Sodium-ion batteries
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UNIGRID completes Hyundai accelerator test of sodium-ion cells
UNIGRID has completed technology validation of its sodium chromium oxide (NCO) sodium-ion cells through Hyundai Motor Group's ZER01NE Accelerator program, with Hyundai planning to jointly develop a sodium-ion battery energy storage system (BESS).
Scandium doping, coating improve cycling stability of sodium-ion battery cathodes
Researchers have compared bulk scandium doping and surface scandium coating in O3-Na[Ni₁/₂Mn₁/₂]O₂ cathodes for sodium-ion batteries. Both approaches improved cycling stability, with the coated full cell retaining 91.2% of its initial capacity after 300 cycles, while structural analyses revealed distinct bulk- and surface-stabilization mechanisms.
Advanced sodium-ion battery prototypes now approaching 200 Wh/kg
An international team of scientists has reviewed recent advances in sodium-ion battery components, highlighting their potential as a lower-cost, more sustainable alternative to lithium-ion batteries. The researchers identify key challenges including lower energy density, shorter cycle life and manufacturing constraints, while pointing to advances in materials and electrolytes as important to future commercialization.
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Inlyte proves out first full-scale iron–sodium battery system in factory test, paving way for 2026 US production
According to Inlyte, the tested unit incorporates what it describes as the world’s largest sodium metal chloride battery cells and modules built to date, with each module capable of storing more than 300 kWh of energy.
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Sodium-ion battery cell cost could drop to $40/kWh, says IRENA
A report from the International Renewable Energy Agency (IRENA) notes that while it is still uncertain whether sodium-ion batteries will become a disruptive alternative to lithium-ion technology, they could offer significant cost-saving opportunities in applications such as electric vehicles and large-scale energy storage.
Sodium-ion battery storage for ultra-low temperatures
US researchers have developed a sodium-ion pouch cell that operates reliably at temperatures as low as -100 C. The battery was tested with simulated and real renewable energy sources, including wind and solar, and maintained stable performance in both laboratory and field conditions.
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