Bad headline. This increases power density, not energy density of lithium batteries, by decreasing internal resistance. That potentially increases charging speed. They claim by 10x.
Car charging stations are going to need megawatt chargers if this works.
They talk some about the possibility of future silicon batteries using this technology.
> Also, because there's gaps in that ultra-lightweight nanotube scaffolding and less extraneous binder and additive materials, a battery containing a given amount of active material can become much, much lighter and more compact. Energy density, both by weight and by volume, stands to jump by factors of 2-3.
skeptical of any battery I'm not holding in my hand.
Um, yes. Still, this seems to be a reasonable way to go, especially since the developer claims to be able to make layers of carbon nanotubes cheaply.
Nawa, though... They announced in 2019 that they would be shipping ultracapacitors by the end of the year. But their products page doesn't list any. They're not a vendor known to Avnet or DigiKey. They announced a super-bike with ultracapacitor boost in 2019, and there are pictures, but none show the bike in motion.
Megawatt car charging stations are already a thing. The Tesla V3 supercharges are a 1MW power source, but right now they split that between four charging ports.
Battery power density is certainly going to continue increasing through a variety of means. It will be very interesting to see how these sort of power rates are handled safely via charging cables in the future!
Car charging stations are going to need megawatt chargers if this works.
They talk some about the possibility of future silicon batteries using this technology.