T-Pain Is On A Boat: Re: [Electric Boats] AC vs DC motors

Thursday, August 4, 2016

Re: [Electric Boats] AC vs DC motors - new EC cat

Then there is the real issue that makes electric propulsion the more sensible option than regular diesel or petrol.

In about 3 years we wont need either batteries or Gen sets since as we speak first cold-fusion energy modules that will not need charging and last as an energy source for years.

But that will use electricity to move things, having that part already will help.

2016-08-04 14:01 GMT+00:00 king_of_neworleans <no_reply@yahoogroups.com>:

Tesla battery technology is maturing rapidly, I will give you that. The only problem I see on the horizon is with most modern battery technologies, widespread adoption will drive up the cost of raw materials and so the price reductions one would expect from large scale manufacturing and marketing will not make them significantly more economical than they are right now. OTOH and especially on the topic of long battery life, there is one type that outlasts Tesla batteries by a factor of 10 and uses fairly common raw materials. Nickel-Iron, AKA Edison cells. The first electric vehicles to be commercially successful used them. Jay Leno even has one, and the over 100yo batteries still take and hold a charge and will power the car. Edison cells are still used in applications where it is not practical to swap out batteries every 5-10 years such as remote locations. Their only problem is rather lackluster energy density and that the technology seems to be firmly locked down by the Chinese. It would seem that patents would be expired by now lol.

Kveðja – Regards
Stefán B. Jónsson