Fast-Recharge Batteries

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Taxious
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Fast-Recharge Batteries

Post by Taxious »

Exciting:

http://www.pcworld.com/article/161133/c ... conds.html
In the very near future, we just may see batteries that can recharge in just three seconds. Researchers at MIT (where else?) have discovered a method of recharging lithium ion batteries at greatly increased speeds. The best news is that their method uses common materials and therefore could hit the marketplace in as little as two years.
....
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Klast Brell
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Re: Fast-Recharge Batteries

Post by Klast Brell »

How much heat would that generate?
Recharge in 3 seconds? What size battery? Cell Phone? Laptop?
Lithium Ion batteries go off like a flare if punctured, or if they fail in certain ways. Just look at all the stories of exploding phones and laptops. When you are pumping that much energy in to the battery in that short of a time, what safety features would they need to add?
And the biggest question. How much will they cost?
"A few months ago, I told the American people I did not trade arms for hostages. My heart and best intentions still tell me that's true, but the facts and evidence tell me it is not." - Ronald Reagan 1987
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Taxious
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Re: Fast-Recharge Batteries

Post by Taxious »

Klast Brell wrote:Recharge in 3 seconds? What size battery? Cell Phone? Laptop?
They mentioned in the article that it would mostly revolutionize electric cars. Imagine being able to "fill up" your car battery at a gas station in a couple seconds.

I'm not sure about safety features and all that, but I'm interested to see what they come up with.
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Re: Fast-Recharge Batteries

Post by Embar Angylwrath »

Recharging a bank of batteries large enough to power a car in just a couple of seconds would take a pretty huge power dump. No way our electircal infrastructure could handle those spikes. It would probably have to be handled via a bank of capacitors that could recharge over time.
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Alarius
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Re: Fast-Recharge Batteries

Post by Freecare Spiritwise »

I read the press releases yesterday as well. Looks interesting, but apparently opening up the "ion superhighway" inside these batteries makes them really bulky and ill suited for something like mobile electronics. And yeah, something that discharges that fast does sound kinda scary. I wouldn't want to see what happens when you short the leads on one of those.

When I was a kid, both me and my friend had dads who were executives for electronics companies, and we had access to crates full of components. We used to get some pretty spectacular explosions from various capacitors.

I wonder what happens to one of these new batteries when your electric car is involved in a collision.
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Re: Fast-Recharge Batteries

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Working prototype will be out in 3 years.
Safe prototype will be out in 30 years.
"A few months ago, I told the American people I did not trade arms for hostages. My heart and best intentions still tell me that's true, but the facts and evidence tell me it is not." - Ronald Reagan 1987
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