Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Follow-up to multiple stages

DaChesserCat (594136) writes | about 10 years ago

User Journal 0

In a follow-up to my previous journal entry titled "Multiple Stages," I'd like to add the following link:

Finn EV Tech

In a follow-up to my previous journal entry titled "Multiple Stages," I'd like to add the following link:

Finn EV Tech

I mentioned the fact that you'd be best served by batteries AND supercapacitors. Well, these guys are producing something they call the "powerpak," which is a lithium battery with an integrated supercap. The result is something which is part main store and L1 power cache. It can dump high power until the supercap is drained, then dump a more normal amount of power from the battery. The result: high energy density AND high power density. A few of these, and I could probably make a freeway-capable electric motorcycle.

Oh, and let's not forget these guys. Want a hub-motor for your vehicle, so you can do away with the transmission, differential and drive shaft? No problem; the largest one the make, at the moment, is about 14 kW (about 19 hp), but if you put one in each wheel, you've got nearly 80 hp STRAIGHT TO THE WHEELS! That should sufficient to make some little two-door putt-putt get up and hustle. And, since you eliminate a large part of the complexity (and friction), you improve the miles-per-kilowatt-hour, which mean 20 kWh of batteries will take you even further.

Getting VERY close to being able to make my own, practical, BEV.

cancel ×


Sorry! There are no comments related to the filter you selected.

Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>