UCLA researchers are setting a Grain of Salt size goal for their new project which is to develop a tiny version of lithium-ion batteries. This is the kind of battery you'd find in your laptop, your cellphone, and the music player you've got there on your desk. Research is said to be in early stages, but may one day power miniature electronic devices ... maybe like a little robot like they had in the one movie... Transformers? No. Batteries Not Included.