Re: [EVDL] Supercapacitors: A New Hero in the Spotlight

2014-11-26 Thread tomw via EV
There was quite a bit of discussion on this several years ago on the old Yahoo Groups Thundersky site and others for the stated reason - to supply drive/absorb regen current spikes. Also research done and papers written on it in the EU. The conclusion was as David said, better to just add more

[EVDL] Supercapacitors: A New Hero in the Spotlight

2014-11-25 Thread len moskowitz via EV
http://www.designnews.com/document.asp?doc_id=275732 ___ 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)

Re: [EVDL] Supercapacitors: A New Hero in the Spotlight

2014-11-25 Thread EVDL Administrator via EV
On 25 Nov 2014 at 11:30, Michael Ross via EV wrote: I heard Elon Musk comment that he thought there might be a possibility that super caps could be at least useful on EVs if not a replacement for battery cells. Years ago Solectria found that by leveling the load on a lead battery, reducing

Re: [EVDL] Supercapacitors: A New Hero in the Spotlight

2014-11-25 Thread Michael Ross via EV
Because supercaps are very lightweight in comparison to additional batteries, the numbers might work out differently than simply adding a battery. But I see the point. Also, by the time supercaps are actually useful they might have gained a lot of weight. All rank speculation. On Tue, Nov 25,

Re: [EVDL] Supercapacitors: A New Hero in the Spotlight

2014-11-25 Thread Ben Goren via EV
On Nov 25, 2014, at 1:13 PM, EVDL Administrator via EV ev@lists.evdl.org wrote: Years ago Solectria found that by leveling the load on a lead battery, reducing its peak current requirements, supercaps / ultracaps could improve an EV's range. Unfortunately, though, it was a little more