Other battery suppliers do exist, but CATL still holds the largest market share. Directly behind CATL is another Chinese supplier, BYD/FinDreams, which also doubles as an EV manufacturer. Korea-based LG Energy Solution sits as the third-largest supplier, while Panasonic, a Japanese-based electronics company, is the fourth-largest.

General Motors has signed a multi-year, multi-billion dollar agreement for Norway's Vianode to provide the U.S. automaker with synthetic graphite anode materials for its electric vehicle batteries, the companies said on Wednesday.

The "multibillion"-dollar deal, according to a news release, covers supply of synthetic anode graphite toward 2033.

Key Takeaways GM reached a deal with EV battery materials company Vianode to supply the automaker with synthetic anode graphite.Anode graphite is the largest material by weight in lithium-ion batteries,