Interesting materials already being developed by Northvolt, Sila, and others include sodium, sulfur, tea leaves, and silicon — all mostly geared to improve EV power packs. The calcium-oxygen ...

Sulfates, where sulfur and oxygen bind with a cation, are also common; the gypsum used to make drywall boards and PVC pipes is calcium sulfate, for example. The abundance of sulfide and sulfate ...