Overview
- GM announced Tuesday that it has partnered with Peak Energy to co‑develop sodium‑ion battery cells aimed at large stationary storage for utilities, data centers, and industrial sites.
- The company is rolling out a firmware update to enable vehicle‑to‑grid (V2G) for eligible vehicle‑to‑home customers and is running pilots with PG&E in Northern California and DTE Energy in Michigan.
- GM expects prototype work this year at its Michigan labs and plans trial production of sodium‑ion cells at its Battery Cell Development Center in 2028, while saying commercial scale will follow in subsequent years.
- For near‑term capacity, GM expanded work with Redwood Materials and bought a 7.2 MWh second‑life system for a Michigan plant, with plans to deploy roughly 100 reused EV packs at that site next year to cut factory power costs.
- The effort builds on GM’s claim of more than 250,000 bidirectional‑capable EVs on U.S. roads and is meant to offer a domestic, lower‑cost alternative to China‑dominated LFP supply chains while facing regulatory, utility integration, and commercialization risks.