[jhallenworld]

I think "solid-state" is a marketing term which means you need to use Fermi-Dirac statistics to model your device, vs. vacuum tubes where you can use Maxwell-Boltzmann statistics. I think you can use Maxwell-Boltzmann at least for the ions in the electrolyte.. but maybe have to use for Fermi-Dirac for all conductors in a solid-state battery.

[inigyou]

I thought it meant your database was singly responsible, open for extension but closed for modification, Liskov substitutable, interface segregated, and dependency inverted.