![]() Electricity required to run the powertrain is supplied by the fuel cell, which itself uses hydrogen stored on board the vehicle. Thanks to a simple chemical reaction between oxygen and hydrogen molecules, the fuel cell supplies electricity to the engine and recharges the battery.īut what is the difference between a hydrogen car and a traditional electric car? Electric vehicles use lithium-ion batteries to ‘simply’ store electric energy taken from the grid each time they are plugged in. Hydrogen fuel cell vehicles are part of the electric-car family, but they use a different source of energy: hydrogen. Fuel cells on cars generate the electric current needed to power the engine and recharge the battery, much like with electric vehicles. When they mix with hydrogen ions from the electrolyte, they form water molecules – the fuel cell’s only by-product. Inside the cathode, the catalyst helps oxygen from the surrounding air to combine with electrons coming from the electrical circuit, thereby creating oxygen ions. Hydrogen ions pass through the electrolyte to the cathode, while electrons pass through an electrical circuit, thus creating the electrical energy that powers the electric motor and battery. ![]() Inside the anode, a catalyst breaks down hydrogen into electrons and hydrogen ions. In the case of a hydrogen fuel cell, hydrogen is converted into electricity. The way a fuel cell works is quite simple and is based on an electrochemical reaction called oxidation-reduction (redox) Catalysts are used to separate the two electrodes from a central electrolyte, which can be either liquid or solid and helps ions move about. A fuel cell comprises two electrodes: an oxidizing anode that emits electrons and a reducing cathode that collects electrons. ![]() The way a fuel cell works is quite simple and is based on an electrochemical reaction called oxidation-reduction (redox). So, how does it work? And what advantages are there to using it on a daily basis? How does a fuel cell work? Thanks to their low environmental impact, the technology has piqued the interest of automotive manufacturers looking for sustainable mobility solutions for a cleaner, carbon-free future. Hydrogen fuel cells are one of the most common types of fuel cell and run on a mix of hydrogen and oxygen. Known as energy converters, they directly transform fuel into energy, producing electricity, water, and heat. How does a car with a hydrogen fuel cell work? What are the main issues with this new form of mobility? Here is an overview of the Group’s latest hydrogen innovations.įuel cells are still relatively unknown for many people. There are multiple advantages to running vehicles on hydrogen fuel cells: cars emit only water vapour, run silently, offer a driving range and performance that are on par with current cars, and take only 3 to 5 minutes for a complete refill. While still relatively small for the time being, it is a market that is constantly growing.
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