No matter what gadget you favor they all have one essential drawback – the batteries eventually will run out and you will need to recharge them. This is the reason why the subject of batteries has been the focus of many scientific research projects. Some of these are fairly interesting as we will find out here.

There is a purse that allows ladies to recharge their cellphones on the go. It has a pocket lined with special material that allows the phone to recharge. In 3-D printing you have a prototype of a small battery that can literally be printed out and used to supply electricity to tiny devices. These lithium-ion micro batteries could spearhead a major revolution in medical care.

Did you ever think wood could be converted in to battery? Apparently it can be done say researchers at the University of Maryland who have coated a thin sliver of wood with tin to produce an economic and eco friendly battery. This one’s still in the testing stage, but it promises to give a major boost to solar power usage.

The researchers are working out a way to recharge this wooden battery using the most abundant natural resource we have, the power of the yellow sun in the sky. Perhaps you can come up with an interesting science project on how to charge your batteries in an innovative manner.