Nuvera Fuel Cells Europe Srl

Solvay Specialty Polymers Italy S.p.a.

Greenerity Gmbh

Solvicore Gmbh & Co Kg

Daniele Facchi

Luca Merlo

Antonino Toro

Eduardo Trifoni

Matteo Lenardon

Julio A Abusleme

Gian Piero Fleba

Marcello Liotta

Ruben Ornelas Jacobo

Alessandro Ghielmi

Fabio Traini

Federica Rusconi

Emmanuel Leveque

Marinella Marcucci

Paolo Binelli

Vincenzo Arcella

Toro Antonino

Rubén Ornelas Jacobo

The present invention relates to a process for producing heat-treated vinylidene fluoride polymer particles which exhibit excellent dispersibility and solubility in aprotic polar solvents, improved colour and are less prone to agglomeration and to uses of said vinylidene fluoride polymer particles in electrodes or separators in electrochemical devices and in filtration membranes. The process comprises providing an aqueous dispersion of the VDF-based polymer particles, thermally treating it under stirring and isolating the heat-treated polymer particles.

Process for manufacturing heat treated PVDF

A unit consisting of a fuel cell, provided with a first ion-exchange membrane, and an electrolysis cell, equipped with a second ion-exchange membrane, capable of operating as an electrochemical hydrogen pump in which the electrolysis cell sucks in the discharge gas of the fuel cell anodic compartment which contains hydrogen as the main component, ionizes the hydrogen on a suitable anodic catalyst, sends the so formed protons across the second ion-exchange membrane to a suitable cathodic catalyst where the protons are reconverted to hydrogen which is mixed to the fuel cell hydrogen feed.

Fuel cell with hydrogen internal recirculation

The present invention relates to a membrane electrochemical generator () formed by a multiplicity of reaction cells () mutually connected in electrical series and assembled according to a bipolar configuration. In accordance with the present invention, the thermal management of the membrane electrochemical generator () and the hydration of the membrane () are ensured by the injection of a cooling fluid, preferably liquid water, in the gaseous reactant feed. Such an injection takes place through a multiplicity of calibrated fluid injection holes () obtained in conductive bipolar plates () delimiting the reaction files (). The cooling fluid can be preheated by passing through a collector/distributor structure () located in an additional cell ().

Membrane electrochemical generator

A membrane electrochemical generator comprises a multiplicity of reaction cells () mutually connected in series and assembled according to a filter-press type configuration. Each reaction cell is delimited by a pair of conductive bipolar plates (), which comprises a multiplicity of first calibrated holes () for the passage of the gaseous reactants and a multiplicity of second calibrated holes () for the discharge of the reaction products and of the optional residual reactants. The cooling cells () comprises a rigid peripheral portion (), whereupon a gasket () is laid, defining and sealing on each face of such peripheral portion a zone of collection of the gaseous reactants () and a zone of collection of the reaction products and of the residual reactants (). In a filter-press configuration, these two zones are respectively overlaid to the first calibrated holes to reach the active area of the reaction cells ().

Growing community of inventors

Rovato, Italy

Daniele Facchi