Batteries
Harvesting Energy from Regular, Day-to-Day Motions
Posted in Batteries, Electronics & Computers, Energy Storage, Renewable Energy, Energy, Hydroelectric Power, News, GDM on Friday, 30 October 2009
Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions of everyday life. Although motion is an abundant source of energy, only limited success has been achieved because the devices used only perform well over a narrow band of frequencies.
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Battery Battle
Posted in Batteries, Electronics & Computers, Energy Storage, Energy, Transportation, News, GDM on Thursday, 08 October 2009
A new type of redox flow battery from the Fraunhofer Institute for Chemical Technology (ICT) offers an advantage for electric cars. If the rechargeable batteries are low, the discharged electrolyte fluid can simply be exchanged at the gas station for recharged fluid – as easy as refilling the gas tank.
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Could Small Springs Beat Batteries?
Posted in Batteries, Electronics & Computers, Energy Storage, Energy Efficiency, Energy, News, GDM on Friday, 25 September 2009
MIT scientists have found that carbon nanotubes could be formed into tiny springs capable of storing as much energy, pound for pound, as the best lithium-ion batteries - potentially more durably and reliably.
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Better Lithium-Based Storage Systems
Posted in Videos, Batteries, Electronics & Computers, Green Design & Manufacturing, Recycling Technologies, Energy Storage, Energy, Transportation, GDM on Tuesday, 22 September 2009
Lithium-ion batteries for advanced vehicles still have issues of safety and costs in terms of materials resources and abundances, synthesis, and recycling processes. Jean-Marie Tarascon, a professor at France's University of Picardie Jules Verne, discusses materials for better lithium-based storage systems.
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Algae Blooms Broaden Battery Possibilities
Posted in Batteries, Electronics & Computers, Energy Storage, Energy, News, GDM on Thursday, 17 September 2009
Blooms of Cladophora algae may be troublesome, but they do have a positive side. Researchers at the Ångström Laboratory of Sweden's Uppsala University have discovered that the cellulose nanostructure of these algae can serve as an effective coating substrate for use in environmentally friendly batteries.
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Fuel Cell/Battery-Powered UAV Takes Flight
Posted in Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Transportation, News, Products, GDM on Friday, 21 August 2009
EnergyOr Technologies Inc., of Montreal, Canada, has designed, constructed, and tested an Unmanned Aerial Vehicle (UAV) platform to demonstrate its fuel cell hybrid technology. EnergyOr's system will achieve 8 hours flight endurance in the near future.
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Modular Battery Charge Controller
Posted in Batteries, Electronics & Computers, Energy Storage, Energy, Briefs, GDM on Monday, 03 August 2009
A John H. Glenn Research Center-developed controller features distributed charge control and a masterless communication bus, enhancing its robustness for use in battery energy-storage applications. The modular battery charge controller is required in battery chemistries that need cell-level charge control for safety.
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