Flexible batteries made of crumpled nanotube forests could help power wearable electronics.
The flexible, stretchable batteries were created by a team from Michigan State University by growing ‘crumpled vertically aligned carbon nanotube forests’ on an elastic material. Stretching the material will cause the individual nanotube trees to move and come in contact with one another, conducting electricity no matter which way the material is pulled.
According to Changyong Cao, director of Michigan State’s Soft Machines and Electronics Laboratory, “Even when it’s stretched up to 300% along each direction, it still conducts efficiently. Other designs lose efficiency, can usually be stretched in only one direction or malfunction completely when they are stretched at much lower levels.”
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