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Fuel Cells vs Batteries: What’s the Difference?

A battery stores energy

A fuel cell takes an energy source and converts it into electrical energy

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People all around the globe are increasingly switching to cleaner modes of transport, such as electric cars. But when it comes to actually investing in an EV, and possibly the price of installing an electric car charging point, their are many options.

Many people tend to overlook hydrogen fuel cell cars, opting instead for the more popular option of a battery-powered electric vehicle. 

In this article, we’ll guide you through which best suits your needs: batteries or fuel cells. We’ll discuss the difference between battery and fuel cell cars, pointing out the pros and cons of both, differences in price and levels of efficiency. You’ll be on the road to a smaller carbon footprint in no time.

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Fuel cell vs battery infographic

What’s the difference between fuel cells and batteries?


Let’s go over the basics. 

While both of these technologies power vehicles, they do it in completely different ways. The biggest difference between the two is that a battery stores energy, while a fuel cell takes an energy source – such as hydrogen, propane, diesel, or natural gas – and converts it into electrical energy. A fuel cell can also have a battery as a system component to store the electricity it’s generating.

Although fuel cells are predominantly used with hydrogen, they can also use fossil fuels. Rather than ‘combusting’ the fuel’s chemical energy, it ‘converts’ it. The result is a fuel cell that can create clean electricity, efficiently and effectively.

Types of electric vehicle fuel cells and batteries


Types of batteries

  • Lithium-ion batteries Most electric vehicles run off lithium-ion batteries. They have a high power-to-weight ratio, high energy efficiency, good high-temperature performance, and low self-discharge
  • Nickel-metal hydride batteries These batteries are widely used in hybrid-electric vehicles, and tend to have a much longer life cycle than lead-acid batteries. However, nickel-metal hydride batteries are quite pricey, have high self-discharge, and also have high heat generation in hot temperatures
  • Lead-acid batteries – Lead-acid batteries can be designed to be high power, whilst also being affordable, safe, and reliable. However, these batteries can also have poor cold-temperature performance, and can have a shorter life cycle than other batteries


Types of fuel cells

  • Proton exchange membrane (PEM) – This uses a ‘polymer electrolyte’ to convert fuel into energy, and is one of the most common fuel-cell types. It offers a compact build, great longevity, and quick response. However, a PEM can be expensive, it can be complex, and it uses specialised fuel 
  • Alkaline fuel cell (AFC) – This uses an alkaline solution to convert energy. It has high efficiency, involves low manufacturing costs, and is a simple system with no compressors. However, it’s bulky and requires pure hydrogen and oxygen
  • Molten carbonate fuel cell (MCFC) – This uses a molten-carbonate solution to convert energy. It has high efficiency, good fuel compatibility, and is suitable for large-scale vehicles. However, MCFC is also susceptible to corrosion, has a slow start, and tends to have a short life
  • Phosphoric acid fuel cell (PAFC) – This uses phosphoric acid to convert energy. This was the first type of fuel cell to become commercial. It tolerates fuel impurities, and is suitable for large-scale models. The cell is, however, susceptible to corrosion, quite bulky, and has low efficiency

Are fuel cells more expensive than batteries?


A lot of investment has been pumped into both battery-powered and fuel cell vehicles over the past decade – and as a result, prices for both products have decreased massively. 

The price of fuel cell vehicles – especially buses – has been reduced by 65% over the past 10 years, whilst batteries have seen a decrease in costs by more than 85% in the same timeframe.

Despite this drop in prices, fuel cell cars are likely to remain pricey for quite some time, whereas battery-powered cars are predicted to continue falling in price. This is mainly down to the fact that a lot of governments are pushing for the electrification of transport. In fact, the UK government is aiming for 50% of all new vehicles sold in the UK to be electric by 2035.

Despite the rising popularity of electric vehicles, only 55% of people would have an EV if it were free, according to our National Home Energy Survey.

We’ve outlined how much you can expect to pay as a starting price for each type of vehicle below. 

Type of car
Starting price
Time to refill
Hydrogen vehicle (fuel cell)
200-250 miles
3-4 minutes
Electric vehicle (battery)
100-310 miles
30 minutes-12 hours
Petrol or diesel vehicle
300-400 miles
2-3 minutes

Data from euronews


Why are fuel cell cars more expensive than electric vehicles?

Fuel cell cars are heavily reliant on platinum – a precious metal, which acts as a catalyst during power generation. This is the main factor leading to a larger price tag for hydrogen fuel cell cars. That being said, the amount of platinum needed for fuel cells has already reduced greatly, so perhaps this will be less of an issue in the future. 

As well as platinum, hydrogen itself is an expensive fuel, and is extremely difficult to manage. 

“Hydrogen and synthetic fuels will remain more expensive than an electric drive, as more energy is required for their production.” – Dr. Frank Welsch, Member of the Board of Management of the Volkswagen Passenger Cars brand with responsibility for Technical Development 

Modern fuel cell cars still, unfortunately, have cells that take up a lot of space – meaning the vehicles themselves need to be a little on the large side, too. This is a major reason why some people are unable to justify investing in a fuel cell car. An electric battery, on the other hand, is able to fit in very small cars, making it a much cheaper option. 


How much do they cost to run?

On average, the cost of running a hydrogen car is almost twice as high as that of battery-powered vehicles that are charged at home. 

According to Voltswagen, drivers currently pay around €9-12 per 100 kilometres for a hydrogen car, while battery cars cost between €2-7 per 100 kilometres, depending on electricity prices in individual countries. 

How long do fuel cells last?


There’s a lot of disagreement over how long batteries and fuel cells last. In terms of range, you can expect to get much more out of a hydrogen car, averaging at 200-250 miles. Realistically, however, this will all depend on a few factors, including the type and size of battery/cell you get, how frequently you drive, and even how often you refill/recharge.

On average, fuel cells are designed to last about 150,000–200,000 miles, whereas the likes of Nissan and Tesla only offer a guarantee of 100,000 miles for their electric batteries.

woman charging electric car

Pros and cons of fuel cells and batteries

Fuel cells
Time it takes to refill/recharge
Refill/recharging infrastructure
Initial cost
Cost to run

Below, we’ve gone into a bit more detail on some of the pros and cons that will help you make the important decision between choosing a battery-powered or fuel cell car. 


Refueling vs. recharging 

Generally, it’s much faster to refill a hydrogen tank than to recharge a battery, so you might be able to save yourself some time with a hydrogen car. 

As a general rule of thumb, you can expect an electric vehicle to take anywhere between 30 minutes and 12 hours to charge, whereas a hydrogen fuel cell will only take a few minutes. This will, of course, depend on the type and size of cell you go for. 

Although, if you opt for a hydrogen fuel cell over a battery powered EV, you might struggle to find somewhere to actually fill up your car. Hydrogen stations are far less common around the globe than electric vehicle charging stations. It is predicted that this poor infrastructure will improve over time, but it’s not likely it will match the scale of electric vehicle charging any time soon. 



When it comes to efficiency – or, in other words, the amount of effort it takes to convert energy – batteries are far more efficient than fuel cells. In fact, Volkswagen stated that electric cars have an efficiency level of between 70-80%, depending on the model. That means about three quarters of the electricity generated is actually applied to running the car.

On top of this, a hydrogen-fuel cell requires 2-3 times more energy to drive the same distance as an electric car.

“In the case of the hydrogen-powered e-car, the losses are much greater: 45% of the energy is already lost during the production of hydrogen through electrolysis. This means that the hydrogen-powered e-car only achieves an efficiency of between 25-35%, depending on the model.” – VW

Fuel cells can, however, operate at higher efficiencies than combustion engines – resulting in lower emissions than your typical fossil-fuel car. 



Both hydrogen fuel cell cars and electric vehicles release far fewer emissions than petrol and diesel cars. Hydrogen fuel cells only emit water whilst on the roads, so there are no air pollutants. As for electric vehicles, the level of emissions depends on your energy source – if the car uses electricity that is generated with 100% renewable energy, this will also release zero emissions.

Although fuel cells are widely used for hydrogen, they can also convert energy from other fuels, including propane, natural gas, and diesel. Although these are ‘dirty’ fuels, there are far fewer emissions generated if they go through a fuel cell, rather than a standard generator.

Type of energy source
CO2 emissions per megawatt hour( MWh)
Coal-fired generator
1000 kg
Oil-fired generator
750 kg
Natural-gas-fired generator
500 kg
Fuel cell
400 kg

Data from NY Engineers


Currently, most electricity used to produce and run electric vehicles comes from fossil fuels. The CO2 emissions generated from electric car production are 59% higher than the level in the production of traditional internal combustion engine vehicles. The key reason behind this is largely down to the battery manufacturing process.

The level of both cars’ emissions also comes down to where the electric car is being made. 

An EEA report found that in China, 35-50% of total EV manufacturing emissions arise from electricity consumption for battery production – up to three times higher than in the United States. If electricity was generated by wind power alone, however, China would see a 50% drop in emissions from the production phase.

Check out the chart below to see how emissions can fluctuate depending on location:

Thankfully, both batteries and fuel cells are now able to be recycled once they reach the end of their life cycle. This means that fewer emissions will be created in the manufacturing of future products, as there will be less need to resource more materials. 

So what’s right for me?


If affordability, efficiency, and eco-friendliness are at the heart of your concerns, electric vehicles may be for you. Current electric vehicle models are already reaching similar prices to some combustion-engine models. In contrast, the hydrogen car will always remain more expensive than the battery car – this is due to the complex technology and high fuel costs involved. 

However, if you’re a regular long-distance driver, a hydrogen fuel-cell car might work better. A fuel-cell system isn’t range-constrained like a battery-electric system – indeed, they are able to carry enough fuel for 250-350 miles. Plus, their tanks can be refilled much faster after a long journey. 

Admittedly, range is becoming less of an advantage in recent years, since the new generation of electric vehicles’ ranges will increase to 400-600 kilometres, while charging will become increasingly fast.

Whichever option you choose to go with, you can rest assured that your decision will be much kinder to the planet than your current combustion engine. 

Written by:
Beth has been writing about green tech, the environment, and climate change for over three years now – with her work being featured in publications such as The BBC, Forbes, The Express, Greenpeace, and in multiple academic journals. Whether you're after a new set of solar panels, energy-saving tips, or advice on how to reduce your carbon footprint, she's got you covered.
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