What sort of systems are used to cool batteries in the air? Liquid cooled? Air cooled?

I am interested in lithium chemistry batteries in the form of either pouch cells or 18650 batteries inside of boxes placed in the fuselage or wing.

  • $\begingroup$ What type of batteries are you interested in? $\endgroup$ – selectstriker2 Dec 1 '17 at 18:59
  • $\begingroup$ Lithium chemistry batteries such as Li-Ion or Li-Po $\endgroup$ – Josh Fang Dec 1 '17 at 19:18

As far as I can tell, current aviation lithium batteries do not use active cooling.

I know the True Blue Power TB17 (Robinson R44 & R66, Bell 505 Jet Ranger X) and TB44 (Cessna Caravan, DHC-6, DHC-8) do not require active cooling.

I haven't seen any easily accessible info on the Saft batteries for the A350.


From this presentation for the A320 family:

Battery ventilation

Achieved by ambient air being drawn around the batteries and then vented directly outboard via a venturi.

So the ventilation air provides cooling as well, especially when at cruise altitude. Batteries in the avionics bay are further cooled by a separate aircon system. From the same presentation:

enter image description here

  • $\begingroup$ Does the A320 family uses Li batteries? $\endgroup$ – mins Dec 2 '17 at 16:20
  • $\begingroup$ @mins From what I've found, the A320 family uses NiCd batteries. $\endgroup$ – selectstriker2 Dec 7 '17 at 18:29
  • $\begingroup$ @selectstriker2: I got that info too, so the post doesn't answer the question which is about "lithium chemistry batteries". $\endgroup$ – mins Dec 8 '17 at 1:11
  • $\begingroup$ @mins I can remove it if required. $\endgroup$ – Koyovis Dec 8 '17 at 1:44
  • $\begingroup$ "Ventilation" makes it sound like the primary purpose is preventing buildup of corrosive and/or flammable gaseous chemicals, not cooling? $\endgroup$ – rackandboneman Feb 1 '18 at 9:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.