The largest lithium-ion battery manufacturers in the world are CATL and BYD in China; LG Energy Solution, Samsung SDI, and SK Innovation in South Korea; and Panasonic in Japan. In 2021, these six companies produced 86 percent of the world’s lithium-ion rechargeable batteries, with CATL alone holding a one-third global share.6 Most of the cobalt in these batteries originated in the Congo.
