Brilliant scientists have discovered a way to make small generators to create electricity on their own, enabling us to hopefully one day replace batteries.
The Nanogenerator uses a technique of lining up zinc oxide nanowires inside of a special electrode. Tiny filaments are sent into movement by natural forces like blood flow, walking, mechanical vibration or ultrasonic waves. The devices are so minuscule that thousands of them could fit on a head of a pin.
Enough electricity could be generated to power a small biosensor implanted within the human body which has great benefits since typical batteries cannot be used in the body because of toxic materials like lithium and cadmium.
One of the men behind this project, Professor Zhong Lin Wang says:
“If you had a device like this in your shoes when you walked, you would be able to generate your own small current to power small electronics,” Wang noted. “Anything that makes the nanowires move within the generator can be used for generating power. Very little force is required to move them.”
In the near future, nanogenerators are hoped to replace batteries including the one in your cellphone.