Can batteries power an airplane?
Batteries power everything from your cell phone to equipment on the International Space Station!
The X-57 uses rechargeable lithium-ion batteries.
Lithium-ion Batteries
When batteries are charged, electrical energy is converted to stored chemical energy. When a circuit is completed, the electrical energy is released for use, and the battery loses charge.
X-57 Setup
X-57 Batteries are:
- Commercial lithium-ion, in two 400 pound packs
- Placed inside custom-designed battery packs
- Located in the cabin
- Supplies 23 kilowatt hours of energy
- Extensively tested for safety, energy usage and weight
![50 pound battery pack.](images/50-pound-battery-pack.png)
Testing
Successful Battery Test
The battery can power the aircraft for the entire flight without overheating to unsafe levels.
Contained Thermal Runaway
Unsuccessful Battery Test
Thermal runaway can happen if a battery overheats, and spreads to other cells, sometimes leading to battery fires.
Thermal Runaway