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Ok, so a new approach for making nanostructured supercaps, great. So what's the energy density they saw? Breakdown voltage? What's the whisker manufacturing pro
by TTPrograms 12y ago
Ok, so a new approach for making nanostructured supercaps, great. So what's the energy density they saw? Breakdown voltage? What's the whisker manufacturing process?
There's lots of work on devices like this, and this article doesn't answer any of the points that you need to see where this tech stands relative to its competitors. The nature article is better, as well as the actual paper:
http://www.nature.com/nature/journal/v509/n7502/full/509568a.html http://www.nature.com/nature/journal/v509/n7502/full/509568a...
http://onlinelibrary.wiley.com/doi/10.1002/adma.201400440/pdf http://onlinelibrary.wiley.com/doi/10.1002/adma.201400440/pd... (Paywall?)
TLDR:
Whiskers grow by heat-treatment - seems pretty scalable to me.
0.55 mWh cm^−3 and 413 mW cm^−3 energy and power densities. LiPos hit 300 mWh cm^-3, for reference, so it's pretty pointless to put this in clothing. Power density is decent, as it's a super cap. It might be interesting to consider electrical grids built with the stuff, but for the moment it looks like the only real applications are for so called "dual-use" applications where you're putting in a boatload of cable anyway. PV solar farms perhaps? IDK if even that's enough to be worthwhile.