Date: Mon, 29 Jun 2009 06:17:53 -0700
Reply-To: Don Hanson <dhanson928@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Don Hanson <dhanson928@GMAIL.COM>
Subject: Re: New battery chemistries to watch for
In-Reply-To: <42219.37549.qm@web45303.mail.sp1.yahoo.com>
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I wonder what the owners of Prii (is that the plural of Prius?) are thinking
about all the "new" battery tech? Aren't the batteries in a Prius or any of
the electric hybrids pretty darned expensive right now? Replacing or
Upgrading their vehicle's power storage source could be a significant
expense for them. Of course, they'll probably be expected to just replace
the whole vehicle rather than upgrade their existing cars...There's probably
an automaker's lobby working already to make it un-lawful, somehow, to
replace the battery in your Prius with a better one...
The film "Who killed the Electric Car" had a segment about new battery
technology. It seems a battery technology that vastly improved storgage
batteries has been around for a while but was bought up for corporate profit
reasons and shelved, along with the electric cars of a few years ago..
Maybe all that is coming back out again.
http://video.google.com/videosearch?sourceid=navclient&rlz=1T4GFRD_enUS304US305&q=who+killed+the+electric+car&um=1&ie=UTF-8&ei=m71ISq3MLpKOsgPU4cSQAQ&sa=X&oi=video_result_group&ct=title&resnum=282495457
#
Jeeze! That looks like it may be hard to 'click on' for a trailer on that
documentary film "Who Killed the Electric Car"..Maybe just Google that title
if you are interested in learning a little more about how the US Auto
Industry works/worked?
Don Hanson
On Sun, Jun 28, 2009 at 8:54 AM, Poppie Jagersand <poppie.jagersand@yahoo.ca
> wrote:
> It used to be that LiPO4 batteries was for racing nuts only who shaved
> every ounce off their vehicles. However now it seems like it is coming down
> in price to not much more than an AGM:
>
> 12V, 30Ah, 2000 cycles at 70% DOD $265
> Weight 4kg !!
> http://www.evcomponents.com/ProductDetails.asp?ProductCode=H1230
>
> at 70% this gives 21 usable Ah
> by comparison a Lead Acid deep cycle should not be taken beyond 50%, giving
> the typical group 41 50Ah battery about 25 usable Ah
>
> Comparing the 2000 deep cycles to the typical 200-300 of a Lead Acid
> the LiPO4 battery is actually cheaper over the long run.
>
> Now I'd wouldn't run out and buy one right away. While the cell technology
> is mature by now, there's electronics inside these batteries to control
> charging, discharging currents and maintain cell voltage balance. I'd like
> to see how this electronics hold up in automobile service first. But the
> promise for the future is great. A battery weighing 1/5 of the Lead Acid,
> lasting 10 times longer and not costing much more.
>
>
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