Samsung SDI and General Motors (GM) have signed a new agreement to develop next-gen prismatic batteries. At the same time, Samsung SDI has taken full ownership of the battery plant it was building with GM in Indiana. Samsung SDI previously owned a 50.01% stake in the joint venture, while GM held the remaining 49.99%. 🎁 SammyGuru Rewards Get a free Mystery Box with your next Galaxy Join SammyGuru Rewards — free. “While reflecting recent market changes, this acquisition decision is to continue the strategic partnership with GM,” said a SAMSUNG SDI official.