Round cells will not swell, so they can eexpected to work better and longer.
Jerry Jukka Järvinen <[email protected]>编写： >Simply because the cell casings is made just enough thick to keep all stuff >inside. The additional mechanics just compensate that. These cells do not >have vacuum inside. I've seen pouch cells installed in the pastic >enclosure. Those should get away with loose installation. > >Would you like to have 200% more plastic around every cell while they are >installed anyway in tight space? > >Depending on cells electrode materials they can swell if in Lithium-poor or >Lithium-rich state. > >EOC voltages change since cells keep changing (improving?). They try out >all kind of things. There's even chemical overcharge inhibitors nowadays. >So you can 'balance' by overcharging. > >Only few (manufacturers) seem to understand that keeping the production in >predictable state helps the sales. Go figure! > >-Jukka > > >http://www.google.com/profiles/jarviju#about > > >2013/4/23 David Nelson <[email protected]> > >> Those same manufacturers also keep changing the parameters on what >> constitutes a full charge of their cells. They keep lowering the ending >> voltage. That tells me that we are their beta testers and they really don't >> know. Just saying... >> >> >> On Mon, Apr 22, 2013 at 4:01 PM, Bill Dube <[email protected]> >> wrote: >> >> > The manufacturer instructs you to band the cells. They even sell plates >> > and parts specifically for doing so. >> > I suspect that if it were not necessary, they would not instruct you to >> do >> > so. >> > Just saying... >> > >> > Bill D. >> > >> > >> > ______________________________**_________________ >> > UNSUBSCRIBE: http://www.evdl.org/help/**index.html#usub< >> http://www.evdl.org/help/index.html#usub> >> > http://lists.evdl.org/**listinfo.cgi/ev-evdl.org< >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org> >> > For EV drag racing discussion, please use NEDRA ( >> http://groups.yahoo.com/* >> > *group/NEDRA <http://groups.yahoo.com/group/NEDRA>) >> > >> > >> >> >> -- >> David D. Nelson >> http://evalbum.com/1328 >> http://www.levforum.com >> >> Nokia Lumia 920 Windows Phone 8 >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130422/7a687e56/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) >> >> >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: ><http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130423/a187860b/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) > _______________________________________________ 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)
