Friday, June 28, 2013

German Scientists Create Lithium-Ion Battery that Can Charge an Electric Car for 27 Years

Scientists at the Center for Solar Energy and Hydrogen Research Baden-Wurttemburg (ZSW) in Germany have developed one of the most efficient lithium-ion batteries yet. The promising li-on batteries indicate a vivid potential for energy storage systems, and in an electric vehicle, they are expected to retain 85 percent of their capacity after being charged every day for "about 27.4 years."
The power density of these batteries that estimates the available power per unit of weight is also very high at 1,100 watts per kilogram. For an electric vehicle this is so meaningful-short charging times and an advanced acceleration capability.
After 10,000 complete charging and discharging cycles, with a complete charge and discharge cycle per hour, these lithium-ion batteries retain more than 85 percent of the initial capacity. In other words, an electric car with those batteries could be fully charged every day for about 27.4 years and still be going strong.
Scientists working in a plant in the ZSW Laboratory for Battery Technology have created these small cells. German Federal Ministry of Education and Research and the German Federal Ministry of Economics and Technology funded this development.
In the future, the scientists want to develop electrodes for large prismatic lithium batteries that could store power from wind and solar systems.