# GM Supports Sodium-Ion Batteries for U.S. Grid Storage

General Motors is backing the development of sodium-ion batteries for large-scale grid storage in the United States. This move diversifies energy storage options beyond lithium-ion, potentially reducing costs and supply chain risks. The technology could play a key role in making renewable energy more reliable and affordable.

**Importance:** 3/5

## Sources

### Technology
- [Hacker News](https://spectrum.ieee.org/sodium-ion-battery-peak-energy) — Sat, 25 Jul 2026 21:48:22 +0000