The deal, with Norway’s Vianode, is for delivery of a material critical for electric-vehicle batteries.

General Motors has reached an agreement with battery materials producer Vianode that will develop and supply synthetic anode graphite for the automaker’s battery manufacturing.

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.