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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Latest News

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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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New method to restore lithium-ion battery ageing With the help of artificial intelligence, Fudan University researchers have developed a new lithium carrier molecule, CF3SO2Li, significantly extending the life of lithium-ion batteries and restoring their electrochemical performance.
Vincent Shaw
Feb 25, 2025
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Sodium-ion battery study offers power and energy breakthrough with new organic cathode New cathode material combined with carbon nanotubes delivers high energy and power in sodium-ion batteries.
Tristan Rayner
Feb 21, 2025
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German research partners launch battery cell stacking innovation project A new German-funded project aims to advance battery manufacturing innovation, with key technology and industry partners involved.
Tristan Rayner
Feb 19, 2025
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Brenmiller Energy begins 32 MWh thermal battery system install for beverage plant Brenmiller's thermal energy storage system will store up to 32 MWh of energy to supply a beverage plant, which requires variable forms of industrial heat, on demand.
Tristan Rayner
Feb 18, 2025
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Sodium-ion vs. lithium-iron-phosphate batteries Researchers in Germany have compared the electrical behaviour of sodium-ion batteries with that of lithium-iron-phosphate batteries under varying temperatures and state-of-charges. Their work shows how state-of-charge during cycling significantly affects the efficiency of sodium-ion devices.
Emiliano Bellini, Tristan Rayner
Feb 17, 2025
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CEO replaced at US iron flow battery maker ESS Tech ESS Tech changes strategic direction with a new CEO, and a new aim to win contracts with data center operators.
Tristan Rayner
Feb 17, 2025
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Record 13.6 GWh of battery energy storage capacity added in January Rho Motion noted big projects in Saudi Arabia and Hubei, China, and reported the only non-lithium-ion sites were three Chinese vanadium flow batteries.
Max Hall
Feb 17, 2025
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Hydrostor nets $200M for its long-duration energy storage ambitions Hydrostor secured convertible note funding as it continues to build large scale, long-duration compressed air energy storage.
Tristan Rayner
Feb 17, 2025
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Australian redox flow battery maker Allegro secures fresh cash to scale to mass production The New South Wales (NSW)-based startup wants to enter mass production with products featuring a microemulsion electrolyte made of cheap, easily available and recyclable, non-toxic, and non-flammable materials.
Max Hall
Feb 14, 2025

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