A company doing similar work that I shared a startup incubator with for a while is Accion. They use a liquid salt so their propellant is sort of pre-ionized.

A company doing similar work that I shared a startup incubator with for a while is Accion. They use a liquid salt so their propellant is sort of pre-ionized. https://accion-systems.com/our-technology/ https://accion-systems.com/our-technology/