http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/ Engadget Comments for http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:42AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:46AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 12:24PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:45AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 15th 2009 1:14AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 2:26PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:46AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:47AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 11:14AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:47AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/]]>Mar 12th 2009 9:53AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 9:54AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Seems that
"The electrodes also become a problem because they need to occupy more of the volume of the battery in order to maintain this rate of charge"

umh.]]>Mar 12th 2009 10:11AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:55AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
tell someone that they can fully charge their car battery in less time than it would take them to fill their tank, and they're sold!

]]>Mar 12th 2009 10:06AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Ok, not EVERY day, just on days that you go anywhere.]]>Mar 12th 2009 10:26AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 11:31PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:08AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:13AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:18AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 12:58PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:31AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 10:47AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 11:00PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
Same for "gas stations", as they'd be as convenient as they are today, where people just come in, refuel, and go.]]>Mar 12th 2009 10:57AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
"Gas" stations would keep a massive battery and have it store enough to charge the rough amount of cars it gets every day. Electric signs will say if it has enough power for more customers or not. They'll likely get several large power lines, and pay an appropriately higher rate for the strain their service puts on the grid, which they'll recoup with the cost of a charge.]]>Mar 12th 2009 6:18PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
Can't call that a revolution, can you?

Equation holds that:
quick discharge = very low power density. ]]>Mar 12th 2009 11:13AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
]]>Mar 12th 2009 12:58PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 11:12AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
thats gonna be the dayy]]>Mar 12th 2009 11:52AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/It's gonna need high amperage outlets for everything.]]>Mar 12th 2009 11:53AMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
As for charging, my laptop charges in about 3 hours. 100 times faster would require something like a 250 Amp charger. Seriously, do you want to re-wire your house so you can charge your laptop faster? Will Dell start selling 250 Amp power blocks? No, they won't.]]>Mar 12th 2009 12:56PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
The big issue here, of course, is that the power supplies would be huge and need cooling systems, and the laptop would need a larger charger, as that much power needs a lot of surface area and wire gauge, otherwise it will overheat or short the device. I'd expect something in the middle offered as a fast option (say, 30-40 minute charge on 500 watts) for travelers and a lighter option for office and home use. Or kiosks that provide high wattage DC charges for a fee could open up in public areas, and people could set up their own high wattage DC charging station at home. That home one is actually conceivable. If electric cars that can charge in 10 minutes will exist, standardization will need to happen for DC connectors that transfer a lot of power. Otherwise, we'd need to have Ford charging stations, Toyota charging stations, etc. Laptops and other devices could connect via an adapter to these chargers, and it's likely the home chargers would offer outlets for different levels of DC (12v car adapter, 5v USB, etc) as well as other functions (backup battery for the home, DC-AC inverter to use car battery for power in a blackout or to stabilize the grid over peak hours for a rebate).]]>Mar 12th 2009 6:17PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
--

They've already got the "swell" part down....

http://www.engadget.com/2007/03/21/swollen-batteries-affecting-17-inch-macbook-pros-too/]]>Mar 12th 2009 1:20PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 1:57PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/
http://arstechnica.com/science/news/2009/03/lithium-breakthrough-could-charge-batteries-in-10-seconds.ars]]>Mar 12th 2009 2:37PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 5:08PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 5:52PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 7:30PMhttp://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/http://www.engadget.com/2009/03/12/mits-quick-charging-batteries-could-revolutionize-the-world-ma/Mar 12th 2009 5:57PM