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SIHFC PARTNERS
SIHFC
Pobreška cesta 20
SI-2000 Maribor

T: +386 2 333 13 50
F: +386 2 333 13 51
E: info@sihfc.si
W: www.sihfc.si
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Invitation to new partners

SIHFC is opened for all those who wish to cooperate with it and to share a common vision. We are inviting interested entities to join us. Please, find details in the following information.


European Hydrogen and Fuel Cell Technology Platform
(EU HFP)

SIHFC is an integral part of the European Hydrogen and Fuel Cell Technology Platform (HFP). Please, see more information on hydrogen and fuel cells and details on the planned EU strategy and activities in this field on the EU HFP web pages (http://infotools.hfpeurope.org/).


Fuell cell

Hydrogen fuel cell – principle of operation

The fuel cell transforms the chemical energy of hydrogen into electricity, with water and heat as the resulting by-products of electrochemical reactions. The transformation of hydrogen energy is the most efficient in a fuel cell, with environmentally harmless pure water as the emission.

Legend of SIHFC symbol

 The butterfly symbol represents hydrogen as the lightest element in the periodic system; environmentally friendly energy.
The trunk of the butterfly represents two hydrogen atoms. The wings of the butterfly symbolise an electric circuit. Each of the butterfly’s antennae has a special meaning: one symbolises heat, the other water.

Barve

Light blue = hydrogen (the colourless, lightest gas)

Red = heat (stands for power and energy)

Blue = water

What are fuel cells?

There are several ways of transforming hydrogen’s chemical energy into other forms of energy. One of the most efficient ones is direct transformation of chemical energy of the fuel into electricity and heat with fuel-powered electrochemical elements, so-called fuel cells. There are several known types of fuel cells. For more information on fuel cells, click here.

Of all types of fuel cells, PEM fuel cells (Proton Exchange Membrane Fuel Cells) are the most commonly encountered, probably because they are relatively simple to make, and are, therefore, the most frequently used for various purposes.

These low-temperature cells operate at temperatures between 4 °C and 90 °C, and 3-5 bar pressure. The fuel is pure hydrogen, while the oxidant is oxygen or air. The cell only functions when the membrane contains a quantity of water that is sufficient to ensure its proton conductivity. The basic unit of a fuel cell consists of a positive electrode (cathode) and a negative electrode (anode), with an ion conductor inserted between them (electrolyte).

Gas-diffusion electrodes usually consist of a diffusion layer and a catalytic layer. The diffusion layer is a thin porous material (a carbon fibre item or carbon paper) that ensures equal distribution of gas reagents (hydrogen and oxygen) on the surface of an electrode’s catalytic layer. It consists of a micro-porous layer with a catalyst as the main component, a highly dispersed metal on the base (usually Pt on active carbon).

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