Feb
05
2007

Better than batteries

Batteries recalled

Ultracapacitors to replace batteries
Ultracapacitors to replace batteries
Batteries start fires. Batteries pollute. Batteries wear out. Batteries can leak acid. What the world needs is a better way to store electic energy. The people who invested in Google, Amazon, and AOL are now putting their money in ultracapacitors.

New ultracapacitors can replace batteries

If a new company called EEStor delivers on its promises, storing electric power in what it calls ultracapacitors will change the world.

Among EEStor's claims is that its "electrical energy storage unit" (EESU) could pack nearly 10 times the energy punch of a lead-acid battery of similar weight and, under mass production, would cost half as much.
It also says its technology more than doubles the energy density of lithium-ion batteries in most portable computer and mobile gadgets today, but could be produced at one-eighth the cost. TreeHugger

EEStore has contracted to deliver its first EESUs to ZENN Motor Company in 2007 to use in their electric vehicles. It also has patented "Electrical-energy-storage unit (EESU) utilizing ceramic and integrated-circuit technologies for replacement of electrochemical batteries."

What is an ultracapacitor and how does it work?

According to Clean Break via The Energy Blog

  • It is a parallel plate capacitor with barium titanate as the dielectric.
  • It claims that it can make a battery at half the cost per kilowatt-hour and one-tenth the weight of lead-acid batteries.
  • As of last year selling price would start at $3,200 and fall to $2,100 in high-volume production
  • The product weighs 400 pounds and delivers 52 kilowatt-hours.
  • The batteries fully charge in minutes as opposed to hours.
  • The EEStor technology has been tested up to a million cycles with no material degradation compared to lead acid batteries that optimistically have 500 to 700 recharge cycles,
  • Because it's a solid state battery rather than a chemical battery, such being the case for lithium ion technology, there would be no overheating and thus safety concerns with using it in a vehicle.

A capacitor is like a grilled cheese sandwich. The electrical energy is stored in the bread slices. The cheese needs to prevent the stored electricity from leaking across to the other side. In ultracapacitors the pressure will be over a thousand volts. The company that can solve ultracapacitor size, weight, leakage, cost, and safety issues will have the "holy grail" of electric storage.

Your Comments, Thoughts, Questions, Ideas

clint's picture
clint says:

This totally rocks!

Take that BIG OIL!

posted on Tue, 02/06/2007 - 9:59am
Anonymous's picture
Anonymous says:

Wow, this could really solve a lot of problems. Hope it works.

posted on Sat, 02/24/2007 - 10:59am
Anonymous's picture
Anonymous says:

sounds good, but they look really big, or are the pictures of several of them?

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posted on Sun, 03/18/2007 - 2:20pm
ARTiFactor's picture
ARTiFactor says:

The ones used in cars will be BIG - 400 pounds. The ones pictured here are only a few pounds.

posted on Tue, 03/20/2007 - 2:11pm
Ed Carey Sr's picture
Ed Carey Sr says:

What if . . . instead of one big 400 pound Ultracapacitor,
.....there were 400 small ones and
..........each Ultracapacitor weighed one pound?
..........Then they could have a controller
..........that charged/discharged them, in sequence, as required.
.....If each one took a few seconds to charge,
..........then it might take ten minutes to charge them all.
.....If each one could discharge power for 1/8 to 1/4 of a mile,
..........than they could be discharged one after another and
..........might go 50 to 100 miles on a charge,
..........depending on if there were hills or not.
.....With regenative braking rechargeing them on the way down and
..........maybe solar cells on the roof, extending this range.

posted on Fri, 03/30/2007 - 12:46pm
Ed Carey Sr's picture
Ed Carey Sr says:

Check out MIT's article on Nanotube-enhanced Ultracapacitors comments on size VS energy storage.
http://web.mit.edu/newsoffice/2006/techtalk50-16.pdf

posted on Fri, 03/30/2007 - 1:58pm
JJ's picture
JJ says:

I think it's a good idea to find a substitute for batteries.

posted on Thu, 04/19/2007 - 11:33am
Vaddy's picture
Vaddy says:

Hi folks,
check this out it looks like this technology gives much more power!!! ,a href="http://www.apowercap.com/">www.apowercap.com

posted on Tue, 07/03/2007 - 3:32am
ARTiFactor's picture
ARTiFactor says:

Thanks for the link. Here are some clickable links to their ultracapacitor technology page and their products page.
When the engine in my Geo Metro dies I would like to replace it with an electric motor (a surplus starter motor from jet engine). Hopefully the price on these ultracaps will be reasonable by then.

posted on Fri, 07/06/2007 - 9:40am
Anonymous's picture
Anonymous says:

I'm using a surplus starter motor in my current EV, check it out at: www.texomaev.com , I hope to someday add some ultracapacitors to my current battery pack, so they will supply the brunt of the current requirements during acceleration in the EV, then recharge off the battery bank, for the next time, I need ample current draw.

posted on Wed, 09/19/2007 - 10:35pm
ARTiFactor's picture
ARTiFactor says:

Thanks for the link to this site about electric car conversions. I also recommend checking out these links I found there:

posted on Thu, 09/20/2007 - 9:34am
ARTiFactor's picture
ARTiFactor says:

For info on ultracapacitors, check out ultracapacitors.org. Thanks Jim Johnson for the link.

posted on Tue, 01/29/2008 - 9:17pm

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