Robert Boschgmbh

Ulrich Berner

Stefan Schoenbauer

Jan Hendrik Ohs

Jonathan Mailoa

Soo Kim

Nathan P Craig

Charles D Tuffile

Udo Riegler

Helerson Kemmer

Christina Johnston

Karim Gadelrab

Jochen Wessner

Kai Weeber

Arnold Gente

Ulrich Sauter

Harald Schmeisser

Matthias Martin Hanauer

Florian Alexander Knorr

A computational method for determining a location and an amount of a transition metal M in surface facets of a Pt—M alloy using a density functional theory includes receiving a particle size and a surface facet distribution of the Pt—M alloy and a total concentration of M in the Pt—M alloy; calculating a total number of M atoms in the Pt—M alloy based on the particle size and the surface facet distribution of the Pt—M alloy and the total concentration of M in the Pt—M alloy; and predicting a mixing energy between Pt and at least one of the total number of M atoms in a subsurface layer of each of the surface facets of the Pt—M alloy when Pt is mixed with the at least one of the total number of M atoms.

Platinum-based alloy catalyst materials and computational methods relating thereto

A fuel cell stack includes a first end region, a second end region, and a middle region. At least one of a first number of fuel cell units in the first end region is a first fuel cell unit including a membrane electrode assembly (MEA) with a first catalyst material on either or both an anode and a cathode of the first fuel cell unit. At least one of a second number of fuel cell units in the second end region is a second fuel cell unit including an MEA with a second catalyst material on either or both an anode and a cathode of the first fuel cell unit. The middle region is situated between the first and the second end region. At least one of a third number of fuel cell units in the middle region is a third fuel cell unit including an MEA with a third catalyst material on either or both an anode and a cathode of the first fuel cell unit. At least one of the first, the second, and the third catalyst material are different.

Catalyst materials for a fuel cell stack

A fuel cell system (), wherein the fuel cell system () has: a) a fuel cell stack (), b) an anode gas path () which fluidically communicates with the fuel cell stack () and which serves for supplying anode gas from an anode gas store () to the fuel cell stack (), c) a cathode gas path () which fluidically communicates with the fuel cell stack () and which serves for supplying cathode gas from a cathode gas store () to the fuel cell stack (), d) a cooling fluid path () which fluidically communicates with the fuel cell stack () and which serves for supplying cooling fluid from a cooling fluid store () to the fuel cell stack (), e) a vibration generator () which is in data-transmitting communication with a control unit () and which serves for setting the fuel cell stack () into a vibrating state, and f) the control unit () for actuating the vibration generator () in order to set the fuel cell stack () into the vibrating state by means of the vibration generator ().

Fuel cell system with a vibration generator, and method for operating a fuel cell system with a vibration generator

The present invention relates to a fuel cell stack () and to a method for producing such a fuel cell stack (). The fuel cell stack () comprises at least two fuel cell modules () with in each case at least two individual cells (), each fuel cell module () having module end plates () on both cell stack outer sides (), and fuel cell stack compression means (), via which the fuel cell modules () stacked one on top of the other are braced to form a fuel cell stack ().

Fuel cell stack, method for producing a fuel cell stack and method for operating a fuel cell stack

The invention relates to a fuel cell () comprising at least one membrane/electrode unit () comprising a first electrode () and a second electrode (), which electrodes are separated from one another by a membrane (), and comprising at least one bipolar plate () which comprises a first distribution region () for distributing a fuel to the first electrode () and a second distribution region () for distributing an oxidation agent to the second electrode (). A distribution unit () is provided in at least one of the distribution regions () and has at least one flat woven fabric (), wherein the flat woven fabric () is deformed in such a way that raised portions () of the woven fabric () touch one of the electrodes ().

Fuel cell

The invention relates to a gas distributor plate () for gas distribution and flow guidance at least in electrolysers or fuel cells, comprising a structure arranged on a contact surface of the gas distributor plate (), for gas distribution and flow guidance, the structure for gas distribution and flow guidance being formed as a deformable structure ().

Gas distributor plate for gas distribution and flow guidance in electrolysers and fuel cells

The invention relates to a bipolar plate () for a fuel cell, comprising a first distributing region () for distributing a fuel to a first electrode () and a second distributing region () for distributing an oxidant to a second electrode (). At least one woven fabric () is provided in at least one of the distributing regions (). The invention further relates to a fuel cell, comprising at least one membrane electrode assembly () having a first electrode () and a second electrode (), which are separated from each other by a membrane (), and comprising at least one bipolar plate () according to the invention.

Bipolar plate for a fuel cell and fuel cell

The invention relates to a distribution structure () for providing at least one reaction gas, in particular a gas mixture containing oxygen (O2), for a fuel cell () or an electrolyser, having a first structure element () and a second structure element (), wherein the first structure element () and the second structure element () are designed and arranged with respect to one another such that: a distribution area () for the reaction gas is formed between the first structure element () and the second structure element (); a plurality of feed channels () branch off from the distribution area () and are orientated substantially perpendicular to the distribution area (); and a plurality of discharge channels () are formed below the second structure element () and are orientated parallel to the distribution area ().

Distribution structure for providing at least one reaction gas

The invention relates to a fuel cell () comprising at least one membrane electrode assembly () and at least one flow field plate () comprising a separator plate (). The flow field plate () has at least one structural part () which comprises a base body () in which recesses () are introduced, and vanes () which extend from sides () of the recesses () and extend to the at the least one membrane electrode assembly ().

Growing community of inventors

Stuttgart, Germany

Ulrich Berner