In the twenty-first century you'd be hard pressed to find a piece of every day kit that doesn't have a power cell of some kind running it. Cellphones, tablets, laptops, MP3 players... they all need to be plugged in periodically to recharge. Under optimal conditions they can go two or three days in between top-offs but sometimes that isn't practical. Additionally, rechargable power cells have a finite lifetime and start to run dry faster and faster after two or three hundred recharges. This next bit of tech makes me wonder... a research team at Virginia Tech has figured out how …