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Zinc Microcapacitors Are the Best of Both Worlds
- dvh 2y agoWhat's wrong with C0G?
- magicalhippo 2y agoVery low dielectric constant, so low capacitance for a given size[1]. It also seema these devices are more 2D than 3D so surface area matters more than volume[2]. [1]: https://blog.knowlescapacitors.com/blog/capacitor-fundamentals-part-8-dielectric-classifications https://blog.knowlescapacitors.com/blog/capacitor-fundamenta... [2]: https://pubs.acs.org/doi/10.1021/acsomega.2c07549 https://pubs.acs.org/doi/10.1021/acsomega.2c07549
- hulitu 1y ago> Very low dielectric constant, so low capacitance for a given size If they can make it precise, maybe they could be use in RF. But i think temperature performance might be a problem.
- marcosdumay 2y agoThey are not even the same kind of component. If you try to make an integrator out of this thing, you'll have a very bad time.
- myself248 2y agoSounds like a good match for sensor nodes where energy harvesting may be slow and consumption is intermittent. You don't need massive energy capacity, but you need good power density to support transmit bursts, and you need very high cycle durability.
- scld 2y agoYeah, as long as self-discharge/leakage rates are acceptable, there are a lot of use cases for this middle ground tech.
- westurner 2y agoWhy Zinc if Carbon is sufficient? From "Eco-friendly artificial muscle fibers can produce and store energy" https://news.ycombinator.com/item?id=42942421 https://news.ycombinator.com/item?id=42942421 : > "Giant nanomechanical energy storage capacity in twisted single-walled carbon nanotube ropes" (2024) https://www.nature.com/articles/s41565-024-01645-x https://www.nature.com/articles/s41565-024-01645-x : >> 583 Wh/kg That's with mechanical twisting though; graphene supercapacitors in general have lower energy density than (micro-) capacitors?
- hulitu 1y ago> Zinc Microcapacitors Are the Best of Both Worlds Lifetime ,?