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Today's Topics:
1. Re: Lockheed Martin signs agreement with EEStor (Bill Dube)
2. Re: crazy super budget EV conversion (Dan Frederiksen)
3. Re: crazy super budget EV conversion (Dan Frederiksen)
4. Re: KillaCycle on Discovery Channel, Canada (Harris, Lawrence)
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Message: 1
Date: Fri, 11 Jan 2008 09:11:39 -0700
From: Bill Dube <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Lockheed Martin signs agreement with EEStor
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
The specific energy of a lead-acid battery is about 30 W/kg. A
battery with 300 W/kg would be much better than any battery presently
on the market.
I know nothing about this new technology, but I would suspect that if
they are calling it a "capacitor" it is likely to have 10x the
"power" of a lead-acid battery as opposed to 10x the "energy" of a
lead-acid battery. Otherwise, they would not be calling it a "capacitor."
Bill Dube'
At 06:26 AM 1/11/2008, you wrote:
>So, the article says:
>
>"Eestor, based in Cedar Park, Tex., is developing a
>ceramic battery or "ultracapacitor" that is expected
>to provide 10 times the energy punch as lead acid
>batteries at one-tenth the weight and for less than
>half the price."
>
>A related article had "weight and volume".
>
>Sounds like we could have an ultracapacitor that
>is 1/10 the weight/size of a single 12 volt battery,
>but at 10 times the energy punch (e.g. 12v at 10x Ah
>rating), if I'm interpreting that correctly.
>So, 10 of them would fit in the size of a single
>battery and give you 100x the energy of a same-size
>lead-acid battery?
>
>All we'd need is a single battery or two
>(size/weight-wise) to run what is typically built now.
> And at half the price?
>
>Sure sounds too good to be true.
>
>
>
>
>
>
>____________________________________________________________________________________
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>http://www.yahoo.com/r/hs
>
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------------------------------
Message: 2
Date: Fri, 11 Jan 2008 17:46:12 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: Re: [EVDL] crazy super budget EV conversion
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I found a few graphs like this:
http://homepages.which.net/~paul.hills/Motors/CurrentTorqueGraph.gif
which is an Iskra 900watt starter motor.
looks like it would be around 1/5 the torque of an ADC 6.7" and with
added inefficiencies it wont be a sprinter but I think that properly
motivated it just might be able to give the illusion of normal car
performance in city driving :)
could be a fun experiment to taunt the ICEs with that the ICE needs an
electric motor to work that could itself drive the car :)
Dan
------------------------------
Message: 3
Date: Fri, 11 Jan 2008 19:23:12 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: Re: [EVDL] crazy super budget EV conversion
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Dale Ulan wrote:
> http://www.newindo.com/delcoremy/images/delco%20remy%20starter%2050MT-24V_pc_sm.jpg
> That is a monster starter motor, designed for 20L+ engines!!!
>
that is indeed a monster
> Maximum duty cycle will kill it. It'll smoke after a mile or
> two if not before that.
yes without a controller and in 5th gear perhaps. but how long would an
ADC6.7" last in 5th gear directly fed 300 lithium volts...
the controller is there to regulate so it doesn't burn up
I didn't say it would be elegant nor fast nor last a long time. but I
think it could actually work
Dan
ps. a correction. it's more like 1/10 the torque profile compared to an
ADC6.7, rather than previously stated 1/5. but it might be able to take
more current than previously assumed. maybe 200A continuous
------------------------------
Message: 4
Date: Fri, 11 Jan 2008 10:53:35 -0800
From: "Harris, Lawrence" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] KillaCycle on Discovery Channel, Canada
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="US-ASCII"
I'll keep an eye out for it but I think it already ran and I may have a
copy. I was flipping channels and saw the Killacycle referenced in the
intro an I think I got it recorded. I'll take a look and let you know.
Lawrence
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bill Dube
Sent: Thursday, January 10, 2008 5:53 PM
To: Electric Vehicle Discussion List
Subject: [EVDL] KillaCycle on Discovery Channel, Canada
The KillaCycle is scheduled to appear in the first episode of "Mean
Green Machines" airing on the Canadian Discovery Channel January 21st
at 9:30 p.m. ET/PT
Here is the Canadian Discovery Channel schedule:
http://www.discoverychannel.ca/schedule/default.aspx?timezone=EST&startd
ate=1/21/2008
Here is a description of the show and the episode:
http://ctvmedia.ca/discovery/releases/release.asp?id=9965&yyyy=2007
The folks that filmed this seemed really professional and very
creative, and the shoot was a lot of fun, so I suspect that the show
will be pretty darned good.
As part of this show, we made two, back-to-back passes without
recharging, to demonstrate just how amazing the A123Systems
Nanophosphate cells really are. (We can, in theory, do more than 10
runs without recharging, but we have never tried it.) The bike
actually went FASTER on the second run. (163 mph.) This shoot was
back in September, and we broke our own ET record AND MPH record on
those back-to-back runs.
Unlike other battery technologies, the voltage and internal
resistance of the A123Systems Nanophosphate cells really doesn't
change significantly over ~90% of the discharge. The voltage and the
power output stay the same until the battery runs out. Completely
unlike any other battery technology I have ever heard of!
Since we won't be getting this show quite yet down South in the
USA,
could someone record it and burn us a DVD?
Bill Dube'
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End of EV Digest, Vol 6, Issue 36
*********************************
