i'm sure the military already has them in their most expensive projects, but probably currently a huge cost in production, and probably the weight to momentary power ratio is probably still in the range of NiCd grade of power density, if not less
Might be, but I don't plan on signing up for the army to get better batteries...
my point was that there is probably advanced military tech using larger scale versions of these things, for satellites and high altitude drones, for example
if they can get the power to weight ratio up high enough and have them put out more power for less time it's gonna be a boon for autonomous spy recon drones too
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