Twisted carbon nanotubes can store up to three times more energy than standard lithium-ion batteries. This is according to a recent research collaboration between Japan and the US. The technology could lead to lightweight, compact, and safe implants and sensors.
Carbon nanotubes are extremely light yet stronger than steel. They have been used in various futuristic applications due to their superior properties. Researchers twisted carbon nanotubes into ropes, which were then coated with substances to improve strength and flexibility.
The team found that the twisted carbon nanotubes could store 15,000 times more energy per unit mass than steel springs. This is impressive, but the researchers knew they had to compete with lithium-ion batteries, which have a high energy density. They successfully demonstrated an energy storage density three times higher than standard lithium-ion batteries.
The technology has potential for mechanical energy storage and could be used in devices like implants, where safety is crucial. The team is working on a prototype sensor to test the twisted carbon nanotubes as an energy source.
Source: https://interestingengineering.com/energy/twisted-carbon-nanotubes-energy-storage