it's all physics On Wed, Jun 24, 2015 at 9:11 AM, Paul Dove via EV <[email protected]> wrote:
> A battery is chemical not electrical > > Sent from my iPhone > > > On Jun 24, 2015, at 9:31 AM, Lee Hart via EV <[email protected]> wrote: > > > > Roger Stockton via EV wrote: > >> I think that it is possible that people are confusing *theoretical* cell > >> chemistry with that of *practical* cells. > > > > I think that is exactly the case. > > > > In theory, theory and practice are the same. > > In practice, they are not. -- Albert Einstein > > > > Of course there is an electric field inside a battery. Without an > electric field, there would be no voltage, and you wouldn't have a battery. > By definition, an electric field exists whenever there is a voltage > difference between two points. The electric field provides the force that > moves electrons and ions (polarized molecules) between plus and minus sides > of the cell. These charges *will* find a way to leak. > > > > An analogy: The designers may *think* their wonderful new concrete dam > doesn't leak a drop. But the tourist notices that the walls of the canyon > below it are wet, and the farmer notices the change in ground water at his > wells. The pressure is there, and the water *will* find ways around the > dam, whether you like it or not. > > > > The important *practical* consideration is whether this leakage matters, > or not. In a pacemaker, an ultra-low self-discharge rate is important (so > they don't have to cut you open every few years to replace the battery)! In > an EV that you can plug in any time you like, it's not very important. > > > > So, can we go back to discussing the practical aspects of EVs now? > > -- > > The greatest pleasure in life is to create something that wasn't > > there before. -- Roy Spence > > -- > > Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com > > _______________________________________________ > > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- www.electric-lemon.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150624/b3202c0b/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
