What kind of tank does a Toyota Mirai have?
The Toyota Mirai uses high-pressure hydrogen storage tanks rather than a conventional liquid-fuel tank.
As a hydrogen fuel cell electric vehicle, the Mirai stores compressed hydrogen in carbon-fiber reinforced tanks at very high pressure. These tanks are located under the floor of the car and are designed to hold enough hydrogen to power the fuel cell stack for a substantial driving range. The system prioritizes safety, efficiency, and keeping passenger and cargo space usable.
Hydrogen storage in the Mirai
Here are the core technical characteristics of the Mirai's hydrogen-tank system:
- High-pressure storage at around 700 bar (70 MPa)
- Tank material: carbon-fiber reinforced polymer (CFRP) for strength and light weight
- Multiple tanks arranged under the vehicle floor
- Total hydrogen capacity typically around 5–6 kilograms
- Range and performance depend on driving conditions and model year
- Safety features include pressure relief devices and crash-designed containment
These features balance safety with the ability to store enough hydrogen to power the vehicle for several hundred miles between fills.
Summary
The Mirai’s tank system consists of high-pressure, carbon-fiber hydrogen storage vessels operating at about 700 bar, housed in multiple underfloor tanks with a total capacity of roughly 5–6 kg to support a multi-hundred-mile range in typical driving conditions.
