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Stable lithium anode may triple battery efficiency

di, 29/07/2014 - 17:04

Stanford University researchers claim to have created the first stable pure lithium anode in a working battery by using carbon nanospheres as a protective sheath to guard against degradation. As a result, the researchers predict that commercial developments may eventually result in anything up to a tripling of battery life in the not-too-distant future. At a basic level, a battery is composed of... More »

 

Stanford researchers develop self-cooling solar cells

di, 29/07/2014 - 17:03
Self-cooling Solar Cells Boost Power, Last Longer

Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells—keeping them cool, even in the blistering heat of the noonday Sun. By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers led by Shanhui Fan, an electrical engineering professor at Stanford University in California has... More »

 

New device generates electricity from condensation

di, 29/07/2014 - 17:01
Water condensing and jumping from a superhydrophobic surface can be harnessed to produce electricity

Last year, MIT researchers discovered that when water droplets spontaneously jump away from superhydrophobic surfaces during condensation, they can gain electric charge in the process. Now, the same team has demonstrated that this process can generate small amounts of electricity that might be used to power electronic devices. The new findings, by postdoc Nenad Miljkovic, associate professor of... More »