Sodium-ion batteries
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Sodium-ion vs lithium-ion BESS: Cost parity not before 2031
“Europe needs massive investments in energy storage to achieve true independence. This requirement cannot be met by a single technology, let alone by depending on a single geographic area. The goal is therefore to build a storage industry and a broader grid infrastructure under the control of Western countries. A strategic and ambitious goal that will take time,” Dario Bertagna, senior managing director and co-head of Clean Energy at Capital Dynamics, told pv magazine Italia.
May 19, 2026
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New electrolyte tech enables stable operation of high-voltage sodium-ion batteries
U.S. researchers developed a meta-weakly solvating electrolyte that optimizes sodium-ion solvation structure, enabling faster ion transport, reduced side reactions, and improved interfacial stability in high-voltage sodium-ion batteries. This design significantly extends cycle life and outperforms conventional and localized high-concentration electrolytes by promoting more uniform and stable electrode–electrolyte interfaces.
New partnership advances sodium-ion manufacturing in Spain
In a week marked by the largest sodium-ion battery order to date, widely seen as a watershed moment for the technology’s commercialization at scale, one of Europe’s emerging players, Spain’s Bihar Batteries, is strengthening the outlook for European-made sodium-ion batteries.
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All Sodium-ion batteries news
Sodium-ion batteries: Unigrid begins commercial-scale deliveries; Altris and Draslovka partner to scale Europe’s supply chain
With lithium prices reaching a two-year high in early 2026, sodium-ion batteries are once again in the spotlight, as innovators on both sides of the Atlantic announce major milestones.
Why sodium-ion can’t yet challenge lithium-ion’s reign
A new generation of sodium-ion (Na-ion) battery cells has been launched as an alternative to the virtual monopoly of lithium-ion (Li-ion). Although the technology is unlikely to displace significant Li-ion market share, recent improvements make Na-ion a viable solution for certain niche applications, with potential for wider usage if cost becomes competitive.
Jan 15, 2026
Sodium-ion battery cells already near lithium-ion cost parity, set to get cheaper
By 2050, sodium-ion batteries with fast learning rates could deliver storage at 11–14 €/MWh – cheaper than lithium-ion at 16–22 €/MWh – while also offering higher energy-to-power ratios and high cycle durability, a new research finds.
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Mitigating sodium-ion battery degradation through scandium doping
A team at Tokyo University of Science (TUS) has identified a structural mechanism by which adding small amounts of scandium to layered sodium manganese oxide cathodes slows the degradation that typically limits sodium-ion battery lifetimes.
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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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