For storage at the level of a home or a grid-level battery, absolutely. Li-Ion is dominating because of the amount of inertia and economies of scale it has. Bu

For storage at the level of a home or a grid-level battery, absolutely. Li-Ion is dominating because of the amount of inertia and economies of scale it has. But if we assumed equal amounts of R&D and investment you'd expect a future of solid state batteries for mobile applications and flow batteries for stationary applications