Abstract: Deposition of material is performed on a substrate by causing short-distance reciprocating motions of the substrate that improve uniformity of material on the substrate. A series of reactors for injecting material onto the substrate is arranged along the length of the substrate in a repeating manner. During each reciprocating motion, the susceptor moves a distance shorter than an entire length of the substrate. Portions of the substrate are injected with materials by a subset of reactors. Since the movement of the substrate is smaller, a linear deposition device including the susceptor may be made smaller.

Abstract: Embodiments relate to performing deposition of material on a substrate by causing short-distance reciprocating motions of the substrate. A series of reactors for injecting material onto the substrate is arranged along the length of the substrate in a repeating manner. During each reciprocating motion, the susceptor moves a distance shorter than an entire length of the substrate. Portions of the substrate are injected with materials by a subset of reactors. Since the movement of the substrate is smaller, a linear deposition device including the susceptor may be made smaller.

Abstract: A composite gasket to provide sealing and to control a swelling of at least a plurality of gas diffusion layers in a fuel cell includes a first incompressible layer provided near an anode flow field, a second incompressible layer provided near a cathode flow field. Further, the composite gasket includes a first elastomeric layer provided in between the first incompressible layer and the anode flow field and a second elastomeric layer provided between the second incompressible layer and the cathode flow field.

Abstract: A fuel cell includes an anode flow field plate having a flow field including a plurality of first lands and a plurality of first channels. Further, the fuel cell includes a cathode flow field plate having a flow field including a plurality of second lands and a plurality of second channels. A membrane electrode assembly is provided between the anode flow field plate and the cathode flow field plate. A width of each of the first channels is greater than a width of each of the second channels.

Abstract: A concentration sensor assembly for measuring a concentration of a aqueous hydrocarbon fuel to be supplied to a fuel cell stack, the assembly including a membrane electrode assembly having an anode, a cathode and an electrolyte membrane located between the anode and the cathode; a first monopolar flow field plate provided near the anode; a second monopolar flow field plate provided near the cathode; and a liquid gas separator.

Abstract: A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.

Abstract: A method of preparing catalyst agglomerates for electrochemical devices is provided. The method comprises dispersing particles of a catalyst in a non-aqueous solvent to form a dispersion of the catalyst, adding an ion conducting polymer in a dilute solution to the dispersion of the catalyst under agitation to form catalyst agglomerates, and stirring the dispersion of the catalyst and the catalyst agglomerates to control the growth of the agglomerates. A directly applicable catalyst composition is also provided. The catalyst composition comprises the catalyst agglomerates prepared according to the present invention, a solvent to plasticize surfaces of the catalyst agglomerates and the membrane, and a non-aqueous carrier solvent.