I think since they have moved away from whatever explosive mix that they were using, the batteries do not last as long anymore. I bought a new phone a couple of months ago and now it holds about 70% of the charge.
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>> Ads by >> Google<http://www.google.com/url?ct=abg&q=https://www.google.com/adsense/support/bin/request.py%3Fcontact%3Dabg_afc%26url%3Dhttp://www.gizmag.com/carbon-nanotube-electrodes-increase-lithium-battery-capacity/15716/%26hl%3Den%26client%3Dca-pub-1607124478120364%26adU%3Dwww.newark.com%26adT%3DCr2025%2BLithium%2BBattery%26adU%3Dwww.XHeli.com%26adT%3D2.4Ghz%2BRC%2BHelicopters%26adU%3DbciPower.com%26adT%3DER251020S%2BLithium%2BBattery%26adU%3Dwww.Sungevity.com/%25240-Down%26adT%3DSolar%2BPanel%2BLeasing%26gl%3DUS&usg=AFQjCNFQ36M0ptSmGDlh3qL-qnltCMs0DQ> >> >> Researchers at MIT have found that using specially treated thin layers of >> carbon nanotubes in batteries can boost the amount of power delivered per >> unit of weight by up to ten times. While the technology still needs >> improving, its full development and large-scale employment would certainly >> revolutionize the way we use any electronic devices, from an iPod to an >> electric car. >> >> The electrode was fabricated with a layer-by-layer technique in which a >> base material is alternately dipped in solutions containing specially >> treated carbon nanotubes to either have a slightly positive or a slightly >> negative charge: when layers of the two kinds are put together, the opposite >> magnetic forces pull the parts tightly together, self-assembling an >> electrode that is porous at the nanometric scale and doesn't seem to >> deteriorate at all as the battery is subjected to over a thousand >> charge-discharge cycles. >> >> The electrodes produced by the team were a few microns thick, making the >> technology potentially useful for small portable electronics. With time, the >> researchers hope to be able to develop much thicker electrodes that could be >> used for more power-demanding applications like electric cars. >> >> The news is an important step building on the findings made by Stanford >> researchers regarding silicon nanotube >> electrodes<http://www.gizmag.com/silicon-nanotubes/12947/>not too long ago, >> and looks particularly promising. However, before we start >> daydreaming about a Tesla Roadster that can go up to 2,400 miles between >> charges, a couple of problems still need to be tackled. >> >> The first issue is that, while there isn't a real limit on the potential >> thickness of the electrode, the time that it would take to actually build a >> powerful electrode from layers only a few nanometers thick would be >> substantial, to the point where the process would simply become impractical. >> The researchers are making some steps toward solving this issue by advancing >> a new manufacturing strategy that would involve spraying the layers with a >> conductive solution rather than dipping them, which could speed up the >> process by up to 100 times. >> >> But perhaps the major hurdle to the widespread use of this technology is >> the scarce availability of carbon nanotubes. A >> number<http://www.cnanotechnology.com/en/cnano.html> of >> companies <http://www.nano-lab.com/winner-of-nanotube-production.html>have >> been working on this issue for some time, but there is no telling when >> truly affordable and high-quality carbon nanotubes might become a reality. >> >> The MIT <http://web.mit.edu/> team's findings were reported in a >> paper<http://www.nature.com/nnano/journal/v5/n7/abs/nnano.2010.116.html>published >> in the journal >> *Nature Technology*. The research was funded by Dupont-MIT Alliance, >> Office of Naval Research and the MRSEC Program of the National Science >> Foundation. >> >> >> -- >> Celebrating 10 years of bringing diversity to perversity! >> Mahogany at: >> http://groups.yahoo.com/group/mahogany_pleasures_of_darkness/ >> >> > > > -- > "If all the world's a stage and we are merely players, who the bloody hell > wrote the script?" -- Charles E Grant > > http://www.youtube.com/watch?v=fQUxw9aUVik > > > -- Celebrating 10 years of bringing diversity to perversity! Mahogany at: http://groups.yahoo.com/group/mahogany_pleasures_of_darkness/
