German Scientists Co-Develop World’s “Smallest Battery”

March 2022

Researchers at the Technical University of Chemnitz and Dresden’s Leibniz Institute IFW have constructed a battery the size of a dust particle. Scientists at the Changchun Institute of Applied Chemistry were also involved in the project, which is being touted as the world’s tiniest battery.

“Advances in microelectronics have enabled the use of miniaturized computers for autonomous intelligence…less than one square millimeter across and a few hundred micrometers thick, creating an environment for ubiquitous computing,” wrote the research team in the scientific journal Advanced Energy Materials.

The prototype battery is capable of reaching a minimum energy density of 100 microwatt hours and can power the world’s smallest computer chips for around ten hours. One example of its potential use would be in tiny sensors and actuators implanted in human bodies.

© TU Chemnitz/Jacob Müller