A research group out of Chicago has developed “liquid batteries”. I have no idea how the chemistry of this works, but it sounds like you could refuel an electric car a lot like you’d gas up an ICE car, and in a similar amount of time. And about a billion other applications.

Illinois Tech ‘spinout’ startup Influit Energ | EurekAlert!:

The unique high-energy density liquid format of the NEF flow batteries allows use of the same fluids in different devices, meaning fluid, charged at the recharging station from renewable energy sources or a grid, can be used to rapidly refuel vehicles, or for stationary storage and other large portable applications,” Timofeeva says. “Discharged fluid can be returned to a recharge/refuel station for recharging or be charged inside the device by plugging into the power source.