fuel cell, or lithium battery, cost/range. - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 05-16-2007, 09:46 PM   #1
Registered Member
 
GasSavers_Ryland's Avatar
 
Join Date: Mar 2006
Posts: 1,325
Country: United States
Send a message via AIM to GasSavers_Ryland
fuel cell, or lithium battery, cost/range.

I was listening to public radio today to a guy talk about driving a fuel cell vehicle that had a 300 mile range, and I got to thinking about how it's estamated that a fuel cell in a car will last around 25,000 miles, and I think a cost of $10,000 to replace it, of course that number was from a number of years ago, but they also pointed out that there is something like only enough platum on earth to made fuel cells for 1/5 of the vehicles in the US (and in 25,000 miles they wear out) and that is if the US hords all of the platnum that is thereticaly avalible.
my assuming that $10,000 would buy a fuel cell that could power an electric car, what kind of range could you get from a lithium battery for the same $10,000? and how many miles would it last?
__________________

GasSavers_Ryland is offline   Reply With Quote
Old 05-17-2007, 09:39 AM   #2
Team OPEC Busters!
 
GasSavers_Brock's Avatar
 
Join Date: Oct 2006
Posts: 196
Country: United States
In testing the lithium's are holding up better then NiMH and the NiMH packs have run 100K+ miles in the Rav4 so far.

The kicker to this is a fuel cell vehicle is an electric vehicle that charges the batteries via the fuel cell. Fuel cells are good at making a flat straight line power output. So say it's rated for 5kw, it can't put out more then 5k so you need batteries to handle the peak loads while accelerating and run on batteries alone while stopped and once the batteries are charged the fuel cell can shut off. They act similarly to how the Prius operates.

Fuel cells are about 30-50 % efficient. Let’s say it is a H2 fuel cell. Making H2 from electricity is about 50% efficient and then compressing the H2 for storage eats another 20% using the fuel cell is 50% efficient again or about 15-20% overall. If you took that same power and put it in NiMH or lithium you would have 90% of that energy available to power the vehicle and it would be far cheaper because while you add batteries, you remove the costly fuel cell.
__________________

GasSavers_Brock is offline   Reply With Quote
Old 05-17-2007, 02:52 PM   #3
Registered Member
 
Join Date: Mar 2007
Posts: 1,138
Country: United States
But if the point of the fuel cell is to increase range, it might not be possible to add enough batteries to a car to get to that magical 300 miles (or whatever).
__________________
Bill in Houston is offline   Reply With Quote
Old 05-18-2007, 07:59 PM   #4
Team OPEC Busters!
 
GasSavers_Brock's Avatar
 
Join Date: Oct 2006
Posts: 196
Country: United States
True, very true if you need the range.
GasSavers_Brock is offline   Reply With Quote
Old 05-19-2007, 12:02 AM   #5
Registered Member
 
GasSavers_Ryland's Avatar
 
Join Date: Mar 2006
Posts: 1,325
Country: United States
Send a message via AIM to GasSavers_Ryland
to get a decent range with a fuel cell, you need large tanks of hydrogen as well, and at extream presure (10,000 psi was one quote I heard) and hydrogen is small, so it likes to leak over time.
so my question still stands, for anyone who knows batteries slightly better then I do, what kind of range could you get with $10,000 worth of lithium?
GasSavers_Ryland is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuelly Android App - eehokie Fuelly Web Support and Community News 2 07-14-2010 09:59 PM
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 08:21 PM
All Licensed Drivers terrapin Fuelly Web Support and Community News 0 08-07-2008 10:49 AM
hi SuperRobot46000 Introduce Yourself - New member Welcome 6 07-15-2006 07:44 PM
"active" aero grille slats on 06 civic concept MetroMPG General Fuel Topics 21 01-03-2006 01:02 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 08:42 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.