'Dream' smartphone battery can be fully charged in under a minute
A team of scientists at Stanford Univeristy have developed what they call a ''dream battery'', which can be fully charged in under a minute.

A team of scientists at Stanford University have developed what they call a "dream battery", using aluminium rather than lithium.
Other than being cheap, non-flammable, bendable, long-life, and environmentally friendly, the battery can be fully charged within a minute to liberate phone users from the constant search for a power socket.
Unfortunately, there is still one hurdle to clear before the battery reaches market: voltage. At present, the battery produces only about half the voltage of a regular lithium battery.
But the problem could be solved, said Hongjie Dai, professor of chemistry at Stanford and key author of the paper published online by journal Nature this week.
“Improving the cathode material could eventually increase the voltage and energy density,” he said in a Stanford press release.
“Otherwise, our battery has everything else you'd dream that a battery should have: inexpensive electrodes, good safety, high-speed charging, flexibility and long cycle life … It's quite exciting."