An electrode can include a functional layer having an Ln.sub.2MO.sub.4 phase, where Ln is at least one lanthanide optionally doped with a metal and M is at least one 3d transition metal, and a heavily-doped ceria phase. An electrochemical device or a sensor device can include the electrode.

In accordance with the present disclosure, a method for fabricating a symmetrical solid oxide fuel cell is described. The method includes synthesizing a composition comprising perovskite and applying the composition on an electrolyte support to form both an anode and a cathode.

Modular pressurized hotbox for use and substitution in a variety of pressurized electrochemical applications to include reversible solid oxide electrolyzer and fuel cells, energy storage systems, renewable fuel production, solid-state hydrogen pumping and liquefaction, and oxygen transport membranes. This is enabled by mixed electronic and ionic conducting compositions of vanadia-yttria and vanadia-calcia stabilized zirconia and a dry powder method of manufacture for ceramic core stacks.

A battery performance of a metal-air battery is improved while still maintaining a low environmental burden. A metal-air battery includes an air electrode formed from a co-continuous substance having a three-dimensional network structure in which a plurality of nanostructures are integrated by noncovalent bonds; an anode; and an electrolyte disposed between the air electrode and the anode, in which the electrolyte is a gel electrolyte obtained by gelling an aqueous solution containing an ion conductor with a gelling agent, and the gelling agent is constituted of at least one of a plant-derived polysaccharide, a seaweed-derived polysaccharide, a microbial polysaccharide, an animal-derived polysaccharide, and a group of acetic acid bacteria that produce the polysaccharides.

A system for a solid oxide fuel cell stack disposed between and in contact with a fixed top compression plate and a movable compression plate. At least one tension rod can be inserted through an opening on a movable locking plate, wherein the top end of the tension rod is connected to the bottom of the movable compression plate and the bottom end of the tension rod is connected to a fixed bottom compression plate. At least one nut can be used in conjunction each tension rod and disposed below the movable locking plate to secure the movable locking plate in position. Additionally, at least one spring can be disposed around the at least one tension rod and connected to the bottom of the movable compression plate and the top of the fixed bottom compression plate. Finally, at least one pneumatic cylinder can be in contact with the bottom of the movable locking plate and the fixed bottom compression plate.

The present invention relates to a catalyst and a manufacturing method thereof, the catalyst is characterized that a distance between a transition metal of a transition metal oxide nanoparticle and oxygen is controlled by substituting at least a part of surface of the transition metal oxide nanoparticle with an inclusion.

The electrochemical cell according to the present invention has an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The cathode contains a main phase and a second phase. The main phase is configured with a perovskite oxide which is expressed by the general formula ABO.sub.3 and includes at least one of Sr and La at the A site. The second phase is configured with SrSO.sub.4 and (Co, Fe).sub.3O.sub.4. An occupied surface area ratio of the second phase in a cross section of the cathode is less than or equal to 10.5%.

The present specification relates to a sheet laminate for a solid oxide fuel cell, a precursor for a solid oxide fuel cell including the same, an apparatus for manufacturing a sheet laminate for a solid oxide fuel cell, and a method for manufacturing a sheet laminate for a solid oxide fuel cell.

Disclosed are a catalyst complex which may suppress cell voltage reversal in a fuel cell and a method for manufacturing the same. The catalyst complex includes a support, a first catalytic active material supported on the support and comprising a platinum component including one or more selected from the group consisting of platinum and a platinum alloy, and a second catalytic active material supported on the support and comprising one or more selected from a noble metal other than platinum and an oxide thereof, and the support includes functional groups including oxygen.

A method of fabricating a three-dimensional (3D) architectured anode. The method comprises immersing a fabric textile in a precursor solution, the precursor solution comprising a nickel salt and gadolinium doped ceria (GDC). The nickel salt and GDC are absorbed to the fabric textile. The fabric textile comprising the absorbed nickel salt and GDC is removed from the precursor solution and calcined to form a 3D architectured anode comprising nickel oxide and GDC. Additional methods and a direct carbon fuel cell including the 3D architectured anode are also disclosed.