Liberty E-bike - This is a video of a Liberty 48 volt city electric bicycle. (LINK)
This bike appears to be using a "brushed" hub motor. And it appears that brushed motors tend to make a humming sound. Most "brushless" motors seems to be far quieter. (Also, see the Liberty Electric Mountain bicycle) [Cycle Santa Monica (blog)]
This is a thread on the Zappy list about the original manufacturer of the E-Max .. the chinese company that made the E-Max is in business and visible on the Web at http://www.topmotorx.com ... ZAP is planning to import and sell it as the Zapino.
GM has awarded advanced battery development contracts to two suppliers to design and test lithium-ion batteries for use in the Saturn Vue Green Line plug-in hybrid SUV. One contract goes to the recently announced A123Systems-Cobasys partnership, the other to Johnson Controls–Saft Advanced Power Solutions, LLC, a joint venture between Tier 1 automotive supplier Johnson Controls and Saft.
Click her to read the entire article.
Altair Nanotechnologies Inc. has received a $1-million purchase order for NanoSafe 35 kWh lithium-ion battery pack systems from California-based Phoenix Motorcars for delivery in February and March 2007.