Air-Cooled versus Liquid-Cooled Battery Systems

[Lock]

Brief article about the choices car manufacturers are making, air-cooled versus liquid-cooled lithium packs for temperature management:
Auto Makers Weigh Use of Liquid-Cooled Battery Systems for EVs
By Byron Pope
WardsAuto.com, Sep 17, 2010 8:45 AM
http://wardsauto.com/ar/ford_batteries_nissan_100917/

tks
loCK

 

[markcycle]

Brief article about the choices car manufacturers are making, air-cooled versus liquid-cooled lithium packs for temperature management:
Auto Makers Weigh Use of Liquid-Cooled Battery Systems for EVs
By Byron Pope
WardsAuto.com, Sep 17, 2010 8:45 AM
http://wardsauto.com/ar/ford_batteries_nissan_100917/

tks
loCK

Excellent article thanks, nice to see the technology being taken serious and talked about as if the cars are really going to happen. I'd go with liquid cooling and have been thinking of doing a LIpo mineral oil bath battery pack mostly for safety reasons. I think the secondary reasons the auto guy are using liquid cooling is, in a liquid cooled system the battery is solidly encased. With air cooling its more difficult to encase the battery pack such that air pass through the cells and the pack is still encased completely enough to contain a cell fire. Your not going to hear them talk about the safety issues but you know it high on there engineering priorities (I hope).

 

[Lock]

...have been thinking of doing a LIpo mineral oil bath...

Cool. I don't know anything about these folks but ya might ask their opinion on the relative merits of mineral oil versus ?
http://www.paratherm.com/index.asp

Cheers
loCk

 

[battman]

Quoting Mark Perry of Nissan from the article

“Our pack design itself, not only the chemistry, but the architecture of the pack itself, is designed to work at all the ambient temperatures found in the U.S”

“If we were in Dubai and launching this you’d have to do some additional cooling”

Maximum average summer temperatures in June and July Dubai is 103F, 103F
In Phoenix Arizona it is 103F, 105F.

Why does Dubai require additional cooling, but Phoenix doesn't?

 

[amberwolf]

I dunno, especially since Dubai is coastal and probably very humid relative to Phoenix.