Stanford researchers have figured out a way to extend the life of lithium-ion batteries up to 10 times. Silicon nanowires will soon turn a 2 hour battery into twenty for cellphones, laptops, cameras, MP3 players, and other portable devices. Yi Cui, leader of the group, feels that the applications could include cars and storage generated by solar panels. A patent application has been filed on the Li-ion and Cui is counting on a current battery manufacturer hooking up with the idea. We hope so, too.