Development of stretchable and printable free-form lithium-ion batteries

https://techxplore.com/news/2022-03-stretchable-printable-free-form-lithium-ion-batteries.html

"new soft and stretchable organic gel material was developed and applied based on the existing binder material... able to incorporate existing lithium-ion battery materials, as they exhibit excellent energy storage density (~2.8 mWh/cm2) of a level similar to that of commercially available hard lithium-ion batteries at a driving voltage of 3.3 V or higher... mechanical stability to maintain their performance even after repeated pulling of the battery 1,000 or more times, a high stretchability of 50% or above"