Researchers develop stretchable batteries that could transform wearable devices

Two studies reveal flexible batteries for implants and wearables, stretching up to 5,000% and using hydrogels inspired by electric eels.

: Researchers are developing flexible batteries for wearable devices and implants. A team from Nanjing University created a lithium-ion battery that can stretch up to 5,000 percent. Another group from the University of Cambridge devised a jelly-like material that can stretch and revert to its original shape.

Researchers are tackling the problem of rigid batteries by developing flexible alternatives. A team from Nanjing University created a lithium-ion battery with components that stretch up to 5,000 percent of their original length and remain healthy after about 70 full charge cycles.

Simultaneously, the University of Cambridge presented another flexible battery approach. They developed a jelly-like material made of hydrogels that can stretch and revert to its original shape, maintaining charge by adjusting the salt content.

The Cambridge team's solution drew inspiration from the electric eel, leveraging biological structures to improve mechanical attributes. Both innovations aim to enhance wearables and implants, making them more adaptable to body movements.

flexible batterieswearable deviceshydrogelsElectronics