Nickel-Tin Nanowires May Mean New Micro-Batteries
Thursday, December 9, 2010 - 12:22
in Physics & Chemistry
The race is on to replace lithium-ion batteries and Rice University research may put nickel-tin nanowires in the hunt. The vertical arrays of nickel-tin nanowires are encased in PMMA, the polymer best known as Plexiglas. The Rice laboratory of Pulickel Ajayan found a way to reliably coat single nanowires with a smooth layer of a PMMA-based gel electrolyte that insulates the wires from the counter electrode while allowing ions to pass through. "In a battery, you have two electrodes separated by a thick barrier," said Ajayan, professor in mechanical engineering and materials science and of chemistry. "The challenge is to bring everything into close proximity so this electrochemistry becomes much more efficient." read more