This invention provides a composite material for bipolar plates for fuel cells including cemented by a MPC binder and electrically conductive fillers, and a method of manufacturing the same. The resulting bipolar plate achieves low gas permeability, high electrical conductivity, high flexural strength and good corrosion resistance. The flexural strength and corrosion resistance can further be enhanced by the incorporation of macro-reinforcement and a polymer based surface treatment, respectively.

A recombinator for the catalytic recombination of hydrogen and oxygen generated in energy converters, in particular accumulators, to form water, comprising a housing in which a volume space is formed, into which the gases can flow via an opening and in which a recombination device is arranged that comprises a portion for a catalyst material and a portion for an absorption material, wherein the flow path of the gases to be recombined extends through the portion comprising the absorption material into the portion comprising the catalyst material, wherein a distance space is formed between the portion comprising the absorption material and the portion comprising the catalyst material, wherein the catalyst material is configured as a catalyst bar, the catalyst bar is arranged in a first gas-permeable tube and the distance space is formed in a gap space between the inner walling of the first gas-permeable tube and the outer wall of the catalyst bar.

The invention relates to an electricity generating electrochemical device of the solid-oxide fuel-cell stack type. The device includes a planar assembly having at least one electrochemical cell comprised between first and second gas diffusing plates made of ceramic of expansion coefficient between 810.sup.6 K.sup.1 and 1010.sup.6 K.sup.1 and drilled with equidistant holes. First and second current conductive metal grids each are connected to a conductive wire allowing current to flow out of the device. The grilles are placed on either side of the at least one electrochemical cell between this cell and each of the first and second gas diffusing plates. A clamping device mechanically holds the planar assembly together.

The invention relates to an electricity generating electrochemical device of the solid-oxide fuel-cell stack type. The device includes a planar assembly having at least one electrochemical cell comprised between first and second gas diffusing plates made of ceramic of expansion coefficient between 810.sup.6 K.sup.1 and 1010.sup.6 K.sup.1 and drilled with equidistant holes. First and second current conductive metal grids each are connected to a conductive wire allowing current to flow out of the device. The grilles are placed on either side of the at least one electrochemical cell between this cell and each of the first and second gas diffusing plates. A clamping device mechanically holds the planar assembly together.

The present invention relates to hybrid gas diffusion layers for electrochemical cells, in particular for membrane electrode units in polymer electrolyte membrane (PEM) fuel cells and a method for manufacturing them.

The present invention relates to hybrid gas diffusion layers for electrochemical cells, in particular for membrane electrode units in polymer electrolyte membrane (PEM) fuel cells and a method for manufacturing them.

A bipolar plate for a fuel cell comprises a fiber reinforcement structure containing thermoplastically bonded carbon fibers, the fiber reinforcement structure being multilayered and comprising a plurality of fiber reinforcement structure layers, at least two of which contain thermoplastically bonded carbon fibers.

A bipolar plate for a fuel cell comprises a fiber reinforcement structure containing thermoplastically bonded carbon fibers, the fiber reinforcement structure being multilayered and comprising a plurality of fiber reinforcement structure layers, at least two of which contain thermoplastically bonded carbon fibers.

A solid oxide fuel cell is provided that includes an an anode, a cathode, and an electrolyte provided between the anode and the cathode.

The present invention includes a fuel cell system having a plurality of adjacent electrochemical cells formed of an anode layer, a cathode layer spaced apart from the anode layer, and an electrolyte layer disposed between the anode layer and the cathode layer. The fuel cell system also includes at least one interconnect, the interconnect being structured to conduct free electrons between adjacent electrochemical cells. Each interconnect includes a primary conductor embedded within the electrolyte layer and structured to conduct the free electrons.