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Some scientists have successfully made the first renewable fuel cell that can store more energy than origin fuel. Electric vehicle powered potentially more environmentally friendly than gasoline-fueled vehicles because they do not produce greenhouse gas emissions, but the cells used for locomotion can not store as much energy as fossil fuels.

Now, Stuart Licht and his colleagues at the University of Massachusetts, Boston, United States, has created a fuel cell vanadium borides-air with a capacity far greater energy than the batteries of vehicles available today. “These cells have the energy capacity ten times higher than lithium ion batteries and energy density three times higher than the batteries zinc-air,” said Licht, “although all of these battery cells and work in the same way. “A production electric car the GM (General Motors) is called” Volt “, which will be launched in 2010, uses a lithium ion battery that can propel the car should be as far as 40 miles before recharging. To add this mileage, GM added a standard combustion engine to recharge the battery if it is weak. “Renewable fuel cells that we made to open the possibility of making electric-powered vehicles with unlimited mileage, no separate combustion engines, and without having to frequently recharge the battery,” said Licht. Borides of vanadium fuel cells require only air-air and fresh fuel to complete the recharging process. By using this system, a driver only stopped at refueling to get fresh fuel and continue the journey back to the vanadium borides-air cells as an energy source of vehicles.

Peter Bruce, an expert in the field of new materials for energy storage devices in St Andrews University, UK, commented: “Finding ways to save more energy than that may be stored on the tools that exist now is an important challenge and required imaginative solutions. Replacing the zinc in zinc-air battery with a vanadium anode borides is a very interesting experiment. However, this poses several challenges for practical devices, such as recharging batteries, and many more scientific questions that need to be answered. “Licht acknowledges that a lot remains to be done before the cells This fuel can be commercialized. “This study is the first study to show a very high capacity of these cells. Details of machines, systems optimization and development of the production scale should be developed,” he said.