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
May 08, 2026
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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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Dutch start-up develops sodium-ion battery tech for solar colocation Founded by former Tesla leaders, Amsterdam-based Moonwatt is taking a novel approach to sodium-ion battery technology, optimizing it for colocation with solar power plants. The company has raised $8.3 million in seed funding to accelerate its growth, with plans for a pilot installation in Europe next year and commericial deployments by 2027.
Marija Maisch
Mar 12, 2025
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Energy Dome targets Australian market with carbon-dioxide battery tech Italian energy storage company Energy Dome is scouting potential sites across Victoria to deploy its carbon dioxide battery technology as it works to establish a foothold in the Australian energy market.
David Carroll
Mar 12, 2025
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Work begins on 2 GWh lithium ion-redox flow battery hub in China A state-backed consortium has broken ground on a 1 GW/2 GWh energy storage system in Yantai, Shandong, advancing the province’s renewable integration and grid flexibility goals.
Vincent Shaw
Mar 10, 2025
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Czech company to provide cathode material to U.S. sodium-ion maker Natron Energy Prussian blue material manufactured by Draslovka will become part of Natron’s sodium-ion battery supply chain. The Czech company plans to build new facilities on both sides of the Atlantics to supply the U.S. company's production.
Marija Maisch
Mar 07, 2025
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Vanadium flow battery maker preps for UK long-duration storage tender Investor and renewables developer Frontier Power Ltd has said it is planning to lodge 'multiple' vanadium flow battery (VFB)-related bids in a long-duration energy storage (LDES) tender expected before July.
Max Hall
Mar 07, 2025
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Energy storage system powered by forest waste retains 60% capacity after 10,000 cycles Researchers in Spain used electrodes derived from wood biomass discarded by sawmills as waste to create a hybrid system combining batteries and supercapacitors.
Blathnaid O’Dea
Mar 06, 2025
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Recycling lithium-ion batteries using cooking oil, water, and ultrasound Researchers at the UK’s University of Leicester have developed a method of extracting valuable metals from a waste product of used batteries with a mixture of water and vegetable oil.
Blathnaid O’Dea
Mar 05, 2025
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Quidnet Energy tests MWh-scale geomechanical energy storage Quidnet Energy has demonstrated its long-duration geomechanical energy storage (GES) at the megawatt-hour scale. The tech stores excess grid electricity by pressurizing water underground, later releasing it to supply reliable power.
Anne Fischer
Mar 04, 2025
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Sumitomo Electric launches vanadium redox flow battery with 30-year lifespan The new system comes in three versions, providing up to 10 hours of storage. It achieves improvements in output and energy density, through component enhancements, thereby reducing cost and physical footprint.
Marija Maisch
Mar 03, 2025

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