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michka:research:supercapacitors [2014-07-01 14:15] – michka | michka:research:supercapacitors [2014-07-01 14:27] – michka | ||
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* Intercalating a sandwich layer made of printer paper dipped into the electrolyte between copper & graphene, thus replacing the insulating layer from the the dead battery | * Intercalating a sandwich layer made of printer paper dipped into the electrolyte between copper & graphene, thus replacing the insulating layer from the the dead battery | ||
- | ====Information Sources==== | + | Our wet designs were no success. |
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+ | A sushi dipped in sulfuric acid was severly attacked. Current kept on flowing, it was bubbling slightly, the solution started to become dark. It did hold voltage and quite a good charge, but after opening it up, we saw huge corrosion spots on the copper layer. | ||
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+ | Sushi dipped in salted water and demineralized water showed a strange charging behavior: current was slightly increasing, before being stable around 100 mA. They ended up not charging, or having a low and evanescent charge. | ||
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+ | Our sandwich with salted-water-wet paper had a similar charging behavior, and copper also ended up corroded. | ||
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+ | Our sandwich with demineraliued-water-wet paper had a similar charging behavior, and a low and evanescent charge. | ||
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+ | === Conclusion & Future Research=== | ||
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+ | Our best dry sandwich design seems interesting. However, we are not sure wether this behavior is a consequence of some remanent electrolyte from the dead battery still present in the graphene layer. Moreover, it proved to be unstable to design change: sushis & waffles could not hold the charge as well, and the voltage stored was highly sensitive to finger pressure. | ||
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+ | On our next session, we have to focus on electrolytes, | ||
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+ | ====Preliminary | ||
* [[https:// | * [[https:// | ||
* [[https:// | * [[https:// | ||
- | * Robert Murray Smith - Supercapacitor 101 - A home Inventor' | + | |