New battery technology could give your iPhone the staying power of a Nokia 3310

The return of the Nokia 3310 has given gadget fans a glimpse back at the days when phones would run for days - even weeks - on a single charge.

But rather than junking in your pocket computer that'll give out after eight hours, the world of science is doubling down on improving battery life .

Professor John B. Goodenough (as well as possessing the greatest name in academia) is also the inventor of the lithium-ion battery. At 98 years old, you'd forgive the American engineer if he wanted to take things a little bit slower these days.

Not a bit of it. Professor Goodenough has led a team at the University of Texas into building the first all-solid-state battery cells that could power the phones of the future.