Super-powered battery breakthrough claimed by US team...

The University of Illinois team says its use of 3D-electrodes allows it to build “microbatteries” that are many times smaller than commercially available options, or the same size and many times more powerful.

It adds they can be recharged 1,000 times faster than competing tech.

However, safety issues still remain.

Read more: Super-powered battery breakthrough claimed by US team - BBC News