The world's smallest battery; it is one one-hundredth the size of a red blood cell and puts out twenty one-thousandths of a volt. Its terminals are pillars of copper and silver atoms piled 100,000 high by scientists using a scanning tunneling electron microscope.
To continue reading:
Want the full story?
Get TIME the way you want it
Week Digital Pass — $4.99
Pay-As-You-Go DIGITAL ACCESS — $2.99
Year ALL ACCESS — Just $30! Best Deal!
Print Magazine + Digital Edition +
Subscriber-only Content on TIME.com
Learn more about the benefits of being
a TIME subscriber
If you are already a subscriber sign up — registration is free!