Two lines show the price of battery grade lithium in February 2018-2022. The top line shows spot prices for lithium carbonate in China. It starts at $24,500 in 2018, drops to $7,025 in 2020, and then skyrockets to $54,725 in 2022. The second line shows the global weighted average price of lithium carbonate. It starts at $17,338 in 2018, drops to $7,435 in 2020 and increases to $36,780 in 2022.