Disclosed are a method of manufacturing a membrane electrode assembly for a fuel cell and a membrane electrode assembly for a fuel cell manufactured using the same. The planar membrane electrode assembly for a fuel cell may include an ionomer membrane formed on both side surfaces of an electrode and between the electrode and an electrolyte membrane, thereby increasing interfacial bonding force between the electrode and the electrolyte membrane and improving the durability of a cell. In addition, the membrane electrode assembly may include planar or smooth surfaces such that formation of voids or surface steps between the electrode and a sub-gasket may be prevented, thereby improving airtightness and preventing deterioration attributable to concentration of pressure.

An electrode plate processing device is provided. The electrode plate processing device includes: an electrode plate conveying mechanism configured to convey an electrode plate; a cutting mechanism disposed opposite to the electrode plate and configured to cut the electrode plate to form a tab; and a waste adsorption mechanism disposed downstream of the cutting mechanism along a conveying direction of the electrode plate. The waste adsorption mechanism includes an active driving roller, a driven support roller, and a conveyer belt that is coupled to the active driving roller and the driven support roller in a transmission way. The conveyer belt is driven by the active driving roller to rotate and configured to provide an adsorption force to a waste edge produced during the cutting of the electrode plate so as to adsorb the waste edge.

An apparatus of manufacturing an elastomeric cell frame for a fuel cell may include, as the apparatus of manufacturing the elastomeric cell frame including an insert in which a membrane electrode assembly and a gas diffusion layer have been bonded, and a sheet-like elastomeric frame made of a thermoplastic elastomer (TPE) integrated into an external area of the insert to form the unit cell of the fuel cell, a lower jig module accommodated so that the overlapping area, in which the insert and the elastomeric frame overlap at a predetermined area, is accommodated, and an upper jig module mounted above the lower jig module to provide heat and pressure to the overlapping area to thermally bond an interface between the insert and the elastomeric frame in the overlapping area.

Improved catalyst layers for use in fuel cell membrane electrode assemblies, and methods for making such catalyst layers, are provided. Catalyst layers can comprise structured units of catalyst, catalyst support, and ionomer. The structured units can provide for more efficient electrical energy production and/or increased lifespan of fuel cells utilizing such membrane electrode assemblies. Catalyst layers can be directly deposited on exchange membranes, such as proton exchange membranes.

Improved catalyst layers for use in fuel cell membrane electrode assemblies, and methods for making such catalyst layers, are provided. Catalyst layers can comprise structured units of catalyst, catalyst support, and ionomer. The structured units can provide for more efficient electrical energy production and/or increased lifespan of fuel cells utilizing such membrane electrode assemblies. Catalyst layers can be directly deposited on exchange membranes, such as proton exchange membranes.

Systems and methods for a battery electrode having a solvent level to facilitate peeling are disclosed. In examples, a battery may include one or more electrodes and an electrolyte. The electrodes include an electrode slurry layer with a solvent. The electrode slurry is coated on a substrate, where the electrode slurry and substrate produce an active material with a residual amount of solvent in response to a heat-treatment, and where the active material comprises 10% to 25% residual solvent by weight following the heat-treatment. The amount of residual solvent facilitates peeling of the active material from the substrate, which, once pyrolyzed, may be used to create a multi-layer film with the current collector film and the active material.

The present invention relates to a secondary cell in the form of a hybrid system of a zinc-air battery and a silver oxide-zinc battery, comprising an anode, a cathode, and an electrolyte. The anode contains zinc (Zn) and/or zinc oxide (ZnO2), and the cathode is configured as a gas diffusion electrode which contains a mixture of silver (Ag) and/or silver oxide (Ag2O/AgO) with a catalyst for the electrochemical oxygen evolution, wherein the catalyst is selected from cobalt oxide Co3O4), manganese oxide (Mn3O4 or MnO2), cobalt-nickel oxide (CoNiO2), lanthanum-calcium-cobalt oxide (LaxCa1-xCoO3), ruthenium oxide (RuO2), iridium oxide (IrO2), platinum (Pt), palladium (Pd), and mixtures thereof.

The invention further relates to an accumulator which comprises one or a plurality of secondary cells, as well as a method for charging and a method for discharging a secondary cell or an accumulator.

The present invention presents a method for manufacturing a negative electrode of a solid oxide cell in a three-dimensional structure by using a pressurization process. In addition, the present invention proposes a structure in which the entire interface of a solid oxide cell is manufactured on the manufactured three-dimensional negative electrode substrate, through various deposition methods, in a three-dimensional structure so as to maximize a reaction area.

A battery cell providing a non-invasive reference lead includes a cap positioned at a top of the battery cell, where the cap includes an anode section and a cathode section separated by an insulator section. The battery cell also includes a jelly roll comprising an anode lead and a cathode lead extending from a top of the jelly roll. The anode lead of the jelly roll is electrically coupled to the anode section of the cap, and the cathode lead of the jelly roll is electrically coupled to the cathode section of the cap. The battery cell further includes a lithium sleeve providing a reference lead for the battery cell. The lithium sleeve and the cap enclose the jelly roll.

A method of producing electrodes includes selecting a palladium alloy, annealing the palladium alloy at a first temperature above 350 C., cold working the palladium alloy into a desired electrode shape, and annealing the palladium alloy at a second temperatures and for a time sufficient to produce a grain size between about 5 microns and about 100 microns. The method further includes etching the palladium alloy, rinsing the palladium alloy with at least one of water and heavy water, and storing the palladium alloy in an inert environment.