Technologies
Technologies pv magazine
Technologies pv magazine

Energy storage systems come in many forms, leveraging different technology types. A class of electrochemical storage, lithium-ion batteries have established themselves as the industry standard.

But there are many new technologies vying for their market share.

Sodium-ion batteries are widely considered a sustainable and resource-saving answer to future energy storage, while flow batteries offer a viable alternative in long-duration storage applications.
However, the path to commercialization is not a straightforward one.

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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.
Emiliano Bellini
21 hours ago
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ESS Tech to add 8.5 GWh of US-made sodium‑ion batteries to its portfolio ESS Tech is complementing its iron flow storage offering, which is engeeneered for the 8–24 hour long-duration segment, with sodium-ion battery products aimed at short and medium-duration applications.
Marija Maisch
Apr 30, 2026
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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.
Marija Maisch
Apr 29, 2026
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CATL secures world’s largest sodium-ion battery order with Hyperstrong The two companies announced a 60 GWh supply agreement on Monday, marking a pivotal step in the commercialization of sodium-ion battery technology.
Marija Maisch
Apr 27, 2026
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Control, not capacity, could be the next driver of US residential storage investment Investors are shifting focus from deployment growth to platforms that can orchestrate and monetize battery fleets.
Phoebe Skok
Apr 17, 2026
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Volkswagen announces vehicle-to-grid offering in Germany, soon wider Europe Registration will be possible from June, and the service will then be available from the fourth quarter under VW's Elli brand. The integrated offer consists of an electric vehicle, app, electricity tariff, smart meter, wallbox, and installation.
Sandra Enkhardt
Apr 17, 2026
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Researchers make significant advancement into thermal runaway-free sodium-ion batteries The development of a Polymerizable Non-flammable Electrolyte appears to have helped sodium-ion batteries towards a eureka moment for safety.
Tristan Rayner
Apr 10, 2026

All Technologies news

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Sulzer, Hyme Energy to commercialize novel molten salt energy storage Sulzer is developing advanced pumps for Hyme Energy’s patented molten hydroxide salt energy storage technology. Building on the success of the pioneering Molten Salts Storage (MOSS) project in Denmark, the partners now seek to commercilize the solution.
Marija Maisch
Mar 27, 2025
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Pathway to commercialization of aqueous sulfur-based redox flow batteries Researchers in China have identified a series of engineering strategies to bring aqueous sulfur-based redox flow batteries closer to commercial production. Improving catalyst design, ion-selective membranes, and device integration will be key to solve this battery storage technology’s issues.
Emiliano Bellini
Mar 27, 2025
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China announces procurement of sodium-ion batteries with price ceiling at $150/kWh The innovative project located in a suburban district in the south of Shanghai will integrate five different energy storage technologies, including sodium-ion batteries. Its first phase will have a cumulative capacity of 40 MW/160 MWh.
Marija Maisch
Mar 24, 2025
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Inaccurate battery state of health measurements impact revenue, safety, operations A paper from renewable energy technology company 3E lays out strategies to manage battery degradation, and states inaccurate battery energy storage system (BESS) state of health (SoH) measurements can negatively impact safety, impede asset evaluation, and result in financial losses.
Phoebe Skok
Mar 24, 2025
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Sweden’s Cellfion developing PFAS-free membranes for energy storage The startup is exploring membranes free from the per- and polyfluoroalkyl substances (PFAS) known as ‘forever chemicals’ and its wood-derived, cellulose-based products could be used for long-duration energy storage (LDES).
Blathnaid O’Dea
Mar 21, 2025
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Australia’s Altech secures permit to build sodium-ion battery factory in Germany The German subsidiary of the Perth-based sodium chloride solid-state battery specialist is moving ahead with its plans to build a 120 MWh production plant in Saxony, Germany. The project is expected to amount to around €156 million ($170 million).
Marija Maisch
Mar 19, 2025
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Estonia’s Freen launches 10 kWh residential sodium-ion battery – updated with price The new home energy storage solution from Estonia's Freen is based on sodium-ion battery chemistry and can be coupled with both rooftop PV and small wind turbines.
Marija Maisch
Mar 18, 2025
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Combining liquid-based direct air capture with compressed air energy storage Scientists in China have simulated a system that combines liquid-based direct air capture with diabatic compressed air energy storage, for the benefit of both processes. Exploring its economic feasibility, they found the system could achieve a levelized cost of energy of $0.53/kWh and a levelized cost of CO2 captured from air of $259/tCO2.
Lior Kahana
Mar 13, 2025
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China unveils nuclear-powered battery with millennium-long lifespan Beita Pharmatech and Northwest Normal University have develop a carbon-14 nuclear battery encased in silicon carbide, offering unprecedented longevity and application potential.
Vincent Shaw
Mar 13, 2025
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