Abstract: The invention relates to an anode circuit (8) for a fuel cell (3) having at least one gas jet pump (6) for recirculating anode exhaust gas, which has at least one nozzle (18) through which the fuel gas (H 2) may flow as a fuel gas flow, and which has a fuel gas line (14), a recirculation line (7), and an outflow line (15). The anode circuit according to the invention is characterized in that a plurality of nozzles (18) with different geometries are arranged in a nozzle body (16), which is movable relative to the fuel gas line (14) in such a manner that in each case one of the nozzles (18) is selectively usable.

Abstract: The invention relates to a flow field plate (1) for a fuel cell, consisting of a synthetic resin (A-B) with fillers that comprise at least graphite (C) and/or carbon black. The flow field plate (1) according to the invention is characterized in that a polyurethane resin (PUR) is used as the synthetic resin (A-B).

Abstract: A compressed gas container is disclosed. The compressed gas container has a single one-piece casing surrounding a storage volume and includes a matrix material and reinforcing fibers. The composition of the matrix material between the region of the single one-piece casing facing the storage volume and the region of the single one-piece casing facing the surroundings of the single one-piece casing changes at least once. A method for manufacturing a compressed gas container is also disclosed.

Abstract: The invention concerns a method for dispersing carbon nanotubes in a polymer matrix including a step of preparing carbon nanotubes coated with a polymer coating by a method for polymerizing a monomer using a catalytic system wherein carbon nanotubes are used as catalytic support, the carbon nanotubes comprising in surface the catalytic system for polymerizing the coating polymer, and the coating polymer being non-miscible in the host polymer matrix, followed by a step of hot process mixing of the coated carbon nanotubes with a polymer matrix.