Ideally they will be used in personal electronics as sodium chloride solid state (SCSS) batteries are far safer and not going to explode or cause a run-away fire.
They also don't need some "critical" minerals such as graphite, cobalt and nickel.
They also don't need some "critical" minerals such as graphite, cobalt and nickel.
As with the rare earth minerals, the supply of graphite, cobalt and nickel is vulnerable hence the designation as critical minerals by Western Governments.