Stanford Researchers Build a Better Battery

A new way to extend battery life would allow smartphones to last three to four times longer on a single charge, Stanford University researchers have found. A team led by Yi Cui, professor of materials science and engineering, has developed pure metal anode prototypes, which differ from the lithium-ion batteries seen in most devices. The team's anode is close to a commercially viable product, but we are still some time away from seeing these battery designs in our smartphones, Cui said.