More news from the battery front. Researchers at St. Andrews University in Scotland are developing a new type of battery that draws oxygen from the air as its fuel. It has the potential to carry up to 10 times the energy of today's rechargeable batteries.
The oxygen replaces a chemical component used in most batteries, reducing size and weight. The battery costs less too, because it replaces expensive lithium cobalt oxide with the far more economical porous carbon. The interaction of carbon and air can be repeated, thus setting up a charge and discharge cycle.
All of which makes the new air-fueled battery a perfect find for electric car makers, which have long struggled to reduce the bulk and weight of conventional rechargeable batteries.
Known as the STAIR (St. Andrews Air) cell, the battery could be ready to go to market in about 5 years.