Facebook
Google
GitHub
Linkedin
It sounds better than you might expect. Of course they aren't cheap.
https://www.nextbigfuture.com/2017/...-energy-and-store-250-watts-per-kilogram.html
"In the lab, the researchers showed that a twistron yarn weighing less than a housefly could power a small LED, which lit up each time the yarn was stretched.
To show that twistrons can harvest waste thermal energy from the environment, Li connected a twistron yarn to a polymer artificial muscle that contracts and expands when heated and cooled. The twistron harvester converted the mechanical energy generated by the polymer muscle to electrical energy."
https://www.nextbigfuture.com/2017/...-energy-and-store-250-watts-per-kilogram.html
"In the lab, the researchers showed that a twistron yarn weighing less than a housefly could power a small LED, which lit up each time the yarn was stretched.
To show that twistrons can harvest waste thermal energy from the environment, Li connected a twistron yarn to a polymer artificial muscle that contracts and expands when heated and cooled. The twistron harvester converted the mechanical energy generated by the polymer muscle to electrical energy."
