a pair of second rollers. The pair of first rollers are arranged to be separated in a width direction of a band-shaped sheet intersecting with a conveying direction, and rotate in contact with the preliminary assembly. The pair of second rollers are arranged to be separated in the width direction, and rotate while sandwiching the preliminary assembly with the pair of first rollers. An inclination at least one of the first roller or the second roller varies with respect to the conveying direction together with the preliminary assembly.