The invention provides a permeable metal substrate and its manufacturing method. The permeable metal substrate includes a substrate body and a permeable powder layer. The permeable powder layer is located on the top of the substrate body. The substrate body can be a thick substrate or formed of a thick substrate and a thin substrate that are welded together. Both the thick and thin substrates have a plurality of permeable straight gas channels. In addition, a metal-supported solid oxide fuel cell and its manufacturing method are also provided.

A fuel cell electrode layer may include a catalyst, an electronic conductor, and an ionic conductor. Within the electrode layer are a plurality of electronic conductor rich networks and a plurality of ionic conductor rich networks that are interspersed with the electronic conductor rich networks. A volume ratio of the ionic conductor to the electronic conductor is greater in the ionic conductor rich networks than in the electronic conductor rich networks. During operation of a fuel cell that includes the electrode layer, conduction of electrons occurs predominantly within the electronic conductor rich networks and conduction of ions occurs predominantly within the ionic conductor rich networks.

Disclosed is a process for the manufacture of a catalyst-coated membrane-seal assembly, including: (i) providing a carrier material; (ii-i) forming a first layer, the first layer being formed by: (a) depositing a first catalyst component onto the carrier material such that the first catalyst component is deposited in discrete regions; (b) drying the first layer; (ii-ii) forming a second layer, the second layer being formed by: (a) depositing a first seal component, such that the first seal component provides a picture frame pattern having a continuous region and void regions, the continuous region including second seal component and the void regions being free from second seal component; (b) depositing a first ionomer component onto the first layer, such that the first ionomer component is deposited in discrete regions; and (c) drying the second layer.

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

A cathode unit for a ceramic fuel cell includes a silver (Ag) support and an ion conductive solid membrane. The silver (Ag) support is formed on a pellet. The ion conductive solid membrane is formed to partially cover a surface of the silver support and includes ion conductive particles electrically connected to each other and having ion conductivity.

Disclosed is a nanotubular intermetallic compound catalyst for a positive electrode of a lithium air battery and a method of preparing the same. In particular, a porous nanotubular intermetallic compound is simply prepared using electrospinning in which a dual nozzle is used, and, by using the same as a catalyst, a lithium air battery having enhanced discharge capacity, charge/discharge efficiency and lifespan is provided.

A fuel cell electrode layer may include a catalyst, an electronic conductor, and an ionic conductor. Within the electrode layer are a plurality of electronic conductor rich networks and a plurality of ionic conductor rich networks that are interspersed with the electronic conductor rich networks. A volume ratio of the ionic conductor to the electronic conductor is greater in the ionic conductor rich networks than in the electronic conductor rich networks. During operation of a fuel cell that includes the electrode layer, conduction of electrons occurs predominantly within the electronic conductor rich networks and conduction of ions occurs predominantly within the ionic conductor rich networks.

A counter-rotating roller system for coating electrode materials includes a roll-to-roll apparatus including a dispensing roller that selectively dispenses a conductive substrate from a substrate roll along a first direction towards a receiving roller. A counter-rotating roller module including a counter-rotating roller is stationarily positioned at a predetermined height over the conductive substrate. The direction of the tangential velocity of the counter-rotating roller at an interface between the counter-rotating roller and the conductive substrate is 180 degrees opposite the first direction of travel of the conductive substrate. The system further includes a continuous powder application module positioned on a feed side of the counter-rotating roller to continuously deposit a volume of a dry powder mixture on the conductive substrate prior to contact with the counter-rotating roller. A contact roller scraper contacting the counter-rotating roller removes powder particles from an outer surface of the counter-rotating roller.

A method for producing a catalyst-coated membrane includes: producing and/or providing at least one first ink with a first ink composition, comprising supported catalyst particles, a proton-conductive ionomer, and a dispersing agent, the content of the supported catalyst particles in the composition remaining below the content of the proton-conductive ionomer; unwinding a web-shaped proton-conductive membrane material which is provided on a roll; applying at least one layer of the first ink onto at least one section of the membrane material using a first application tool; and sputtering a catalyst powder consisting of or comprising catalyst particles onto a surface of the outermost ink layer facing away from the membrane material using a sputtering device.

The present invention provides an oxygen evolution reaction catalyst, wherein the oxygen evolution reaction catalyst is an oxide material comprising iridium, tantalum and ruthenium: wherein the oxygen evolution catalyst comprises a crystalline oxide phase having the rutile crystal structure; wherein the crystalline oxide phase has a lattice parameter a of greater than 4.510 .