Engineering News Blog

Engineering News

Latest news of interest to engineers. Sourced from GlobalSpec's Engineering News

Previous in Blog: Once Science Fiction, It'll Be Reality in 2014   Next in Blog: CARMAT Bioprosthetic Heart Implanted in First Patient
Close
Close
Close
8 comments
Rate Comments: Nested

Why Do Electric Cars Suffer In Cold Weather?

Posted December 20, 2013 3:40 PM

From ExtremeTech:

Temperatures fall, range falls. You could lose 25% of your good-weather driving range.

Read the whole article

Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Guru

Join Date: Jun 2009
Location: South of Minot North Dakota
Posts: 8376
Good Answers: 775
#1

Re: Why Do Electric Cars Suffer In Cold Weather?

12/20/2013 4:31 PM

So where are the charts for us people who don't see their 25 F bottom end on a good day?

Oh wait never mind. Lithium based battery tech tends to go 100% belly up below 0 F.

Reply
Guru

Join Date: Dec 2007
Location: Haverhill, MA
Posts: 1149
Good Answers: 151
#2
In reply to #1

Re: Why Do Electric Cars Suffer In Cold Weather?

12/20/2013 7:10 PM

Not to worry. The global warming caused by continued use of fossil fuel powered cars will soon have palm trees growing in your North Dakota yard. Then there will be no problem with low temperatures on battery powered cars. Every one can then switch to cars that don't emit CO2, and global warming will stop. Oops, we just triggered a new ice age

__________________
The older I am, the better I used to be
Reply
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#3

Re: Why Do Electric Cars Suffer In Cold Weather?

12/20/2013 7:56 PM

There's an obvious solution to this problem that both of you should have thought of.

Really, battery powered heaters are not new and would cure this nagging problem for almost no investment, compared to the cost of an EV.

LynDoor™Industries DesertBreeze battery sock will warm that cold battery in no time.

Using just 1,000 watts of power per hour to warm the battery, it will allow the battery to provide up to 500 more watts of power per hour to keep your EV purring noiselessly down the road.

Reply
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#4

Re: Why Do Electric Cars Suffer In Cold Weather?

12/20/2013 8:24 PM

Just put a little fuel cell in there.....you get heat and a battery boost....

http://green.autoblog.com/2012/07/02/honda-fit-ev-uses-clarity-fuel-cell-components-to-boost-range/

__________________
All living things seek to control their own destiny....this is the purpose of life
Reply Score 1 for Good Answer
Anonymous Poster #1
#5

Re: Why Do Electric Cars Suffer In Cold Weather?

12/21/2013 12:01 AM

The juice freezes, of course.

Reply
Power-User

Join Date: Jun 2013
Posts: 145
Good Answers: 5
#6

Re: Why Do Electric Cars Suffer In Cold Weather?

12/21/2013 3:42 AM

Use a small fuel cell to run a CHP/Heat Pump hybrid for temperature regulation and range extension.

Reply
Guru

Join Date: Aug 2008
Location: England & Ireland
Posts: 1063
Good Answers: 61
#7

Re: Why Do Electric Cars Suffer In Cold Weather?

12/21/2013 6:48 AM

So start the IC engine "range extender" - running at tick over speed, then switch the modest amount of generated electricity to warm the battery and the cabin. There you are at 50-60 mph, warm and comfortable, with the IC engine at tick over speed. Sure you will use some liquid fuel under these conditions, but you can't have it all ways.

Reply
Power-User

Join Date: Jun 2013
Posts: 145
Good Answers: 5
#8

Re: Why Do Electric Cars Suffer In Cold Weather?

12/22/2013 3:12 AM

While a fuel cell is tapped for it's electricity, the goal would be to put some of that waste heat to work. I'm not trying to challenge the laws of thermodynamics, just looking at how much of it could be grabbed. I understand that a fuel cell needs to have an operating temperature window to run effectively. However, good insulation allows you to minimize unwanted losses of BTU's. You might be able to get by with a very tiny fuel cell to minimize waste heat losses but sacrifice range extension capability.

Reply
Reply to Blog Entry 8 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); energyconversion (1); garyrich2000 (2); gringogreg (1); lyn (1); SolarEagle (1); tcmtech (1)

Previous in Blog: Once Science Fiction, It'll Be Reality in 2014   Next in Blog: CARMAT Bioprosthetic Heart Implanted in First Patient

Advertisement