Faster Refueling and Lower Emissions: The Power of Fuel Cells

Lagos — Fuel-cell electric vehicles (FCEVs) offer a new opportunity for the transport sector to significantly reduce emissions, with only water vapor being produced as a result of their operation. IDTechEx’s report, “ Fuel Cell Electric Vehicles 2025-2045: Markets, Technologies, Forecasts examines the technological aspects of fuel-cell vehicles and their functionality, along with key factors driving their adoption such as environmental advantages, high energy density, and reduced necessity for large batteries.

Proton exchange membrane fuel cells

Fuel-cell vehicles on the road today currently all use proton exchange membrane fuel cells (PEMFCs), which see hydrogen being pumped into a gas diffusion on the anode side, and oxygen on the cathode side.

The use of platinum catalysts helps to strip hydrogen of its electrons in order to create protons, which can then travel through the proton exchange membrane. There, they can recombine with oxygen to make water and energy. IDTechEx outlines the different materials required for PEMFCs, including platinum, graphite, or metal for the bipolar plates, and Nafion for the proton exchange membrane.

Motivations for advancing fuel cell vehicle technology

Environmental:

The environmental benefits of running FCEVs compared to combustion engine vehicles are one of the main drivers for fuel-cell technology. They can provide a zero-emission solution for transportation, including cars, buses, trucks, and light commercial vehicles (LCVs), while the absence of harmful emissions can enable local air quality improvement and help OEMs meet their emission reduction targets.

The procurement of hydrogen along with the electricity grid mix will influence the total emissions from operating these vehicles. Nonetheless, since the sole emission produced during use is water vapor, fuel cell electric vehicles (FCEVs) remain considerably more environmentally friendly compared to those powered by internal combustion engines.

Another beneficial environmental aspect is quieter vehicle operation, as FCEVs operate nearly as silently as BEVs, devoid of the characteristic noise from internal combustion engines.

Energy density:

The lower density of hydrogen enables higher energy density compared to what is possible with battery electric vehicles (BEVs). Fuel cell electric vehicles (FCEVs) can match the range of today’s internal combustion engine (ICE) cars, all while avoiding the drawback of emitting pollutants.

Thus, operational flexibility can be attained for commercial vehicles thanks to fuel cell electric vehicles (FCEVs), particularly because they weigh less than battery electric vehicles (BEVs) by not carrying the burden of a large battery pack. Although lithium-ion batteries remain necessary in FCEVs to supply additional power to the engine and store energy, these batteries are significantly smaller compared to those found in BEVs. Consequently, this reduces the environmental impact associated with their manufacturing.

Charging and infrastructure:

Fuel Cell Electric Vehicles (FCEVs) can be refueled at hydrogen fueling stations within just about five minutes. This process mirrors the ease of topping off a conventional internal combustion engine vehicle, eliminating the long wait times associated with recharging sizable battery packs found in Battery Electric Vehicles (BEVs). Consequently, the infrastructure needed for these hydrogen facilities isn’t anticipated to face similar high power demands seen in fast-charging setups used for BEVs. Thus, this setup may produce a lower overall environmental impact and put less pressure on electricity grids. According to research from IDTechEx, a single hydrogen refueling point has the potential to serve numerous vehicles much quicker than typical plug-in electric chargers do.

Challenges for FCEVs

Even though Fuel Cell Electric Vehicles (FCEVs) offer numerous advantages, utilizing hydrogen as a fuel presents several hurdles, such as it often being seen as an ineffective utilization of renewable energy.

The absence of fluctuating petrol prices from FCEVs doesn’t imply they are inexpensive, since producing hydrogen remains costly. Specifically, green hydrogen, which is necessary for making FCEVs entirely emissions-free, is even pricier and demands greater resources.

The current scarcity of hydrogen infrastructure means significant financial investments will be necessary over the short to medium term to facilitate broader adoption of FCEVs. Additionally, since government backing for fuel-cell vehicles remains minimal, IDTechEx proposes that stricter penalties on fossil fuels and greenhouse gas emissions might encourage increased funding towards eco-friendly technologies like FCEVs.

The readiness of FCEV components, along with their dependability and efficiency, might present difficulties due to their lack of prevalence and the restricted availability of data. Consequently, this leads to a scarcity of standardized refueling procedures and storage pressure norms.

BEVs are continuing to see much greater interest currently, though in Japan and Korea, there has been notable funding for hydrogen infrastructure, alongside subsidies for FCEVs, to help drive uptake. South Korea has also provided subsidies for FCEVs in recent years, much greater than those offered for BEVs.

Provided by Syndigate Media Inc. ( Syndigate.info ).