Fuel cells are the entire buzz now-a-days, but Hitachi Maxell has pushed this cost efficient source of energy onto a new track with the introduction of a fuel cell battery that generates electricity with the help of water and aluminum in stead of just utilizing the external hydrogen and oxygen.
The 16x10x6 cm cost-effective device churns out a cool 10 watts of power, which will soon be pepped up to 100 watts, as per Hitachi Maxell. The fuel cell utilized recycled aluminum scrap that automatically generates hydrogen when reacted with water. Amazingly, 20 grams (0.7 ounce) of aluminum can power your laptop for 4 to 5 hours.
Cool Factor: Cost-effective efficient power