@Timmy again, 100% production limited, not resource-limited - indeed, synthetic #graphite can be literally made from anything at all that contains #carbon).

The two main mass components are the anode and cathode bulk materials - the anode, as mentioned, being graphite. #LFP cathodes are made of iron phosphate, which is basically #fertilizer. Very cheap - react #iron (the most common industrial metal) with #PhosphoricAcid (one of the most common industrial acids).