Recent content by skiandtea

These are the high discharge 18650: https://www.amazon.com/dp/B010NUUQFK/?tag=pfamazon01-20 The 18650s are highly desirable because of their high discharge to draw large currents. I didn't do the research to say why else 18650s were chosen, though I assume there is very good reasoning. The 80...

The pressure release valve would lead to vacuum; the reseating pressure will be considerably higher than near-vacuum to ensure the batteries operate in normal pressure ranges. Batteries have to be used because the system is moving very rapidly. We understand that the use of batteries...

The batteries themselves aren't exposed to vacuum. The design currently is to place them in a box, fill it with paraffin wax (leaving a small air gap), evacuating the air, and reintroducing nitrogen gas at the top. The box is airtight to maintain the pressure even though the outside of the box...

I'm in charge of designing a battery bank (using 18650 batteries) that will produce large amounts of heat for a short period of time. The battery bank will be in a near vacuum (~800 Pa), so convective heat transfer will not be effective. Since the operation time is only ~80 seconds, my thought...