The invention of the current application is directed to a high temperature proton exchange membrane (HTPEM) fuel cell and manufacturing process thereof. The fuel cell includes at least one bipolar plate (BPP) layer, at least one gas diffusion layer (GDL) at least one catalyst layer, and a membrane layer. Additionally, the invention of the current application is directed to a manufacturing process which joins each layer of a (HTPEM) fuel cell in a stacked formation wherein in some embodiments the GDL, catalyst layers, and a membrane layer are pre-casts into a membrane electrode assembly MEA. The resulting (HTPEM) fuel cell has a lower passive area without the need for bulky and heavy gaskets and subgaskets.

A system for manufacturing a shape-changed membrane-electrode assembly includes a first transportation unit configured to transport a first electrode film, a second transportation unit configured to transport a second electrode film, and a third transportation unit configured to transport an electrolyte membrane. Through a roll press, which includes a primary-reaction-section pattern and an auxiliary-reaction-section pattern, transfer pressure, the shape-changed membrane-electrode assembly can be kept uniform during a transfer pressure process, one of processes of manufacturing the membrane-electrode assembly.

Disclosed are a nickel/nickel hydroxide electrode catalyst, a preparation method thereof and an application thereof, the catalyst includes a porous matrix structure and a nanosheet, where the nanosheet is doped in the porous matrix structure, a mass percentage of the porous matrix structure is 95%-99%, a mass percentage of the nanosheet is 1%-5%, and a mass density of the nanosheet is 12-15 mg/cm.sup.2; and the porous matrix structure is nickel, and the nanosheet is nickel hydroxide in configuration. The present disclosure develops an electrode catalyst with higher catalytic efficiency and a simpler preparation method based on the Ni-based catalysts to achieve efficient application of hydrogen energy.

Disclosed is a lithium battery comprising: a cathode; an anode including a passivation film; and an electrolyte interposed between the cathode and the anode, wherein the passivation film includes 0.5 wt % or more and less than 5 wt % of sulfur (S), and the passivation film has a heating value of 50 J/g or less when a nail penetrates the passivation film. The lithium battery has improved penetration characteristics.

The present invention provides a fuel cell electrode, which has increased physical and chemical durability, and a method for manufacturing a membrane-electrode assembly (MEA) using the same. According to the present invention, the fuel cell electrode is manufactured by controlling the amount of platinum supported on a first carbon support used in an anode to be smaller than that used in a cathode to increase the mechanical strength of a catalyst layer and maintain the thickness of the catalyst layer after prolonged operation and by adding carbon nanofibers containing a radical scavenger to a catalyst slurry to decrease deterioration of chemical durability.

Electrodes, separators, half-cells, and full cells of electrical energy storage devices are made with electrospinning and isostatic compression. The electrical energy storage device may include electrochemical double layer capacitors (EDLCs, also known as supercapacitors), hybrid supercapacitors (HSCs), Li-ion capacitors and electrochemical storage devices, Na-ion capacitors and electrochemical storage devices, polymer electrolyte fuel cells, and still other capacitors and electrochemical storage cells.

The invention relates to a cathode for a metal/air battery comprising at least one active layer produced in an active material and having an air side and a metal side, a current collector and a hydrophobic membrane produced in a hydrophobic material and deposited on the air side of the active layer. Said hydrophobic material has a porous structure and has penetrated into the air side of the active layer so as to form, between the hydrophobic membrane and the active layer, an interpenetration zone of hydrophobic material in the active material, in which there is a concentration gradient of hydrophobic material which decreases in the ingoing direction of air into the cathode.

In certain embodiments, an apparatus includes an electrolyte membrane layer (EML), and includes a first electrode catalyst layer (ECL) and a first metallic gas diffusion layer (MGDL) positioned to a first side of the EML such that the first ECL is positioned between the first MGDL and the EML. The first MGDL includes a metal-containing layer and a coating of porous material disposed on a surface of the metal-containing layer of the first MGDL that faces the first ECL. The apparatus further includes a second ECL and a second MGDL positioned to the second side of the EML such that the second ECL is positioned between the second MGDL and the EML. The second MGDL includes a metal-containing layer and a coating of porous material disposed on a surface of the metal-containing layer of the second MGDL that faces the second ECL.

The present invention provides a manufacturing method of a membrane electrode assembly which makes it possible to produce a polymer electrolyte fuel cell at a high level of productivity. According to the present invention, it is possible to make differences in characteristics between a first catalyst electrode 11A and a second catalyst electrode 11B, which are formed on the both surfaces of a polymer electrolyte membrane 3, without changing materials of the first and the second catalyst electrode 11A and 11B. In the present invention, the first and the second catalyst electrode 11A and 11B are adhered to the polymer electrolyte membrane 3 by sticking the first catalyst electrode 11A by a first roll press 7 followed by sticking the second catalyst electrode 11B by a second roll press 8.

Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.