"Lithium production must quadruple between 2020 and 2030 to meet growing demands"
https://www.fastmarkets.com/insights/lithium-supply-and-demand-to-2030
One lithium company I think maybe undervalued is African Energy Metals (CUCO.v NDENF).
CUCO controls 2 prospective lithium properties in the Congo's Manono region. Artisanal miners have already found mineralization at surface at these projects.
Both projects are contiguous with major miners in the area like Tantalex Resources (TTX) and AVZ Minerals' (AVZ). CUCO is comparatively undervalued IMO, trading in the mid .10's for some time now.