Progress is a slow and fickel beast, that often presents itself by accident. In a mad rush for the anything goes competition for the 2016 hackaday prize I stumbled on to a new method for making supercapacitors. In literature it is often described how to make monoliths and aerogels. The problem being is they researchers always grind them up and mix with a binder then paste on electrodes. This is not the way forward.
This project will describe how to make monolithic binder free supercapacitors using activated cotton fibers.
Because of how supercapacitors work, storing charges in the interface between electrode and electrolyte they can theoretically be made as massive as one desires as long as the carbon electrode is electrically conductive enough to avoid ohmic losses. I would not have even pondered this application if the dog hair and lint supercapacitor carbon monolith had not had such a low resistance.
I believe this construction method will be used in the future everywhere for grid scale storage of energy. It solves the main problems associated with aqueous supercapacitors being mAh by total weight of the device, self discharge rates, and cost of metals used in charge collectors.
This method can easily be scaled to make room sized supercapacitors for pennies on the dollar vs lead acid batteries and all other energy storage means. I believe it is the holy grail of low cost supercapacitors that can be constructed anywhere on earth.
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