Sodium ion is too low-density for GM EVs, but China has been plowing ahead with low-cost, low-range Chinese EVs.

> GM has partnered with Peak Energy to develop next-generation sodium-ion battery cells, but they’re not going into EVs – they’re for grid-scale energy storage projects. GM Ventures is making a strategic investment in Peak Energy.

> Under the partnership, GM will develop the sodium-ion cells in its Michigan battery labs and retain exclusive manufacturing rights. Peak Energy will integrate the cells into its battery storage systems as it ramps up US manufacturing.

Co-locating grid energy storage systems and EV charging stations seems like a profitable setup, and conveniently adjacent to GM's existing business model.