It’s part of the effort to deliver a cheaper, safer alternative to dominant lithium-ion packs. Scientists develop breakthrough battery tech — here's how it could be 'vital' for next-gen EVs ...

The smallest battery is around 2 square millimetres in area 3, or several times larger than a smart dust chip. And it’s not powerful enough to continuously drive the complex functions of a device.

This isn’t just another cool robot; it’s the first in the world capable of replacing its own battery without any human assistance. Yes, you read that correctly—no human intervention required.