Quote:
Originally Posted by redpoint5
Yeah, a 10 kWh supercap bank would be room-sized.
AllDarc was hyping some technology that was both a supercap and battery, but then went silent on it.
|
Right. If built with commercially available 10Wh/kg caps it would weigh a metric tonne, that much capacity is not practical yet for car use even though you'd be able to fit several in a room 
But in the near future things may change.
https://phys.org/news/2018-02-altern...r-reality.html
Quote:
|
If these values of capacitance can be achieved in production, it could potentially see supercapacitors achieving energy densities of up to 180Wh/kg—greater than lithium ion batteries.
|
https://www.sciencedirect.com/scienc...08622318301143
So who knows. Except that some lithium batteries already have higher energy density than that.
Nor do we know what it will cost. As energy density increases cost will become the all deciding factor.
However.
https://energystorageforum.com/news/...supercapacitor
Quote:
|
This technology represents a fierce competitor to lithium ion batteries and could potentially replace the lithium batteries in the future. Monaghan compared the cost for this type of graphene supercapacitor at $100 per kWh to Tesla’s target price for its batteries that will be produced at its GigaFactory at $150 USD per kWh by 2020.
|
Their comparison goes awry; Tesla is already below $100/kWh on the cell level. But nonetheless, if supercaps can get that close that's good.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
Last edited by RedDevil; 02-06-2019 at 10:10 AM..
|