It is worth noting that the batteries referenced here are not the batteries used in any EV. They are talking about lithium metal electrodes which are not suitable at all for typical secondary battery applications and so it has nothing to do with reducing range anxiety.
On Sat, Jun 18, 2016 at 3:22 AM, brucedp5 via EV <[email protected]> wrote: > [ref > > http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Battery-salt-bath-to-increase-EV-pack-range-td4682652.html > ] > > http://www.gizmag.com/battery-electrode-lithium-salt-csiro-qut-rmit/43825/ > A salty battery bath to combat EV range anxiety > June 14, 2016 Colin Jeffrey > > [images > > http://img-2.gizmag.com/salt-bath-electrodes-3.jpg?auto=format%2Ccompress&ch=Width%2CDPR&fit=crop&h=394&q=60&rect=0%2C88%2C1622%2C913&w=700&s=1d425dd0798d6588ecf91ef2021c0c1b > Scientists from the CSIRO, working jointly with researchers from RMIT > University and QUT, have created a salt bath pre-process that promises to > vastly improve lithium-based battery life and performance (Credit: CSIRO) > > > http://img.gizmag.com/salt-bath-electrodes-2.jpg?auto=format%2Ccompress&ch=Width%2CDPR&fit=max&h=700&q=60&w=700&s=64937f844f66deecd7f0a4cdd4ed9236 > ] > > The degradation of electrodes in lithium-based batteries has been a major > inhibitor to their operating life, particularly when dendrites "growing" > from these corroding electrodes short-circuit in the electrolyte. > Australian > researchers have found that pre-treating lithium electrodes in a special > salt bath decreases the breakdown of the electrodes and boosts performance > and battery life so markedly it could bring an end to range anxiety for > drivers of electric vehicles. > > Scientists from the CSIRO, working jointly with researchers from RMIT > University and the Queensland University of Technology (QUT), claim that > their pre-treating technique is so efficient that even after 1,000 > charge/discharge cycles, their prototype retains greater than 99.5 percent > Coulombic efficiency, which is a measure of the difference between the > incoming and outgoing charges in a battery as it cycles through charging. > > The researchers believe that their new process will help bring on the > development of super-efficient energy storage methods that will completely > negate battery range anxiety that is a major impediment for the electric > car > industry today. > > "Our research has shown by pre-treating lithium metal electrodes, we can > create batteries with charge efficiency that greatly exceeds standard > lithium batteries," said CSIRO battery researcher Dr Adam Best. "The > pre-treatment reduces the breakdown of electrolytes during operation, which > is what determines the battery's increased performance and lifetime." > > By immersing lithium metal electrodes in an electrolyte bath containing a > mixture of the lithium salts Lithium bis(fluorosulfonyl)imide (LiFSI) and > lithium hexafluorophosphate (LiPF6) and the ionic liquid > 1-Methyl-1-propylpyrrolidinium chloride (C3mpyr), the pre-treatment covers > the surface of the electrode with a protective film that is so efficient > that even after more than 2,500 hours of battery cycling, no evidence of > any > dendrite formation was found. > > Whilst a myriad other methods have been researched on eliminating dendrite > formation from the degradation of lithium battery electrodes, including > coating them with carbon nanospheres and changing the composition of the > electrolyte in which they are immersed, this latest technology has shown > the > largest number of charge/discharge cyclic efficiency with absolutely no > dendrite formation visible. > > Other advantages of this process include the ability for treated batteries > to sit on the shelf for up to a year without their performance being > affected, and that the techniques are simple and easy to adopt in current > battery manufacturing methods. > > The CSIRO holds patents to the electrolyte salt solutions, which come in a > variety of different chemical compositions. The research team is now intent > on creating and evolving batteries based on the new process and techniques, > and is currently searching for commercial collaborators to assist in > commercial development of the technology. > [© GIZMAG 2016] > ... > > http://www.csiro.au/en/News/News-releases/2016/Salt-baths-boost-next-gen-batteries-for-electric-cars > Salt baths boost next gen batteries for electric cars > 14 June 2016 > ... > http://www.nature.com/ncomms/2016/160613/ncomms11794/full/ncomms11794.html > Stabilizing lithium metal using ionic liquids for long-lived batteries > 13 June 2016 > > > > > For EVLN EV-newswire posts use: > http://evdl.org/evln/ > > > {brucedp.150m.com} > > -- > View this message in context: > http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Salt-bath-to-increase-EV-battery-pack-range-tp4682654.html > Sent from the Electric Vehicle Discussion List mailing list archive at > Nabble.com. > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- To invent, you need a good imagination and a pile of junk. Thomas A. Edison <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 585-6737 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Mobile and Google Phone [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160618/dadf7b16/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
