Tiny battery made from silk hydrogel can run a mouse pacemaker

A lithium-ion battery made from three droplets of hydrogel is the smallest soft battery of its kind – and it could be used in biocompatible and biodegradable implants

​A lithium-ion battery made from three droplets of hydrogel is the smallest soft battery of its kind – and it could be used in biocompatible and biodegradable implants A lithium-ion battery made from three droplets of hydrogel is the smallest soft battery of its kind – and it could be used in biocompatible and biodegradable implants