3D Printed batteries the size of a grain of sand are now reality. A team of engineers from Harvard and the University of Illinois at Urbana-Champaign have successfully 3D printed micro lithium-ion batteries. They are using a micro-printer to create ultrathin electrodes. This will be encased and then filled with an electrolyte solution. The result is a functional battery about the size of a grain of sand.
Think about the smaller applications that could be made with batteries as small like this. Here are some examples that crossed my mind.
- Implemented biomedical devices
- Spy gear
- Tiny robots