New Lithium Iron Battery

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=3 height=90 BGCOLOR="#6666CC" TEXT="#080000" background="b8e01573.jpg"> <div> <FONT SIZE="5" COLOR="#FFFFFF" FACE="Arial" ><B>Googlegrease</B></FONT>     |     <A HREF="index.htm" TARGET="_top" TITLE="Googlegrease">home</A>                  back to  <A HREF="news.htm" TARGET="_top" TITLE="News">News</A></div> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="alaska_china_railroad.htm" TARGET="_top" TITLE="Alaska China Railroad">Alaska China Railroad</A><FONT SIZE="2" COLOR="#FFFFFF" FACE="Symbol" >   ·   </FONT><A HREF="alaska_texas_railroad.htm" TARGET="_top" TITLE="Alaska Texas Railroad">Alaska Texas Railroad</A><FONT SIZE="2" COLOR="#FFFFFF" FACE="Symbol" >   ·   </FONT><A HREF="ny_la_highspeed_rail.htm" TARGET="_top" TITLE="NY LA Highspeed Rail">NY LA Highspeed Rail</A><FONT SIZE="2" COLOR="#FFFFFF" FACE="Symbol" >   ·   </FONT><A 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lithium battery technology</A></FONT> might mean rapid charging and discharging times that take just seconds instead of the minutes or hours we're used to. </div> <bR> <div> Years ago, scientists thought that the reason why lithium-ion batteries have slow charging and discharging times is because the ions travel across the battery slowly. But that wasn't the case at all; in fact, various tests reveal that the ions are shuttled across the battery very quickly. </div> <bR> <div> The real reason why charging and discharging times are slow, is that the ions can only travel through tunnels accessed from the surface. Only ions positioned immediately at the entrance of the tunnels can be shuttled across. The answer then to the slow charge/discharge cycle is to design a new surface more conducive to traveling. </div> <bR> <div> Ceder and Byoungwoo Kang from <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="/topic/0,2944,t=Massachusetts Institute of Technology&s=1489,00.asp" TARGET="_top" TITLE="/topic/0,2944,t=Massachusetts Institute ">MIT</A></FONT> addressed the need for the new surface by designing some sort of a beltway that takes the ions directly to tunnels for faster traveling. According to MIT, the new material tested could be charged AND discharged within just 10 to 20 seconds as opposed to the usual six minutes the current material of the same volume would take. </div> <bR> <div> The new battery <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="l " TARGET="_top" TITLE="l ">technology</A></FONT> is an upgraded version of the current lithium iron phosphate battery as opposed to lithium cobalt because the former is not prone to overheating. Moreover, the new technology does not lose charging capacity as time goes by, allowing for the development of smaller and lighter products.</div> <bR> <div> Production of this <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="http://news.bbc.co.uk/1/hi/sci/tech/7938001.stm" TARGET="_top" TITLE="http://news.bbc.co.uk/1/hi/sci/tech/7938">new battery</A></FONT> does not stray far from the current process, so Ceder believes it would take only two to three years to get the new technology in the market. </div> <div> Originally posted to <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.goodcleantech.com" TARGET="_top" TITLE="http://www.goodcleantech.com">GoodCleanTech.com</A></FONT></div> <bR> <div> Engineers at MIT have made a breakthrough that could translate into smaller, lighter, and faster-charging lithium ion batteries, the Massachusetts Institute of Technology announced Wednesday.</div> <bR> <div> Gerbrand Ceder, the Richard P. Simmons Professor of Materials Science and Engineering at MIT; aided by Byoungwoo Kang, a graduate student in materials science and engineering, have made a small battery that can be fully charged or discharged in 10 to 20 seconds.</div> <bR> <div> A detailed explanation on how they did this has been published in the <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" >March 12 issue of Nature</FONT>, but here is a brief recap of what they essentially accomplished.</div> <div> While lithium ion batteries have high energy densities, they are also known for their inability to gain and discharge energy quickly. That is why it commonly takes hours to recharge the battery on a plug-in electric vehicle.</div> <bR> <div> Electric vehicle proponents have been struggling with this battery issue, some coming up with clever ways around it.</div> <bR> <div> <FONT SIZE="2" COLOR="#0000FF" FACE="Arial" >Better Place</FONT>, for example, came up with the idea of drivers saving time by swapping-out discharged car batteries for fully charged ones at electric vehicle stations.</div> <bR> <div> Ceder and Kang experimented with the way lithium ions move in and around lithium iron phosphate, a material commonly used in lithium ion batteries. They worked with it to develop a new surface structure that gets ions to move more quickly from one place to another.</div> <bR> <div> They compare their project to building a beltway that goes around a city to avoid traffic, but has tunnels that let you drop in to exactly where you need to be.</div> <bR> <div> "The ability to charge and discharge batteries in a matter of seconds rather than hours may open up new technological applications and induce lifestyle changes," according to Ceder and Kang's paper in Nature.</div> <bR> <div> In addition to being significantly faster, batteries made with their material degraded much less than usual lithium ion batteries after repeated discharges and recharges during testing. Because of that, they believe their batteries could be made with less material making them lighter and smaller.</div> <bR> <div> Because their invention is not a completely new material, but rather a change to the way it's structured, the researchers said in a statement that their material could be implemented into commercial batteries within 2 to 3 years.</div> <bR> </td> <td valign="top" width=210 BGCOLOR="#EEEEEE" TEXT="#080000"> <div> <B>A Public Service of</B></div> <div> <A HREF="http://www.radiozx.com/" TARGET="_top" TITLE="http://www.radiozx.com/"><B><IMG SRC="bd259290.png" border=0 width="89" height="41" ALT="radiozx logo" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A></div> <div> <B>Hot Headlines...</B></div> <div> <B><IMG SRC="bd323230.png" border=0 width="35" height="35" ALT="newspaper Hot Headlines" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"><IMG SRC="bd46a240.png" border=0 width="106" height="36" ALT="lizard running" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>for people on the Run!</B></div> <div> <A HREF="http://www.googlegrease.com/" TARGET="_top" TITLE="http://www.googlegrease.com/"><B><IMG SRC="8ada5510.jpg" border=0 width="165" height="81" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A></div> <bR> </td> </tr></table></body>