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Thursday, December 20, 2007 - 10:14pmSanction this postReply
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Wow! Imagine taking a laptop battery that gives you 2 hours and multiply that by 10 = 20 hours. Or an electric car run on batteries that currently can go 100 miles being able to go 1000 miles. Or digital cameras and cellphones that can go for days or weeks without recharging.

Of course, things that work in a lab still have a lot of testing to go through: the thing has to be "scalable", ha to work for different sizes of batteries...and when you pack in that much power it can't leak or explode or catch fire...and must be resistant to vibration (the car) and to extremes of temperature and so on.

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Post 1

Friday, December 21, 2007 - 5:42amSanction this postReply
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Thanks, Dean!

 

Electric Cars

Tesla Roadster 
I learned of this product from a News Scan story in the November SCIENTIFIC AMERICAN. That note concerns improved efficiency in electric motors (3-phase AC induction) attained by replacing the usual aluminum components of the rotor of the motor with copper. Such motors are being used in this new car, and copper rotors may also come to be used in new generators for all kinds of power plants for improved efficiency.
http://www.teslamotors.com/
http://www.teslamotors.com/blog4/?p=45
When Alan Greenspan was interviewed in September on Book-TV, he suggested that electric plug-in cars might be the best way to reduce dependence on petroleum for energy. Batteries for electric cars could be recharged at home overnight. This would utilize our base-load electric power, which is supplied by the nuclear plants.
GM Volt
http://www.technologyreview.com/Energy/18833/

 

Improving Transportation Energy Storage
A. Battery-Ultracapacitor for Cars
        http://www.technologyreview.com/Biztech/18086/

     What is an ultracapacitor?
        http://www.ultracapacitors.org/ultracapacitors.org-articles/how-an-ul...

B. Flywheels
        http://www.sciencenews.org/articles/20070519/bob8.asp

    for Buses
        http://www.utexas.edu/research/cem/news_sept_07.html

   and for Trains
        http://www.xlrotor.com/paper_pdfs/ISMB9-65,_PN_289_-_Caprio.pdf


Nanoscomposite Paper Battery and Supercapacitor

Shocking Sheets - Science News 8/18/07
"Flexible Energy Storage Devices Based on Nanocomposite Paper"
V. L Pushparaj, S. M. Manikoth, A. Kumar, S. Murugesan, L. Ci, R. Vajtai, R. J. Linhardt, O. Nalamasu, P. M. Ajayan,
Proceedings of the National Academy of Science USA 104, 13574-13577, (2007).

(Edited by Stephen Boydstun on 12/21, 6:12am)


Post 2

Friday, December 21, 2007 - 6:57amSanction this postReply
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I purchased a lithium ion polymer battery about a year and a half ago from China and it was state-of-the-art at the time. It is a 36 V 8AH battery that weighs 4.6 pounds and is about the size of a small box of chocolates. This for a new sport/mode of transportation that I'm trying to develop and something 10 times as light would bring it to a new level of viability.

Sam


Post 3

Friday, December 21, 2007 - 1:22pmSanction this postReply
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They are developing a rechargeable carbon nano-tubule battery that carry a huge a charge and recharge within seconds, but the problem is controlling the release, since it is so powerful that if it is discharged instantly it will explode like a small bomb.

Ted


Post 4

Friday, December 21, 2007 - 3:02pmSanction this postReply
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Ted, you would think they could solve that problem by dividing it into a hundred sections each of which wouldn't pack much punch but which have to be drained/discharged sequentially. And recharged the same way.

Use a simple switching mechanism perhaps, since there are already technologies which tell you when your cellphone or ipod is low on battery power? Or make it a bunch of mini-batteries linked in series like when you insert several AAA's in a device.

(I'm just speculating here, not knowing the specific technologies...I may just be talking through my nanotube or showing that I have a lot of buckyballs.)

Post 5

Friday, December 21, 2007 - 4:57pmSanction this postReply
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I may just be talking through my nanotube or showing that I have a lot of buckyballs.)

Either way, ye sounding slippery, Phil....[snort]


Post 6

Saturday, December 22, 2007 - 3:50pmSanction this postReply
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I would certainly be in the market for a reasonably priced long-range electric motorcycle.  My ancient ('85) Honda 650 Nighthawk runs ok and is quite reliable, but gets only 33mpg city or 45mpg highway.  Other possibilities for the new batteries would be personal heaters and coolers for clothing, using thermocouples combined perhaps with piezoelectric micro-fans embedded in fabric.  With such a system, hot areas of a suit would automatically cool themselves, while cold areas would simultaneously warm.  An unrelated  but synergistic technology might be the new magnetic induction systems that employ tuned electromagnetic resonance to efficiently tranmit power to nearby devices such as charging systems.  From up to ten feet away, the new breakthru systems can induce a resonance in tuned receivers, similar to what Tesla did way back when.

In 1993 I had an article published in Amiga User International on the possibilities of such systems if used in conjunction with embedded ID chips.  Everything sold would have such a chip, which would render the item virtually unstealable, for one thing, thus undercutting criminal activity drastically.  In addition, however, the owner could instantly call up the online links to the ID, accessing information in depth about the operation, capabilities, safety, point of origin, etc. 

Vernor Vinge, in his marvelous "Rainbows End," which got the 2007 Hugo Award for best SF novel, depicts a society in which everyone "wears," meaning that they typically have contact lenses that display overlays on whatever is in their visual field, meaning that you see people as they want you to see them (your boyfriend sees you wearing one thing (or nothing...), while your boss sees you in a conservative business suit.).  (He also used MY story idea for a totally virtual character - altho I suspect that he came up with it independently.)  However, you've got to have a way to link what is actually there to the other information and then synchronize the two in 3D for it to work the way that Vinge and I each projected.  Breakthrus such as the tuned resonance transmission and very high capacity batteries are essential steps to getting there.


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Post 7

Friday, March 28, 2008 - 1:01pmSanction this postReply
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Addendum to Post #1

Replacing petroleum with sugars as source for 5-hydroxymethylfurfural used in fuel, polyester, and industrial chemicals:

 http://www.pnl.gov/news/release.asp?id=255


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Post 8

Thursday, June 26, 2008 - 4:58amSanction this postReply
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Update to Post #1

 

Electric Car Progress - The News Hour

 

RICK WAGONER (GM Ceo): “We've watched with admiration as to what Tesla is doing. It's fine if you're making 1,000 or 2,000 of an electric car, but it's not going to have a big dent in oil consumption in the country or CO-2 emissions. What's going to have a big dent is if you can do 100,000, 200,000, 500,000, a million units.

. . .

“We had about 100 years of an auto industry in which 98 percent of the energy to power the vehicles has come from oil. We're really going to change that over the next time period, things like battery development and applying batteries to cars, as we're planning on doing with the Volt, is an important step, kind of, in the next 100 years of the auto industry.”

 

GM Volt - Reuters

 

GM Volt - The Seattle Times

 

“Cambridge Energy Research Associates (CERA), a prominent Boston consultancy, estimates that if the entire U.S. vehicle fleet suddenly became electric, gas consumption would drop 70 percent, and electric-power consumption would jump about 17 percent.

“‘It's not that big a hit for the electric-power industry’, said CERA consultant Patricia DiOrio.”

. . .

Robert Lutz, GM's vice chairman and head of product development, said “‘If the U.S. is going to electrify its car fleet in a clean manner, without burning much more coal, windmills and solar farms are not enough’.

“‘The only real option is nuclear energy’, he said. However, not a single nuclear plant has been built in the U.S. in decades.”

 

~~~~~~~~~~~~~~~

 

I helped to build the last US nuke. I’m pleased to say it is still putting megawatts on the grid 20 years later.

 

By the way, the diesel-electric locomotives of Dagny fame have their axels turned by electric traction motors, which is what moves the GM Volt.

(Edited by Stephen Boydstun on 6/26, 5:27am)


Post 9

Friday, June 27, 2008 - 10:07pmSanction this postReply
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At my work, the management is trying to determine whether lithium batteries are "worth it" (whether the multiplication in cost is met or exceeded by the multiplication in battery endurance).

Does anybody know the answer?

Ed


Post 10

Saturday, June 28, 2008 - 5:39amSanction this postReply
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Ed, whats the application? Cell phones or cars or what?

If we were living in a free market and batteries were better, then battery-electric motor cars would be more prevalent. They are not, gasoline has a higher energy density and total cost is cheaper. If gasoline prices continue to increase, then that will make batteries more and more economically worthwhile.

Post 11

Saturday, June 28, 2008 - 10:16amSanction this postReply
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Dean,

The application is simply as the power source for small electronics such as a digital camera (using "AA" batteries).

Ed


Post 12

Saturday, June 28, 2008 - 1:00pmSanction this postReply
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The question isn't entirely about energy density. You could have a car battery with less energy density than gasoline and still have it be more commercially viable. The main constraints are total operating cost, range of the car, performance, and the ability to refuel conveniently. If the cost of a given amount of useable electrical energy is much less than the same amount of useable gasoline energy, and the other constraints can be made at least somewhat competitive with gasoline energy, then many consumers will switch over.

For example, if the weight of 200 or so miles worth of gasoline plus the engine and drivetrain is hundreds of pounds lighter than the weight of batteries and an electric motor plus drivetrain, but the cost of the electrical energy is half that of gasoline, it would still be more economical to have a battery-powered car despite the loss in efficiency caused by the extra weight. And, in highway driving at a steady speed, weight matters less than aerodynamics and frontal area, since you're not using energy to constantly accelerate the extra mass and then losing that energy when braking. as occurs in city driving. Basically, if you take your car and add hundreds of pounds of sandbags to the trunk, it will harm your mileage in stop and go driving, but other than a bit of extra rolling resistence it will have hardly any effect on mileage if you're using cruise control on a level highway to maintain a constant speed, since the biggest energy drain at freeway speeds is from wind resistance.

With electrical energy, you can take advantage of cheaper and more efficient means of energy generation than a gasoline-fueled internal combustion engine, and if the power plant is sufficiently remote, you can export the air pollution to less densely populated areas.


Post 13

Saturday, June 28, 2008 - 5:44pmSanction this postReply
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Ed,

I bet NiMh and LiIon kick Alkaline's butt by maybe being 100 times cheaper over the long term. LiIon beats NiMh not so much by price but by more energy per weight & volume. They are pretty close in price. And NiCd is old technology that I'd not recommend.

Post 14

Saturday, June 28, 2008 - 10:22pmSanction this postReply
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Thanks, Dean!

Ed


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Post 15

Tuesday, November 4, 2008 - 4:58amSanction this postReply
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Another advance in transportation energy (following on #1, #7, #8):

 

More Combustion for Engines with Fuel Injectors

Science News10/25/08


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Post 16

Saturday, November 29, 2008 - 7:42amSanction this postReply
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“Frontiers of Advanced Battery Research” – M. Stanley Whittingham

        from the GE Battery Technology Symposium of October 2008

        (Ah/kg)

 

 

“Materials Challenges Facing Electrical Energy Storage” – M. Stanley Whittingham

         from the Materials Research Society Bulletin of April 2008


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Post 17

Wednesday, January 28, 2009 - 10:31amSanction this postReply
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Cadillac Converj

(Edited by Stephen Boydstun on 1/28, 10:32am)


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Post 18

Thursday, April 2, 2009 - 8:19amSanction this postReply
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Electricity from Nuclear Waste


Post 19

Saturday, April 11, 2009 - 12:03pmSanction this postReply
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Numerous proposed US nuclear power plants are now in NRC review.

Map / List



(Edited by Stephen Boydstun on 4/11, 10:15pm)


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