http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/ Engadget Comments for Cornell gurus look to carbon nanotubes for efficient solar cells 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/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 10:30PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 10:40PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://arstechnica.com/old/content/2007/08/scientists-create-paper-thin-flexible-biodegradable-battery.ars]]>Sep 17th 2009 11:03PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 11:47PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
But someday we will!
UT Dallas represent!]]>Sep 17th 2009 11:55PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
Yeah especially because lithium air batteries promise 10x the capacity of lithium ion batteries. Quit spreading uneducated propaganda... Battery tech has a lot of promise over the next 5 years.

Fuel cells are great but they are altogether less efficient than batteries. Take hydrogen for example. Best case scenario from water to hydrogen is 85% efficiency. Then through a fuel cell to electricity is another 15% dip in efficiency. And by the way if we are talking about cars, they still need batteries. Its not like it goes direct from fuel cell to motor. FAIL]]>Sep 18th 2009 1:12AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
Batteries are fine and dandy. They aren't going away and are only going to get better. Batteries have their place and are not going away.

Lithium air batteries. We'll see if they can get to work on a consumer level product and if the technology scales to large devices. However, the problem of lithium is still the scarcity of the material.

Micro-generator. A generator that can fit inside small devices like a cell phone. Plus, even if it does explode an alcohol based device will not explode with the force of lithium batteries.

Fuel cells. There are more than hydrogen fuel cells. These also work with fuels that will not create grossly dangerous explosions. Efficiency isn't much of an issue when the fuel itself can be generated in abundance for cheap.

The future, meaning not tomorrow, or next year, but years down the road. Batteries will likely eventually be replaced in many applications with generators unless there is some fundamental breakthrough in battery technology, (dead end technology is likely too strong of a word).

"Its not like it goes direct from fuel cell to motor." The point here is? I also don't expect the battery in my computer that runs the clock to ever be replaced. Batteries certainly will still have uses but their prevalence (capacity, number, etc.) is likely to take a hit from a variety of emerging technologies in the future.]]>Sep 18th 2009 1:53AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 10:46PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 11:34PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 11:15PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
What does this mean? electrons are creating electrons from energy. If that's the case, this would be big news indeed.
]]>Sep 18th 2009 1:00AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
[a little while later]
OK, so I read the whole paragraph from which the quote is selected. The preceding sentence is important. The excited electrons, it appears, imparts energy to still bound electrons, causing them to be freed, adding to the "current" of electrons already flowing through the nano-tubes. Ah, that makes more sense.]]>Sep 18th 2009 10:50AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 21st 2009 9:05AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 11:42PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 17th 2009 11:56PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/]]>Sep 18th 2009 7:35AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 18th 2009 12:04AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://i34.tinypic.com/2nvcs8z.jpg]]>Sep 18th 2009 4:34PMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
Electrons create more electrons? Isn't this sort of contrary to the first law of conservation of matter? Perpetual motion machine!]]>Sep 18th 2009 12:28AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 18th 2009 1:47AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/
The comic is my proof!

http://questionablecontent.net/view.php?comic=1269]]>Sep 18th 2009 12:31AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 18th 2009 1:25AMhttp://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/http://www.engadget.com/2009/09/17/cornell-gurus-look-to-carbon-nanotubes-for-efficient-solar-cells/Sep 18th 2009 10:22AM