On 23 Sep 2002 at 18:33, Lonnie Borntreger wrote: > So, back to my original question, how does this rating look compared to > current EV batteries in use?
Hmm. I guess I spent so much time whining about the typos that I distracted everybody from the answer to that question, which ~was~ in the post (at least for lead and nicads). Here are typical specific energies for various chemistries. The ones for lead and nicad are by my calculation from various examples and some folks here may know of exceptions. Still, I'm fairly confident that they represent practical capacity at real world EV currents (75~100 amps). The other figures are from my rather disorganized notes and I don't know their origins, so take them with a grain of salt. Standard lead acid 25-30 Wh/kg Advanced lead acid 30-36 Wh/kg Standard nicad 25-40 Wh/kg Advanced nicad 50-55 Wh/kg NiMH 65-85 Wh/kg (Ovonics claims 90 for some) Lithium Ion 100-150 Wh/kg (AES claims 120) Lithium Polymer 150-200 Wh/kg (Electrovaya claims over 200) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Want to unsubscribe, stop the EV list mail while you're on vacation, or switch to digest mode? See http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = David Roden - Akron, Ohio, USA 1991 Solectria Force 144vac 1991 Ford Escort Green/EV 128vdc 1970 GE Elec-trak E15 36vdc 1974 Avco New Idea rider 36vdc = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Thou shalt not send me any thing which says unto thee, "send this to all thou knowest." Neither shalt thou send me any spam, lest I smite thee. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
