Exciting news by QuantumScape on their Lithium Solid state...

Exciting news by QuantumScape on their Lithium Solid state batteries which apparently use more lithium (up to 40% more) but overcome a lot of the shortfalls associated with todays lithium batteries.

Relative to a conventional lithium-ion battery, solid-state lithium-metal battery technology has the potential to increase the cell energy density (by eliminating the carbon or carbon-silicon anode), reduce charge time (by eliminating the charge bottleneck resulting from the need to have lithium diffuse into the carbon particles in conventional lithium-ion cell), prolong life (by eliminating capacity fade that results from the unwanted chemical side reaction between the carbon and liquid electrolyte in conventional lithium-ion cells), improve safety (by eliminating the combustible organic porous separator and organic anolyte material in conventional cells) and lower cost (by eliminating the anode materials and manufacturing costs).

https://www.quantumscape.com/technology