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March 11, 2007



Hrmm, so that EEStor UltraCapacitor might not be fake after all?

Harvey D.

Non-chemical Energy Storage Units (ESU) have a very promising future.

Their ruggedness, quick charge/discharge feature + inherent much longer life make them ideal for PHEVs, BEVs and many other applications.

Competing parallel development is healthy for ESUs. May the best technologies win.

DOE (+ Power Companies + Vehicle manufacturers) should multiply the investment in that specific application. It may be what is required to replace fossil fuel once and for all.


If UltraCapacitors work as they claim:

Not only would it be able to replace oil
But it would also be able to replace coal

Since the one thing keeping wind and solar off the grid is that they can't supply "on demand" power.


I like the lead acid graphite design for serial plugin hybrids. Low cost beats energy density and quick charge in a vehicle with overnight charge with a 25 mile battery range.

But the others are cetanly promising for the future. Mass production will make the difference on cost.

Very efficient backup generators will help too.


Well, if the car has 500 mile range, and a 6 minute recharge, and the ability to charge from a wall socket (abeit about 24 minutes to recharge)

Why would you need a backup generator?


Thats better range and refueling than gasoline cars.

Jason C

EEStor sounds good, only one problem. What is the POWER density of their capacitors? Energy density was never the problem with capacitors. It's the volumetric power density that kills them.

Paul Dietz

Energy density was never the problem with capacitors. It's the volumetric power density that kills them.

Surely you have that backwards?



You are correct. Jason has that backwards.

lto 5 tape

I am here to inform all of you about data storage devices. AS i know LTO technology is providing lot of storage capacity and data security like lto 5 tap.

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Batteries/Hybrid Vehicles