Over the weekend Iran announced that lithium—prized for its importance in electric vehicle and cell phone batteries—has been found within its borders. A lot of it. Per the country's Ministry of Industry, Mines and Trade, the deposit is estimated at 8.5 million tons. If that number pans out, that would make the reserve in Hamedan, in the country's west, the second biggest in the world, reports CNBC. The biggest, at 9.2 million tons, is in Chile. What that could mean for Iran and the rest of the world: