GM Backs Sodium Ion Batteries for U.S. Grid Storage

GM is backing sodium-ion batteries for U.S. grid storage as a potentially cheaper alternative to lithium-based systems.

Sodium is far more abundant in the Earth’s crust and oceans, which could lower raw material costs.

Key hurdles remain, including lower power density and manufacturing challenges at scale.

If production can be scaled, sodium-ion could make renewable integration and backup storage more affordable.