The principle.

Fuel cells generate electricity when the oxygen electrochemically reacts with hydrogen to create water. While there are different types of fuel cells, the principle is the same in all of them: the fuel cell consists of two electrodes, a negative anode, and a positive cathode. They are separated from each other by either a solid or fluid electrolyte that allows electronically charged particles to flow between the electrodes. Often, a catalyst (such as platinum) is used to accelerate the reaction at the electrodes.

Fuel cells are therefore categorized according to the electrolyte used. Each type of fuel cell uses different materials and fuels, and they are each suitable for specific applications. PEM (proton exchange membrane) fuel cells are the best for the requirements of the telecommunications industry.

• Low operating temperature (20°C - 80°C)
• Quick starts. A fuel cell is up and running in only a few seconds. integrated double-layer capacitors ensure uninterrupted power supply
• Compact design/high energy density