For both leasing and battery swap to be practical, you don't need to have all manufacturers adhere to a common standard (though that would be nice), but a major manufacturer such as Tesla could have their on swap stations that serve their own type of vehicles.
On Thu, Mar 12, 2015 at 5:44 PM, EVDL Administrator via EV < [email protected]> wrote: > As I see it, the model for successful battery exchange in EVs is the lowly > flashlight (torch). The cells come in 4 basic sizes, with two of these > most > commonly used (AA and D). Effectively, you have 2 or maybe 4 tiers of > energy content and power capacity; then, within each tier, you use more > cells to get more of both. > > To make battery exchange work with EVs, you'd have to get all the EV > manufacturers to agree on one or two standard module sizes. They'd need > standardized connections that mate as the battery is installed, just as > flashlight battery connections do. You'd have different capacities > (through > different chemistries) in a given module size, and also vary the capacity > by > the number of modules the EV used. > > For affordability and convenience, you'd have to fully automate the > exchange > process. The driver would pull into the exchange bay, pay the operator, > wait a couple of minutes, and drive out with a freshly charged battery. > Most likely the modules would have to attach from the bottom, with > hydraulic > lifts and conveyors doing the work. You could have one pit to remove the > spent battery, and another to raise a fresh one into place. The EV would be > moved from one pit to the next on tracks. You should be able to exchange > an > EV's battery even faster than a gas pump can fill an ICEV's tank. > > This model might have worked IF all the EV manufacturers could have agreed > on it from the start. But making that happen would have been a huge > challenge, and now it's just about impossible. Then, building all the > exchange stations would require a stupendous investment. > > All this is pretty daunting. Just ask Shai Agassi. > > So, I wouldn't say that battery exchange is a stupid idea, but I'm afraid > it's not a very practical one. > > David Roden - Akron, Ohio, USA > EVDL Administrator > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > EVDL Information: http://www.evdl.org/help/ > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > Note: mail sent to "evpost" and "etpost" addresses will not > reach me. To send a private message, please obtain my > email address from the webpage http://www.evdl.org/help/ . > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > _______________________________________________ > 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) > > -- Larry Gales -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150313/ec1137a7/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)
