One application for super capacitors that I always think about is electric planes. These small planes represent a drop in the total fuel consumption of air trav

One application for super capacitors that I always think about is electric planes. These small planes represent a drop in the total fuel consumption of air travel. The majority of it is consumed by commercial passenger airlines and shipping. The second most important metric batteries have to meet is charging time. The lower the time the plane spends on the ground, the better return on investment. Having to wait for a plane to charge is not ideal for airlines. A super capacitor power bank can be charged much faster than a lithium ion battery bank. The third is power delivery. I haven't calculated the power required to take off, but given the usual 30s "sprint" (not sure what the technical term is here) to take off the rest can be calculated from that. I haven't calculated it yet, but lithium battery packs usually are restricted to Capacity == Power i.e. 1Wh == 1W. With super capacitors that ratio is sometimes 100x that The downside to super capacitors is even the best ones created so far (in research not commercial) are the graphene ones that loose their power in 12h. This isn't a deal breaker but it does probably limit a capacitor powered electric plane to 6hour rides max Hope someone else finds this rambling interesting :)