Also, we don't have to limit ourselves to lithium. Li makes sense in vahicular applications, but the grid storage could be perfectly fine with Na or any other

Also, we don't have to limit ourselves to lithium. Li makes sense in vahicular applications, but the grid storage could be perfectly fine with Na or any other technology. Here is, for example, a sodium ion chemistry based on prussian blue: [0] https://natron.energy/technology/ https://natron.energy/technology/