Fuel cell for generation of electrical power running directly on paraformaldehyde uses separate depolymerization stage to make reactive formaldehyde
DE102004044490A1
Quality checking electrode layers during the continuous manufacture of membrane electrode units for fuel cells comprises using the homogeneity of fluorescing layers as a measure for the homogeneity and quality of the layers
DE102004039113A1
Quality control method for electrode layers of membrane-electrode units comprises measuring the distribution and intensity of fluorescing regions produced in electrolytic solutions with electrochemical oxidizable additives and indicators
DE102004039116A1
Proton exchange membrane electrolyzer for electrolyzing hydrogen comprises anode, cathode, polymer membrane, gas diffusion medium and bipolar plate having cone shape
DE102004039115A1
Bipolar plate for proton electrolyte membrane fuel cells and electrolyzers is cone shaped with base surfaces made from symmetrical random corners
DE102004039117A1
Polymer electrolyte membrane fuel cell for recovering electrical energy from liquid fuels comprises an anode, a cathode, a polymer membrane, a gas diffusion medium and a bipolar plate formed as conical structures
DE10033253A1
Storage heater, preferably with collapsible construction, has combustion region and hot gas flue embedded in heat storage medium
CH694471A5
Heat storage solid fuel stove has heat storage medium that is a mixture of dry mineral and metal grains
DE19859353A1
storage heater
CA1050223A
Method of manufacturing composite bodies
ES303310A1
Plumbing fixture and method of manufacturing the same
