Sodium-Ion Grid Storage Goes Mainstream

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CATL’s Tianjin factory now mass-produces sodium-ion batteries for utility-scale storage, overcoming lithium limitations:

• Zero lithium/cobalt: Uses abundant sodium iron phosphate chemistry

• -40°C operation: Maintains 85% capacity at arctic temperatures

• $47/kWh cost (BloombergNEF Q2 2024) – 52% cheaper than LFP

2024 Deployments:
✅ Huaibei Solar Farm (China): 200MWh system stores midday surplus for night use
✅ Swedish Wind Farms: 80MWh cold-climate installations
✅ Safety advantage: Passes nail penetration tests without thermal runaway

"This ends lithium’s monopoly on clean energy storage" – Dr. Elena Schmidt, IEA Storage Lead.

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