Introduction: Graphene Supercapacitor Based Battery. Charges in Seconds...
I've put this info up before but I hadn't revealed to anyone that it was a graphene super capacitor. After much trial and error, I figured out an excellent way to make graphene in quantities I could use to put on a film and them have rolled into a capacitor. I paid a good deal of money to have a manufacturer, create the capacitor, using my graphene film.
The capacitor in the battery is approximately 3500F, rated at 2.2 to 3.8 volts.
The steps throughout, document the construction of the battery itself.
Please support this on my Kickstarter, so that I can get this funded and actually get graphene capacitors produced and available on the market. They are AMAZING! Such an enormous amount of energy storage potential in a small package. Not to mention, the battery charges in seconds!
Step 1: Building the Circuit Board
What you see in the picture is the capacitor and the beginning of the circuit board. The purpose of the circuit is to efficiently drop the 2.2-3.8 volts from the capacitor to the 1.5 volts you see from a AA, C or D battery. There is also a voltage monitor IC on the board because the capacitor can become damaged if the voltage drops below 2.2. The monitor basically enables the regulator as long as it detects a voltage above 2.2
After everything was hand soldered on to the board, I cut it and sanded it down to a circular shape that would fit inside of the battery tube.
Step 2: Putting It All Together
Here we have the capacitor inside of the battery tube with its leads sticking out. In the middle, you see the finished circuit board, cut down to size and ready to be hooked to the capacitor.
Step 3: The Charger
Recharging the capacitor was another issue. It needs 3.8 volts to charge it but you can't charge it through the top and bottom because that is the + and - terminals of the battery that is putting out 1.5 volts. So, towards the top of the battery, the casing is base metal. That bare metal is hooked to another regulator that drops 5 volts to 3.8 and then leads to the positive lead of the capacitor.
The charger itself makes a connection to the negative battery terminal and then there are 2 connects that contact the sides of the battery, allowing the capacitor to charge.
Another great thing about having a capacitor as a battery is the fact that it recharges in less than 30 seconds!
Step 4: All Done!
There it is, next to a standard alkaline battery. I've built a total of 4, with 2 of them powering one of my daughters toys for a few weeks now. It lasts just as long as the alkaline you see next to it but charges in under 30 seconds. Please support my Kickstarter campaigne so that I can get the batteries and at the very least, the capacitors out to the world so that everyone can have access to a graphene capacitor. The possiblities are endless with them! This isn't an advertisement by any means. It gives a general idea of the construction of it and the fact that the graphene capacitor is out there!