04 Apr '12, 4pm

Solar Battery Thinner Than Human Hair Is World's Thinnest and Lightest

Solar Battery Thinner Than Human Hair Is World's Thinnest and Lightest

A battery with a thickness of just 1.8 micrometers could be a solution for ultra-thin, ultra-light energy storage for small devices. At 1.8 micrometers, it is thinner than a strand of spider silk and is one tenth the thickness of the thinnest solar cells available. It is also elastic, similar to spider silk. The device is not just a battery but an incredibly thin solar cell as well, which means it can gather its own charge. Smart Planet writes , "In order to create the battery, the scientists applied ink containing an organic semiconductor to plastic film that measures 1.4 micrometers in thickness. According to the researchers, the thinnest battery to date was 25 micrometers. One gram of the solar battery produces 10 watts of energy. The efficiency of conversion from solar power to electricity is 4.2 percent, substantially lower than typical solar panels. However, the new ...

Full article: http://www.treehugger.com/solar-technology/spider-silk-so...

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