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mrsocko





Joined: 29 Oct 2006
Posts: 2463
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votes: 8
Location: Southwestern Ontario

PostPosted: Thu Jul 26, 2007 9:34 pm    Post subject: Thoughts on Electric cars Reply with quote

Just watched the movie "Who killed the electric car". I thought it was a splendid piece of liberal propaganda and much more convincing then the Gore movie.

I thought it was kind of a shame that the EV1 and similar cars where all crushed or otherwise destroyed by the big car companies. With new batteries(NIMH) these cars could go 300 miles today on a charge.

Anyone else seen the flick. They made every conservative in the U.S. a villan in killing this technology. True or not.
Mac





Joined: 02 Sep 2006
Posts: 5500
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votes: 35
Location: John Baird's riding...

PostPosted: Thu Jul 26, 2007 11:08 pm    Post subject: Re: Thoughts on Electric cars Reply with quote

mrsocko wrote:
With new batteries(NIMH) these cars could go 300 miles today on a charge.

I haven't seen the flick and, from the sound of things, I won't bother.

Nickel Metal Hydride batteries aren't new, nor are they particularly good for the automotive application. A couple of manufacturers are pushing toward Lithium Ion Polymar batteries (same kind as used in laptops) because of their fast recharge profile, power handling capability and the fact that they don't develop a "memory" like NiMH can.

Give this a read... click!!

-Mac
Craig
Site Admin




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PostPosted: Fri Jul 27, 2007 12:09 am    Post subject: Reply with quote

Sounds pretty good until you have to dispose of 100 million automobile sized poisonous batteries (in addition to the ones already in regular cars).
Mac





Joined: 02 Sep 2006
Posts: 5500
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votes: 35
Location: John Baird's riding...

PostPosted: Fri Jul 27, 2007 12:16 am    Post subject: Reply with quote

Lithium Batteries

Can provide up to 500+ charge cycles
Longest life if only discharged to 80% full
Can charge in as little as 1-2 hours
Can operate in freezing temperatures, but do not like to be charged in freezing temperatures
Cannot be trickle charged
Cannot support high-drain equipment above 100W (for the largest Lithium batteries)
Does not require conditioning maintenance
Self-discharges at approx 10% per month
Store in a cool place at 40% of full charge
Larger battery packs are regulated for air travel, and will not be permitted
Low toxicity, but should be recycled rather than disposed

Nickel Metal Hydride (NiMh) Batteries

Can provide up to 300+ charge cycles
Can charge in as little as 2-4 hours
Can operate in freezing temperatures
Cannot be trickle charged - low tolerance to overcharging
Can support high-drain equipment below 200W (for the largest NiMh battery packs)
Requires periodic conditioning maintenance (every 3 months)
Self-discharges at approx 30% per month
Store in a cool place at 40% of full charge
Not regulated for air travel
Low toxicity, but should be recycled rather than disposed

Sealed Lead Acid (SLA) Batteries

Can provide up to 300+ charge cycles
Can charge in 8-16 hours
Can operate in freezing temperatures
Tolerant of trickle charging & overcharging
No maintenance required
Can support high-drain equipment over 200 watts
Prefers to be cycled above 50% full
Self-discharges at approx 5% per month
Store at room temperature and fully charge
Not regulated for air travel
Toxic materials, and should be recycled rather than disposed

-Mac

edit: I should add I grabbed this off a website and it appears mostly consistent with what I know of the subject... but this appears to deal with single cells, rather than ganged cells like those used in the Tesla.
mrsocko





Joined: 29 Oct 2006
Posts: 2463
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votes: 8
Location: Southwestern Ontario

PostPosted: Thu Aug 09, 2007 9:42 pm    Post subject: Reply with quote

I remember reading a cartoon in Mad magazine when I was a kid that had people eating beans in a car and the methane from their a**es was sucked thru the seat to the engine. This would be a great hybrid idea. Jack Layton would get 100 miles to the gallon easy with all his hot air.
Cool Blue





Joined: 21 Sep 2006
Posts: 3130
Reputation: 114.9
votes: 10
Location: Ontario

PostPosted: Thu Aug 09, 2007 10:43 pm    Post subject: Reply with quote

If you're interested in electric vehicles check out this Canadian company:

http://www.canev.com/

I can't believe the top speed and mileage those retrofit cars get! That's even better than the Chevy Volt proposal!
kwlafayette





Joined: 03 Sep 2006
Posts: 6155
Reputation: 156.2Reputation: 156.2
votes: 28
Location: Saskatoon Saskatchewan

PostPosted: Fri Aug 10, 2007 1:03 am    Post subject: Reply with quote

Just reading an article a day or to ago. The death of the electric car, as they say, has been greatly exaggerated. That little Segway scooter inventor guy, what is his name, he is putting Stirling cycle engines into little electric cars from Norway (Think cars, I think). These engines will apparently meet indoor air quality standards.

What delayed the electric car in the 80s and 90s was the limitations of battery technology, and expense.

http://money.cnn.com/magazines...../index.htm
kwlafayette





Joined: 03 Sep 2006
Posts: 6155
Reputation: 156.2Reputation: 156.2
votes: 28
Location: Saskatoon Saskatchewan

PostPosted: Mon Aug 13, 2007 12:51 pm    Post subject: Reply with quote

Once again, the rumors of teh death of the electric car have been greatly exaggerated.

http://money.cnn.com/2007/08/1.....2007081312

There are enough companies trying electric cars right now that I am thinking that now is the time for the electric car. The Tesla hits the roads this year, the Think people within the next year, these guys by 2009.
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