I have received several references to research on nanotube
ultracapacitors at MIT. The latest was a link to the following article,
which then linked to the MIT poster (next link). The poster talks about
specific power of >100 kW/kg, specific energy of >60 Wh/kg, and cycle
life of >300k cycles, all with standard production techniques! At the
right price, these could eventually replace PHEV batteries, with nearly
100% cycle efficiency and longevity far beyond that of most vehicles.

Article: http://www.gizmag.com/go/5192/

MIT poster: http://lees.mit.edu/lees/posters/RU13_signorelli.pdf

I believe no devices have actually been built yet, only an electrode has
been built (and tested?). The definitive paper about the work "was
presented at the 15th International Seminar on Double Layer Capacitors
and Hybrid Energy Storage Devices in Deerfield Beach, Fla., in December
2005." Does anyone have access to this paper (the proceedings are
available for purchase for $250 at
http://www.supercapseminar.com/Secure/Proceedings%20Order%20Data.htm)?

Also, if anyone has a copy of the following proceedings from the 2005
Advanced Automotive Battery Conference that they would be willing to
loan me, I would like to peruse a few articles in each (available at
https://secure.voloservices.com/%7eautobat/order.html):

2005 AABC Poster Presentations ($150)
2005 LLIBTA (Large Lithium Ion Battery Technology and Application
Symposium) ($225)

Thanks,
/ron

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Ron Gremban, rgremban@...
California Cars Initiative, a nonprofit organization:
http://www.CalCars.org
Moderator & Technical Lead
http://www.priusplus.org
PRIUS+ PHEV Conversion Group: http://groups.yahoo.com/group/priusplus
Newsletter: http://groups.yahoo.com/group/calcars-news
Do-it-yourself PHEVs: http://www.seattleeva.org/wiki/EAA-PHEV
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