| New Method Manufactures ‘Supercapacitors’ on Flex-Film | | Print | |
| Written by Chelsey Drysdale | |||
| Monday, 30 November 2009 19:49 | |||
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LOS ANGELES – Researchers at UCLA and Stanford have developed an economical method for manufacturing flexible supercapacitors that exhibit power and energy density higher than commercially available devices. The researchers developed a method of spray printing single-walled carbon nanotubes on two flexible plastic films, putting a gel electrolyte between them. The gel electrolyte is a mix of powdered polyvinyl alcohol, phosphoric acid and water. The surface of the nanotubes collects charges, storing energy. The supercapacitor has a reported power density of 70 kw/kg. It has the possibility of improving its energy density, which could lead to supercapacitors replacing batteries.
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How the CAM engineer can make the difference. Embedded in fabrication planning is calculating panel size, checking layer stackup information, reviewing expected yields, reviewing board construction and verifying impedance control calculations. Typical panel sizes are 9 x 12˝, 12 x 18˝, 18 x 24˝, or 18 x 36˝. A number of factors need to be considered when calculating panel size. For instance, consider a small board of 25 sq. in. A relatively high number of this small board can be panelized...
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