GM signs an agreement with Norwegian battery supplier, Vianode, to secure synthetic graphite anode materials starting in 2027.

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.

The deal runs from 2027, when Vianode expects to begin producing synthetic graphite at a new North American plant, to 2033, according the companies. The material will be used in battery cells manufactured by the Ultium Cells LLC joint venture between GM and battery supplier LG Energy Solution.