Scrutable

Apologies for what I suspect to be a misleading headline, but it’s not mine. However I’m not sure what they do mean exactly. Does anyone here have access to Applied Physics Reviews?
https://scienmag.com/simple-self-chargi ... r-devices/

Grumble wrote: ↑

Tue Feb 25, 2020 10:59 pm

Apologies for what I suspect to be a misleading headline, but it’s not mine. However I’m not sure what they do mean exactly. Does anyone here have access to Applied Physics Reviews?
https://scienmag.com/simple-self-chargi ... r-devices/

Yes.

I'll have a read but it's generally a reputable journal, or at least AIP is a reputable publisher.

It's at https://aip.scitation.org/doi/10.1063/1.5132841 for anyone else who'd like a direct link.

From a brief skim before coffee, it's a battery* which has negative resistance and capacitance at certain charge states. That means when included in a circuit, that circuit can become unstable, and if current is available, it will draw charge into itself, without any significant voltage being applied on average.

Practically, think of something based on it as being like a self-winding mechanical watch, where some external motion winds a spring. Here, some external charge randomly induced in the circuit by e.g. low frequency magnetic pickup, random electrothermal effects etc. could charge the battery.

On the novel battery technology front, it is good to see Hydro-Québec backing John B. Goodenough and Maria Helene Braga's solid-state electrolyte battery.

https://news.hydroquebec.com/en/press-r ... ena-braga/