Nanocables could lead to more powerful lithium-ion batteries
Thursday, January 28, 2010 - 20:07
in Physics & Chemistry
(PhysOrg.com) -- By itself, titanium dioxide (TiO2) is a very poor electrode. Electrons move very slowly through the material - so slowly, in fact, that it can take years to fill a millimeter-thick piece of TiO2. However, things change when the TiO2 is extremely thin: a 10-nm-thick piece of TiO2 can be filled with electrons in milliseconds. Inspired by this ability, scientists have recently investigated whether TiO2 could be useful for fabricating high-capacity batteries.