Hopeful new battery tech on the horizon

[kmccune]

I read something about this almost a year back in ´New Atlas¨. It would be much lighter too. Can´t wait,
but what should I do with the 4 L.I. batteries I have? Just think, you could fully charge on the road during a
sandwich break, unlimited range. The auto industry or big oil is bound to kill it. EVs might eliminate
fumes, but at $50k, they still won´t cure freeway gridlock. Corporate will fight to keep us the slaves
of industry.

The power density is amazing.

 

[linklemming]

I have a friend who makes satellites. NASA will only approve Ni-Cad. What if the US as part of infrastructure pumped funds into risky basic research into battery technologies? NASA, DARPA.. No one company, institution could do it alone. We got vaccines quickly because we made that a priority.

Since when?

I work in the spacecraft business (making satellites) for many spacecraft including NASA missions and Li-Ion batteries are pretty common. In fact I wrote the Li-Ion BMS software for several NASA deep space missions.

A 2 second google search shows its even being used on manned missions like the Orion Spacecraft.
https://www.nasa.gov/sites/default/files/atoms/files/4-development_120v_dwhelan.pdf

 

[PedalUma]

Since when?

I work in the spacecraft business (making satellites) for many spacecraft including NASA missions and Li-Ion batteries are pretty common. In fact I wrote the Li-Ion BMS software for several NASA deep space missions.

A 2 second google search shows its even being used on manned missions like the Orion Spacecraft.
https://www.nasa.gov/sites/default/files/atoms/files/4-development_120v_dwhelan.pdf

Great. That's what is good about peer review. We can check each other and learn.
He is doing Cube-Sats. Maybe it is something to do with the way those are packed for launch?

 

[linklemming]

Great. That's what is good about peer review. We can check each other and learn.
He is doing Cube-Sats. Maybe it is something to do with the way those are packed for launch?

Quite possibly, so many factors to consider on the launching environment and desired mission.

I havnt worked cubesats (yet) but have worked on a satellite about the size of a kitchen table (extended solar arrays were 20ft though).

It had a Li-Ion battery the size of 2 car batteries, per OSHA requirements, we had to have a few buckets of a special sand next to it to put on it in case of fire.

In safety training though, management just said, dont be a hero, if this battery catches on fire, the smoke will likely kill you. Just pull the fire alarm on your way
out of the building and let the building burn, thats what insurance is for.

Here is some more good info (especially towards the end where they discuss fusible links for parallel cells).
https://www.theverge.com/2018/8/17/...n-batteries-thermal-runaway-human-spaceflight

All my future DIY packs will be Luna or EM3eV for this reason.